Fix typos in OBP40 config

Fix vertical time axis label in graphical charts

boards/obp70_s3_n16r8.json

@@ -0,0 +1,56 @@
+{
+  "build": {
+    "arduino":{
+      "ldscript": "esp32s3_out.ld",
+      "partitions": "default_16MB.csv",
+      "memory_type": "qio_opi"
+    },
+    "core": "esp32",
+    "extra_flags": [
+      "-DBOARD_HAS_PSRAM",
+      "-DARDUINO_ESP32S3_DEV",
+      "-DARDUINO_USB_MODE=1",
+      "-DARDUINO_USB_CDC_ON_BOOT=1",
+      "-DARDUINO_RUNNING_CORE=1",
+      "-DARDUINO_EVENT_RUNNING_CORE=1"
+    ],
+    "f_cpu": "240000000L",
+    "f_flash": "80000000L",
+    "flash_mode": "qio",
+    "hwids": [
+      [
+        "0x303A",
+        "0x1001"
+      ]
+    ],
+    "mcu": "esp32s3",
+    "variant": "obp70s3"
+  },
+  "connectivity": [
+    "bluetooth",
+    "wifi"
+  ],
+  "debug": {
+    "default_tool": "esp-builtin",
+    "onboard_tools": [
+      "esp-builtin"
+    ],
+    "openocd_target": "esp32s3.cfg"
+  },
+  "frameworks": [
+    "arduino",
+    "espidf"
+  ],
+  "name": "OBP70 ESP32-S3-N16R8 16 MB QD, 8 MB PSRAM)",
+  "upload": {
+    "flash_size": "16MB",
+    "maximum_ram_size": 327680,
+    "maximum_size": 16777216,
+    "use_1200bps_touch": true,
+    "wait_for_upload_port": true,
+    "require_upload_port": true,
+    "speed": 460800
+  },
+  "url": "https://open-boat-projects.org/en/diy-multifunktionsdisplay-obp-60/",
+  "vendor": "Open Boat Projects"
+}

lib/gwwifi/GwWifi.cpp

@@ -132,18 +132,40 @@ void GwWifi::loop(){
             {
                 LOG_DEBUG(GwLog::LOG,"wifiClient: retry connect to %s", wifiSSID->asCString());
 
-                // CRITICAL SECTION: WiFi-Operationen müssen serialisiert werden
+                // Keep locked sections short to avoid cross-core stalls/WDT.
                 if (acquireMutex()){
-                    WiFi.disconnect(true); 
+                    WiFi.disconnect(true);
-                    delay(300);
-                    esp_wifi_stop();
-                    delay(100);
-                    esp_wifi_start();
                     releaseMutex();
+                }
+                else{
+                    LOG_DEBUG(GwLog::ERROR,"GwWifi: mutex timeout in loop (disconnect)");
+                }
+
+                delay(300);
+
+                if (acquireMutex()){
+                    esp_err_t stopErr=esp_wifi_stop();
+                    releaseMutex();
+                    if (stopErr != ESP_OK){
+                        LOG_DEBUG(GwLog::ERROR,"GwWifi: esp_wifi_stop failed: %d",(int)stopErr);
+                    }
+                }
+                else{
+                    LOG_DEBUG(GwLog::ERROR,"GwWifi: mutex timeout in loop (stop)");
+                }
+
+                delay(100);
+
+                if (acquireMutex()){
+                    esp_err_t startErr=esp_wifi_start();
+                    releaseMutex();
+                    if (startErr != ESP_OK){
+                        LOG_DEBUG(GwLog::ERROR,"GwWifi: esp_wifi_start failed: %d",(int)startErr);
+                    }
                     connectInternal();
                 }
                 else{
-                    LOG_DEBUG(GwLog::ERROR,"GwWifi: mutex timeout in loop");
+                    LOG_DEBUG(GwLog::ERROR,"GwWifi: mutex timeout in loop (start)");
                 }
             }
         }

lib/obp60task/Changes_to_original.txt

@@ -0,0 +1,14 @@
+Changes to original project (wellenvogel)
+
+* esp32-nmea2000-obp60/gwwifi/GwWifi.cpp
+    - any fixes for reconnect handling
+* GWStatisticsw.h
+    - changed time source for log messages   
+* esp32-nmea2000-obp60/platformio.ini
+    - change to newer versions for AsyncTCP and AsyncWebServer (better handling for bad WiFi connections)
+
+    From AsyncTCP-esphome @ 2.0.1
+         ottowinter/ESPAsyncWebServer-esphome@2.0.1
+
+    To AsyncTCP-esphome @ 2.1.1
+         ottowinter/ESPAsyncWebServer-esphome@3.4.0

lib/obp60task/Code_Size.sh

@@ -0,0 +1,14 @@
+#!/bin/bash
+
+dir="$1"
+
+total=0
+
+while IFS= read -r -d '' file; do
+    lines=$(wc -l < "$file")
+    echo "$file : $lines"
+    total=$((total + lines))
+done < <(find "$dir" \( -name "*.c" -o -name "*.cpp" -o -name "*.h" \) -type f -print0)
+
+echo "-----------------------"
+echo "Over all files: $total"

lib/obp60task/ImageDecoder.cpp

@@ -2,13 +2,22 @@
 #include <mbedtls/base64.h>
 
 // Decoder for Base64 content
-bool ImageDecoder::decodeBase64(const String& base64, uint8_t* outBuffer, size_t outSize, size_t& decodedSize) {
+bool ImageDecoder::decodeBase64(const char* base64, size_t base64Len, uint8_t* outBuffer, size_t outSize, size_t& decodedSize) {
+    if (base64 == nullptr) {
+        decodedSize = 0;
+        return false;
+    }
     int ret = mbedtls_base64_decode(
         outBuffer,
         outSize,
         &decodedSize,
-        (const unsigned char*)base64.c_str(),
+        (const unsigned char*)base64,
-        base64.length()
+        base64Len
     );
     return (ret == 0);
 }
+
+// Decoder for Base64 content
+bool ImageDecoder::decodeBase64(const String& base64, uint8_t* outBuffer, size_t outSize, size_t& decodedSize) {
+    return decodeBase64(base64.c_str(), base64.length(), outBuffer, outSize, decodedSize);
+}

lib/obp60task/ImageDecoder.h

@@ -5,5 +5,6 @@
 
 class ImageDecoder {
 public:
+    bool decodeBase64(const char* base64, size_t base64Len, uint8_t* outBuffer, size_t outSize, size_t& decodedSize);
     bool decodeBase64(const String& base64, uint8_t* outBuffer, size_t outSize, size_t& decodedSize);
 };

lib/obp60task/NetworkClient.cpp

@@ -7,13 +7,134 @@ extern "C" {
     #include "puff.h"
 }
 
+static uint32_t crc32_update(uint32_t crc, const uint8_t* data, size_t len) {
+    crc = ~crc;
+    for (size_t i = 0; i < len; ++i) {
+        crc ^= data[i];
+        for (int bit = 0; bit < 8; ++bit) {
+            uint32_t mask = -(int32_t)(crc & 1U);
+            crc = (crc >> 1) ^ (0xEDB88320U & mask);
+        }
+    }
+    return ~crc;
+}
+
 // Constructor
 NetworkClient::NetworkClient(size_t reserveSize)
     : _doc(reserveSize),
-      _valid(false)
+      _valid(false),
+      _jsonRaw(nullptr),
+      _jsonRawLen(0),
+      _imageWidth(0),
+      _imageHeight(0),
+      _numberPixels(0),
+      _pictureBase64(nullptr),
+      _pictureBase64Len(0)
 {
 }
 
+NetworkClient::~NetworkClient() {
+    if (_jsonRaw != nullptr) {
+        free(_jsonRaw);
+        _jsonRaw = nullptr;
+        _jsonRawLen = 0;
+    }
+}
+
+bool NetworkClient::findJsonIntField(const char* json, size_t len, const char* key, int& outValue) {
+    if (json == nullptr || key == nullptr || len == 0) {
+        return false;
+    }
+
+    char pattern[64];
+    int plen = snprintf(pattern, sizeof(pattern), "\"%s\"", key);
+    if (plen <= 0 || (size_t)plen >= sizeof(pattern)) {
+        return false;
+    }
+
+    const char* keyPos = strstr(json, pattern);
+    if (keyPos == nullptr) {
+        return false;
+    }
+
+    const char* end = json + len;
+    const char* colon = strchr(keyPos + plen, ':');
+    if (colon == nullptr || colon >= end) {
+        return false;
+    }
+
+    const char* p = colon + 1;
+    while (p < end && (*p == ' ' || *p == '\t' || *p == '\r' || *p == '\n')) {
+        ++p;
+    }
+    if (p >= end) {
+        return false;
+    }
+
+    char* parseEnd = nullptr;
+    long value = strtol(p, &parseEnd, 10);
+    if (parseEnd == p) {
+        return false;
+    }
+    outValue = (int)value;
+    return true;
+}
+
+bool NetworkClient::extractJsonStringInPlace(char* json, size_t len, const char* key, char*& outValue, size_t& outLen) {
+    outValue = nullptr;
+    outLen = 0;
+
+    if (json == nullptr || key == nullptr || len == 0) {
+        return false;
+    }
+
+    char pattern[64];
+    int plen = snprintf(pattern, sizeof(pattern), "\"%s\"", key);
+    if (plen <= 0 || (size_t)plen >= sizeof(pattern)) {
+        return false;
+    }
+
+    char* keyPos = strstr(json, pattern);
+    if (keyPos == nullptr) {
+        return false;
+    }
+
+    char* end = json + len;
+    char* colon = strchr(keyPos + plen, ':');
+    if (colon == nullptr || colon >= end) {
+        return false;
+    }
+
+    char* p = colon + 1;
+    while (p < end && (*p == ' ' || *p == '\t' || *p == '\r' || *p == '\n')) {
+        ++p;
+    }
+    if (p >= end || *p != '"') {
+        return false;
+    }
+
+    char* valueStart = p + 1;
+    char* cur = valueStart;
+    while (cur < end) {
+        if (*cur == '\\') {
+            ++cur;
+            if (cur < end) {
+                ++cur;
+            }
+            continue;
+        }
+        if (*cur == '"') {
+            *cur = '\0';
+            outValue = valueStart;
+            outLen = (size_t)(cur - valueStart);
+            return true;
+        }
+        ++cur;
+    }
+
+    return false;
+}
+
 // Skip GZIP Header an goto DEFLATE content
 int NetworkClient::skipGzipHeader(const uint8_t* data, size_t len) {
     if (len < 10) return -1;
@@ -51,14 +172,16 @@ int NetworkClient::skipGzipHeader(const uint8_t* data, size_t len) {
 // HTTP GET + GZIP Decompression (reading in chunks)
 bool NetworkClient::httpGetGzip(const String& url, uint8_t*& outData, size_t& outLen) {
 
-    const size_t capacity = READLIMIT;   // Read limit for data (can be adjusted in NetworkClient.h)
+    const size_t capacity = READLIMIT;          // Read limit for data (can be adjusted in NetworkClient.h)
     uint8_t* buffer = (uint8_t*)malloc(capacity);
 
+    // If not with WiFi connectetd then return without any activities
     if (!gwWifi.clientConnected()) {
         if (DEBUGING) {Serial.println("No WiFi connection");}
         return false;
     }
     
+    // If frame buffer not correct allocated then return without any activities
     if (!buffer) {
         if (DEBUGING) {Serial.println("Malloc failed buffer");}
         return false;
@@ -71,20 +194,50 @@ bool NetworkClient::httpGetGzip(const String& url, uint8_t*& outData, size_t& ou
     http.setTimeout(TCPREADTIMEOUT);            // Read timeout in ms (can be adjusted in NetworkClient.h)
 
     http.begin(url);
+
+    // NEW: force server to close the connection after the response (prevents "stuck" keep-alive reads)
+    http.addHeader("Connection", "close");
+
+    // NEW: request gzip, but we will only decompress if the server actually answers with gzip
     http.addHeader("Accept-Encoding", "gzip");
 
+    // NEW: register headers BEFORE GET() (more reliable with Arduino HTTPClient)
+    if (DEBUGING) {
+        // We need follow key words
+        const char* keys[] = {
+            "Content-Encoding",
+            "Transfer-Encoding",
+            "Content-Length"
+        };
+        // Read header
+        http.collectHeaders(keys, 3);
+    }
+
     int code = http.GET();
     if (code != HTTP_CODE_OK) {
-        Serial.printf("HTTP ERROR: %d\n", code);
+        Serial.printf("HTTP Client ERROR: %d (%s)\n", code, http.errorToString(code).c_str());
 
         // Hard reset HTTP + socket
         WiFiClient* tmp = http.getStreamPtr();
         if (tmp) tmp->stop();   // Force close TCP socket
+        
         http.end();
-
         free(buffer);
         return false;
     }
+    else{       
+        if (DEBUGING) {
+            String ce = http.header("Content-Encoding");
+            String te = http.header("Transfer-Encoding");
+            String cl = http.header("Content-Length");
+
+            // Print header informations
+            Serial.printf("Content-Encoding=%s Transfer-Encoding=%s Content-Length=%s\n",
+                        ce.c_str(),
+                        te.c_str(),
+                        cl.c_str());
+        }                
+    }
 
     WiFiClient* stream = http.getStreamPtr();
 
@@ -93,55 +246,251 @@ bool NetworkClient::httpGetGzip(const String& url, uint8_t*& outData, size_t& ou
     const uint32_t READ_TIMEOUT = READDATATIMEOUT;   // Timeout for reading data (can be adjusted in NetworkClient.h)
 
     bool complete = false;
+    bool aborting = false;   // NEW: remember if we must force-close socket
 
-    while (http.connected() && !complete) {
+    // NEW: detect if server really sent gzip
+    String ce = http.header("Content-Encoding");
+    bool isGzip = ce.equalsIgnoreCase("gzip");
 
-        size_t avail = stream->available();
+    // NEW: read expected body size if provided by server (prevents waiting forever for missing bytes)
+    int total = http.getSize();  // returns Content-Length, or -1 if unknown/chunked
 
-        if (avail == 0) {
+    // NEW: fail fast if server claims something larger than our buffer
-            if (millis() - lastData > READ_TIMEOUT) {
+    if (total > 0 && (size_t)total > capacity) {
-                Serial.println("TIMEOUT waiting for data!");
+        Serial.println("Response exceeds READLIMIT.");
-                break;
+        aborting = true;
-            }
-            delay(1);
-            continue;
-        }
-
-        if (len + avail > capacity)
-            avail = capacity - len;
-
-        int read = stream->readBytes(buffer + len, avail);
-        len += read;
-        lastData = millis();
-
-        if (DEBUGING) {Serial.printf("Read chunk: %d (total: %d)\n", read, (int)len);}
-
-        if (len < 20) continue;  // Not enough data for header
-
-        int headerOffset = skipGzipHeader(buffer, len);
-        if (headerOffset < 0) continue;
-
-        unsigned long testLen = len * 8; // Dynamic expansion
-        uint8_t* test = (uint8_t*)malloc(testLen);
-
-        if (!test) continue;
-
-        unsigned long srcLen = len - headerOffset;
-
-        int res = puff(test, &testLen, buffer + headerOffset, &srcLen);
-        if (res == 0) {
-            if (DEBUGING) {Serial.printf("Decompress OK! Size: %lu bytes\n", testLen);}
-            outData = test;
-            outLen = testLen;
-            complete = true;
-            break;
-        }
-
-        free(test);
     }
 
-    // --- Added: Force-close connection in all cases to avoid stuck TCP sockets ---
+    // NEW: if not gzip, we will not try to decompress (prevents false "Decompress OK" / random success)
-    if (stream) stream->stop();
+    // You can either handle plain JSON here or just fail-fast.
+    if (!isGzip && !aborting) {
+        if (DEBUGING) {
+            Serial.println("Server response is NOT gzip (Content-Encoding != gzip).");
+            Serial.println("Either disable Accept-Encoding: gzip or add plain-body handling here.");
+        }
+
+        // --- Plain-body handling (recommended): read full body into outData as-is ---
+        // NEW: try to read Content-Length bytes if available (more robust)
+        if (total > 0 && (size_t)total > capacity) {
+            Serial.println("Plain response exceeds READLIMIT.");
+            aborting = true;
+        } else {
+            // Read until we have all bytes (Content-Length) or until connection closes + buffer drains
+            while ((http.connected() || (stream && stream->available())) && !aborting) {
+                size_t avail = stream ? stream->available() : 0;
+                if (avail == 0) {
+                    if (millis() - lastData > READ_TIMEOUT) {
+                        Serial.println("TIMEOUT waiting for data (plain)!");
+                        aborting = true;
+                        break;
+                    }
+                    delay(1);
+                    continue;
+                }
+
+                if (len >= capacity) {
+                    Serial.println("READLIMIT reached, aborting (plain).");
+                    aborting = true;
+                    break;
+                }
+
+                if (len + avail > capacity)
+                    avail = capacity - len;
+
+                int read = stream->readBytes(buffer + len, avail);
+                if (read > 0) {
+                    len += (size_t)read;
+                    lastData = millis();
+                }
+
+                // NEW: stop reading as soon as we have the full response
+                if (total > 0 && (int)len >= total) {
+                    break; // we got full body
+                }
+            }
+        }
+
+        if (aborting) {
+            // --- Added: Force-close connection only if aborted to avoid TCP RST storms ---
+            if (stream) stream->stop();   // Force close TCP socket
+            http.end();
+            free(buffer);
+            return false;
+        }
+
+        if (total > 0 && (int)len != total) {
+            Serial.printf("Plain response incomplete: got=%d expected=%d\n", (int)len, total);
+            if (stream) stream->stop();
+            http.end();
+            free(buffer);
+            return false;
+        }
+
+        // Return plain body to caller
+        outData = (uint8_t*)malloc(len + 1);
+        if (!outData) {
+            Serial.println("Malloc failed outData (plain).");
+            // --- Added: Force-close connection only if aborted to avoid TCP RST storms ---
+            if (stream) stream->stop();   // Force close TCP socket
+            http.end();
+            free(buffer);
+            return false;
+        }
+        memcpy(outData, buffer, len);
+        outData[len] = 0;
+        outLen = len;
+
+        http.end();
+        free(buffer);
+        return true;
+    }
+
+    // --- GZIP path (only if Content-Encoding is gzip) ---
+    if (!aborting) {
+
+        // NEW: read exactly Content-Length bytes when available (prevents partial-body timeout loops)
+        while ((http.connected() || (stream && stream->available())) && !complete && !aborting) {
+
+            size_t avail = stream ? stream->available() : 0;
+
+            if (avail == 0) {
+                // NEW: if Content-Length is known and we already read it all, stop immediately
+                if (total > 0 && (int)len >= total) {
+                    break;
+                }
+
+                if (millis() - lastData > READ_TIMEOUT) {
+                    Serial.println("TIMEOUT waiting for data!");
+                    aborting = true;   // NEW: mark abnormal exit
+                    break;
+                }
+                delay(1);
+                continue;
+            }
+
+            // NEW: safety check if buffer limit is reached
+            if (len >= capacity) {
+                Serial.println("READLIMIT reached, aborting.");
+                aborting = true;
+                break;
+            }
+
+            // NEW: if Content-Length is known, do not read beyond it
+            if (total > 0) {
+                size_t remaining = (size_t)total - len;
+                if (avail > remaining) avail = remaining;
+            }
+
+            if (len + avail > capacity)
+                avail = capacity - len;
+
+            int read = stream->readBytes(buffer + len, avail);
+            if (read <= 0) {
+                // NEW: avoid tight loop if read returns zero
+                delay(1);
+                continue;
+            }
+
+            len += (size_t)read;
+            lastData = millis();
+
+            if (DEBUGING) {Serial.printf("Read chunk: %d (total: %d)\n", read, (int)len);}
+
+            // NEW: if Content-Length is known and fully received, we can stop reading
+            if (total > 0 && (int)len >= total) {
+                break;
+            }
+        }
+
+        // NEW: only attempt gzip parse/decompress after we have a complete body (when Content-Length is known)
+        // This avoids wasting heap with repeated malloc/free and reduces fragmentation over long runtimes.
+        if (!aborting) {
+            if (total > 0 && (int)len != total) {
+                Serial.printf("GZIP response incomplete: got=%d expected=%d\n", (int)len, total);
+                aborting = true;
+            }
+        }
+
+        if (!aborting) {
+            if (len < 20) {
+                aborting = true;
+            } else {
+                int headerOffset = skipGzipHeader(buffer, len);
+                if (headerOffset < 0) {
+                    aborting = true;
+                } else {
+                    size_t deflateLen = len - (size_t)headerOffset;
+                    // GZIP trailer (CRC32 + ISIZE) is 8 bytes and not part of deflate stream.
+                    if (deflateLen >= 8) {
+                        deflateLen -= 8;
+                    }
+
+                    unsigned long srcLenForSize = (unsigned long)deflateLen;
+                    unsigned long outNeeded = 0;
+                    int sizeRes = puff(NIL, &outNeeded, buffer + headerOffset, &srcLenForSize);
+
+                    if (sizeRes != 0) {
+                        if (DEBUGING) {
+                            Serial.printf("Decompress size probe failed: res=%d src=%lu\n", sizeRes, srcLenForSize);
+                        }
+                        aborting = true;
+                    } else {
+                        uint8_t* test = (uint8_t*)malloc((size_t)outNeeded + 1);
+                        if (!test) {
+                            Serial.println("Malloc failed test buffer, aborting.");
+                            aborting = true;
+                        } else {
+                            unsigned long srcLen = (unsigned long)deflateLen;
+                            unsigned long testLen = outNeeded;
+                            int res = puff(test, &testLen, buffer + headerOffset, &srcLen);
+
+                            if (res == 0) {
+                                uint32_t trailerCrc =
+                                    (uint32_t)buffer[len - 8] |
+                                    ((uint32_t)buffer[len - 7] << 8) |
+                                    ((uint32_t)buffer[len - 6] << 16) |
+                                    ((uint32_t)buffer[len - 5] << 24);
+                                uint32_t trailerIsize =
+                                    (uint32_t)buffer[len - 4] |
+                                    ((uint32_t)buffer[len - 3] << 8) |
+                                    ((uint32_t)buffer[len - 2] << 16) |
+                                    ((uint32_t)buffer[len - 1] << 24);
+                                uint32_t calcCrc = crc32_update(0, test, (size_t)testLen);
+                                uint32_t calcIsize = (uint32_t)testLen;
+
+                                if (calcCrc != trailerCrc || calcIsize != trailerIsize) {
+                                    Serial.printf(
+                                        "GZIP CRC/ISIZE mismatch crc=%08lx/%08lx isize=%lu/%lu\n",
+                                        (unsigned long)calcCrc,
+                                        (unsigned long)trailerCrc,
+                                        (unsigned long)calcIsize,
+                                        (unsigned long)trailerIsize
+                                    );
+                                    free(test);
+                                    aborting = true;
+                                } else {
+                                    test[testLen] = 0;
+                                    if (DEBUGING) {Serial.printf("Decompress OK! Size: %lu bytes\n", testLen);}
+                                    outData = test;
+                                    outLen = (size_t)testLen;
+                                    complete = true;
+                                }
+                            } else {
+                                if (DEBUGING) {
+                                    Serial.printf("Decompress failed: res=%d out=%lu src=%lu\n", res, testLen, srcLen);
+                                }
+                                free(test);
+                                aborting = true;
+                            }
+                        }
+                    }
+                }
+            }
+        }
+    }
+
+    // --- Added: Force-close connection only if aborted to avoid TCP RST storms ---
+    if (aborting && stream) stream->stop();   // NEW: stop() only on abnormal termination
 
     http.end();
     free(buffer);
@@ -158,6 +507,18 @@ bool NetworkClient::httpGetGzip(const String& url, uint8_t*& outData, size_t& ou
 bool NetworkClient::fetchAndDecompressJson(const String& url) {
 
     _valid = false;
+    _doc.clear();
+    _imageWidth = 0;
+    _imageHeight = 0;
+    _numberPixels = 0;
+    _pictureBase64 = nullptr;
+    _pictureBase64Len = 0;
+
+    if (_jsonRaw != nullptr) {
+        free(_jsonRaw);
+        _jsonRaw = nullptr;
+        _jsonRawLen = 0;
+    }
 
     uint8_t* raw = nullptr;
     size_t rawLen = 0;
@@ -167,15 +528,38 @@ bool NetworkClient::fetchAndDecompressJson(const String& url) {
         return false;
     }
 
-    DeserializationError err = deserializeJson(_doc, raw, rawLen);
+    char* json = reinterpret_cast<char*>(raw);
-    free(raw);
+    bool ok = true;
+    ok = findJsonIntField(json, rawLen, "number_pixels", _numberPixels) && ok;
+    ok = findJsonIntField(json, rawLen, "width", _imageWidth) && ok;
+    ok = findJsonIntField(json, rawLen, "height", _imageHeight) && ok;
+    ok = extractJsonStringInPlace(json, rawLen, "picture_base64", _pictureBase64, _pictureBase64Len) && ok;
 
-    if (err) {
+    if (!ok) {
-        Serial.printf("JSON ERROR: %s\n", err.c_str());
+        Serial.println("JSON field extraction failed.");
+        free(raw);
         return false;
     }
 
-    if (DEBUGING) {Serial.println("JSON OK!");}
+    if (_imageWidth <= 0 || _imageHeight <= 0 || _pictureBase64Len == 0) {
+        Serial.printf("JSON invalid geometry/data w=%d h=%d b64=%u\n",
+                      _imageWidth,
+                      _imageHeight,
+                      (unsigned int)_pictureBase64Len);
+        free(raw);
+        return false;
+    }
+
+    _jsonRaw = raw;
+    _jsonRawLen = rawLen;
+
+    if (DEBUGING) {
+        Serial.printf("JSON fields OK: num=%d w=%d h=%d b64=%u\n",
+                      _numberPixels,
+                      _imageWidth,
+                      _imageHeight,
+                      (unsigned int)_pictureBase64Len);
+    }
     _valid = true;
     return true;
 }
@@ -184,6 +568,26 @@ JsonDocument& NetworkClient::json() {
     return _doc;
 }
 
+int NetworkClient::imageWidth() const {
+    return _imageWidth;
+}
+
+int NetworkClient::imageHeight() const {
+    return _imageHeight;
+}
+
+int NetworkClient::numberPixels() const {
+    return _numberPixels;
+}
+
+const char* NetworkClient::pictureBase64() const {
+    return _pictureBase64;
+}
+
+size_t NetworkClient::pictureBase64Len() const {
+    return _pictureBase64Len;
+}
+
 bool NetworkClient::isValid() const {
     return _valid;
 }

lib/obp60task/NetworkClient.h

@@ -3,7 +3,7 @@
 #include <WiFi.h>
 #include <HTTPClient.h>
 
-#define DEBUGING false             // Debug flag for NetworkClient for more live information
+#define DEBUGING true             // Debug flag for NetworkClient for more live information
 #define READLIMIT 200000        // HTTP read limit in byte for gzip content (can be adjusted)
 #define CONNECTIONTIMEOUT 3000  // Timeout in ms for HTTP connection 
 #define TCPREADTIMEOUT 2000     // Timeout in ms for read HTTP client stack
@@ -12,16 +12,31 @@
 class NetworkClient {
 public:
     NetworkClient(size_t reserveSize = 0);
+    ~NetworkClient();
 
     bool fetchAndDecompressJson(const String& url);
     JsonDocument& json();
+    int imageWidth() const;
+    int imageHeight() const;
+    int numberPixels() const;
+    const char* pictureBase64() const;
+    size_t pictureBase64Len() const;
     bool isValid() const;
 
 private:
     DynamicJsonDocument _doc;
     bool _valid;
+    uint8_t* _jsonRaw;
+    size_t _jsonRawLen;
+    int _imageWidth;
+    int _imageHeight;
+    int _numberPixels;
+    char* _pictureBase64;
+    size_t _pictureBase64Len;
 
     int skipGzipHeader(const uint8_t* data, size_t len);
     bool httpGetGzip(const String& url, uint8_t*& outData, size_t& outLen);
+    static bool findJsonIntField(const char* json, size_t len, const char* key, int& outValue);
+    static bool extractJsonStringInPlace(char* json, size_t len, const char* key, char*& outValue, size_t& outLen);
 };
 

lib/obp60task/OBP60Extensions.cpp

@@ -56,6 +56,61 @@ GxEPD2_BW<GxEPD2_420_SE0420NQ04, GxEPD2_420_SE0420NQ04::HEIGHT> display(GxEPD2_4
 GxEPD2_BW<GxEPD2_420_SE0420NQ04, GxEPD2_420_SE0420NQ04::HEIGHT> & getdisplay(){return display;}
 #endif
 
+#ifdef TFT_DISPLAY
+// panel device + offscreen shadow framebuffer
+static LGFX panelDisplay;
+static LGFXCanvas shadowDisplay(&panelDisplay);
+static LGFXCanvas scaleDisplay(&panelDisplay);
+static bool shadowDisplayInitialized = false;
+static bool scaleDisplayInitialized = false;
+static uint16_t scaleDisplayWidth = 0;
+static uint16_t scaleDisplayHeight = 0;
+
+LGFXCanvas & getdisplay(){return shadowDisplay;}
+LGFX & getpaneldisplay(){return panelDisplay;}
+LGFXCanvas & getscaleddisplay(){return scaleDisplay;}
+
+bool initDisplayShadowBuffer(){
+    if (shadowDisplayInitialized) return true;
+
+    shadowDisplay.setPsram(true);
+    shadowDisplay.setColorDepth(16);
+    shadowDisplay.setTextDatum(textdatum_t::baseline_left);
+
+    if (shadowDisplay.createSprite(GxEPD_WIDTH, GxEPD_HEIGHT) == nullptr) {
+        shadowDisplayInitialized = false;
+        return false;
+    }
+
+    shadowDisplay.fillScreen(GxEPD_BLACK);
+    shadowDisplayInitialized = true;
+    return true;
+}
+
+bool initDisplayScaleBuffer(uint16_t width, uint16_t height){
+    if (scaleDisplayInitialized && scaleDisplayWidth == width && scaleDisplayHeight == height) {
+        return true;
+    }
+
+    scaleDisplay.deleteSprite();
+    scaleDisplay.setPsram(true);
+    scaleDisplay.setColorDepth(16);
+    scaleDisplay.setTextDatum(textdatum_t::baseline_left);
+
+    if (scaleDisplay.createSprite(width, height) == nullptr) {
+        scaleDisplayInitialized = false;
+        scaleDisplayWidth = 0;
+        scaleDisplayHeight = 0;
+        return false;
+    }
+
+    scaleDisplayWidth = width;
+    scaleDisplayHeight = height;
+    scaleDisplayInitialized = true;
+    return true;
+}
+#endif
+
 // Horter I2C moduls
 PCF8574 pcf8574_Modul1(PCF8574_I2C_ADDR1); // First digital IO modul PCF8574 from Horter
 
@@ -86,7 +141,7 @@ void hardwareInit(GwApi *api)
     GwLog *logger = api->getLogger();
     GwConfigHandler *config = api->getConfig();
 
-    Wire.begin();
+    Wire.begin(OBP_I2C_SDA, OBP_I2C_SCL);
     // Init PCF8574 digital outputs
     Wire.setClock(I2C_SPEED_LOW);   // Set I2C clock on 10 kHz
     if(pcf8574_Modul1.begin()){        // Initialize PCF8574
@@ -175,7 +230,7 @@ void hardwareInit(GwApi *api)
 void powerInit(String powermode) {
     // Max Power | Only 5.0V | Min Power
     if (powermode == "Max Power" || powermode == "Only 5.0V") {
-#ifdef HARDWARE_V21
+#ifdef BOARD_OBP60S3
         setPortPin(OBP_POWER_50, true); // Power on 5.0V rail
 #endif
 #ifdef BOARD_OBP40S3
@@ -183,7 +238,7 @@ void powerInit(String powermode) {
         setPortPin(OBP_POWER_SD, true); // Power on SD card
 #endif
     } else { // Min Power
-#ifdef HARDWARE_V21
+#ifdef BOARD_OBP60S3
         setPortPin(OBP_POWER_50, false); // Power off 5.0V rail
 #endif
 #ifdef BOARD_OBP40S3
@@ -251,8 +306,12 @@ void deepSleep(CommonData &common){
     getdisplay().setFont(&Ubuntu_Bold8pt8b);
     getdisplay().setCursor(65, 175);
     getdisplay().print("To wake up press key and wait 5s");
-    getdisplay().nextPage();                // Update display contents
+    displayNextPage();                // Update display contents
+    #ifdef TFT_DISPLAY
+    getpaneldisplay().powerSave(true);      // Display power save
+    #else
     getdisplay().powerOff();                // Display power off
+    #endif
     setPortPin(OBP_POWER_50, false);        // Power off ePaper display
     // Stop system
     esp_deep_sleep_start();                 // Deep Sleep with weakup via touch pin
@@ -276,8 +335,12 @@ void deepSleep(CommonData &common){
     getdisplay().setFont(&Ubuntu_Bold8pt8b);
     getdisplay().setCursor(65, 175);
     getdisplay().print("To wake up press wheel and wait 5s");
-    getdisplay().nextPage();                // Partial update
+    displayNextPage();                // Partial update
+    #ifdef TFT_DISPLAY
+    getpaneldisplay().powerSave(true);      // Display power save
+    #else
     getdisplay().powerOff();                // Display power off
+    #endif
     setPortPin(OBP_POWER_EPD, false);       // Power off ePaper display
     setPortPin(OBP_POWER_SD, false);        // Power off SD card
     // Stop system
@@ -479,8 +542,10 @@ std::vector<String> wordwrap(String &line, uint16_t maxwidth) {
 void drawTextCenter(int16_t cx, int16_t cy, String text) {
     int16_t x1, y1;
     uint16_t w, h;
-    getdisplay().getTextBounds(text, 0, 150, &x1, &y1, &w, &h);
+    displayGetTextBounds(text, 0, 0, &x1, &y1, &w, &h);
-    getdisplay().setCursor(cx - w / 2, cy + h / 2);
+    int16_t cursorX = cx - (x1 + static_cast<int16_t>(w / 2));
+    int16_t cursorY = cy - (y1 + static_cast<int16_t>(h / 2));
+    getdisplay().setCursor(cursorX, cursorY);
     getdisplay().print(text);
 }
 
@@ -488,19 +553,20 @@ void drawTextCenter(int16_t cx, int16_t cy, String text) {
 void drawButtonCenter(int16_t cx, int16_t cy, int8_t sx, int8_t sy, String text, uint16_t fg, uint16_t bg, bool inverted) {
     int16_t x1, y1;
     uint16_t w, h;
-    uint16_t color;
+    displayGetTextBounds(text, 0, 0, &x1, &y1, &w, &h);
-
+    int16_t cursorX = cx - (x1 + static_cast<int16_t>(w / 2));
-    getdisplay().getTextBounds(text, cx, cy, &x1, &y1, &w, &h); // Find text center
+    int16_t cursorY = cy - (y1 + static_cast<int16_t>(h / 2));
-    getdisplay().setCursor(cx - w/2, cy + h/2);                 // Set cursor to center
     //getdisplay().drawPixel(cx, cy, fg);                         // Debug pixel for center position
     if (inverted) {
         getdisplay().fillRoundRect(cx - sx / 2, cy - sy / 2, sx, sy, 5, fg); // Draw button
         getdisplay().setTextColor(bg);
+        getdisplay().setCursor(cursorX, cursorY);                 // Set cursor to center
         getdisplay().print(text);                               // Draw text
      }
      else{
         getdisplay().drawRoundRect(cx - sx / 2, cy - sy / 2, sx, sy, 5, fg); // Draw button
         getdisplay().setTextColor(fg);
+        getdisplay().setCursor(cursorX, cursorY);                 // Set cursor to center
         getdisplay().print(text);                               // Draw text
      }
 }
@@ -509,7 +575,12 @@ void drawButtonCenter(int16_t cx, int16_t cy, int8_t sx, int8_t sy, String text,
 void drawTextRalign(int16_t x, int16_t y, String text) {
     int16_t x1, y1;
     uint16_t w, h;
+#ifdef TFT_DISPLAY
+    w = getdisplay().textWidth(text);
+    h = getdisplay().fontHeight();
+#else
     getdisplay().getTextBounds(text, 0, 150, &x1, &y1, &w, &h);
+#endif
     getdisplay().setCursor(x - w - 1, y); // '-1' required since some strings wrap around w/o it
     getdisplay().print(text);
 }
@@ -595,7 +666,7 @@ void displayHeader(CommonData &commonData, GwApi::BoatValue *date, GwApi::BoatVa
         usbRxOld = commonData.status.usbRx;
         usbTxOld = commonData.status.usbTx;
 
-#ifdef HARDWARE_V21
+#ifdef BOARD_OBP60S3
         // Display key lock status
         if (commonData.keylock) {
             getdisplay().drawXBitmap(170, 1, lock_bits, icon_width, icon_height, commonData.fgcolor);
@@ -688,7 +759,7 @@ void displayFooter(CommonData &commonData) {
     getdisplay().setFont(&Atari16px);
     getdisplay().setTextColor(commonData.fgcolor);
 
-#ifdef HARDWARE_V21
+#ifdef BOARD_OBP60S3
     // Frame around key icon area
     if (! commonData.keylock) {
         // horizontal elements
@@ -1000,7 +1071,14 @@ void displayRudderPosition(int rudderPosition, uint8_t rangeDeg, uint16_t cx, ui
         String lbl = String(angle);
         int16_t bx, by;
         uint16_t bw, bh;
-        getdisplay().getTextBounds(lbl, 0, 0, &bx, &by, &bw, &bh);
+        #ifdef TFT_DISPLAY
+            // LovyanGFX: compute width/height manually
+            bw = getdisplay().textWidth(lbl);
+            bh = getdisplay().fontHeight();
+            bx = 0; by = 0;
+        #else
+            getdisplay().getTextBounds(lbl, 0, 0, &bx, &by, &bw, &bh);
+        #endif
         int16_t tx = xpos - bw/2;
         int16_t ty = top + h + bh + 5; // A little spacing
         getdisplay().setCursor(tx, ty);
@@ -1019,9 +1097,16 @@ void doImageRequest(GwApi *api, int *pageno, const PageStruct pages[MAX_PAGE_NUM
 
     logger->logDebug(GwLog::LOG,"handle image request [%s]: %s", imgformat, filename);
 
-    uint8_t *fb = getdisplay().getBuffer(); // EPD framebuffer
+    uint8_t *fb = nullptr; // EPD framebuffer
     std::vector<uint8_t> imageBuffer;       // image in webserver transferbuffer
     String mimetype;
+    #ifndef TFT_DISPLAY
+        fb = getdisplay().getBuffer(); // available only for EPD
+    #endif
+    if (!fb) {
+        request->send(500, "text/plain", "screenshot not available");
+        return;
+    }
 
     if (imgformat == "gif") {
         // GIF is commpressed with LZW, so small

lib/obp60task/OBP60Extensions.h

@@ -5,14 +5,28 @@
 #include "OBP60Hardware.h"
 #include "LedSpiTask.h"
 #include "Graphics.h"
-#include <GxEPD2_BW.h>                  // E-paper lib V2
+#include <GxEPD2_BW.h>                  // GxEPD2 lib for b/w E-Ink displays
 #include <Adafruit_FRAM_I2C.h>          // I2C FRAM
 #include <math.h>
 
+#ifdef TFT_DISPLAY
+    #if !defined(TFT_320x480_ST7796) && !defined(TFT_320x480_ILI9488)
+        #error "TFT_DISPLAY requires one panel type: TFT_320x480_ST7796 or TFT_320x480_ILI9488"
+    #endif
+    #if defined(TFT_320x480_ST7796) && defined(TFT_320x480_ILI9488)
+        #error "Select exactly one TFT panel type: TFT_320x480_ST7796 or TFT_320x480_ILI9488"
+    #endif
+    #include <LovyanGFX.hpp>            // TFT LCD lib for 320x480 color displays
+    #undef GxEPD_WHITE
+    #define GxEPD_WHITE  TFT_WHITE      // Replacement color for white on TFT (OBPHardware.h)
+    #undef GxEPD_BLACK
+    #define GxEPD_BLACK  TFT_BLACK      // Replacement color for black on TFT (OBPHardware.h)
+#endif
+
 #ifdef BOARD_OBP40S3
-#include "esp_vfs_fat.h"
+    #include "esp_vfs_fat.h"
-#include "sdmmc_cmd.h"
+    #include "sdmmc_cmd.h"
-#define MOUNT_POINT "/sdcard"
+    #define MOUNT_POINT "/sdcard"
 #endif
 
 // FRAM address reservations 32kB: 0x0000 - 0x7FFF
@@ -74,11 +88,621 @@ GxEPD2_BW<GxEPD2_420_GYE042A87, GxEPD2_420_GYE042A87::HEIGHT> & getdisplay();
 GxEPD2_BW<GxEPD2_420_SE0420NQ04, GxEPD2_420_SE0420NQ04::HEIGHT> & getdisplay();
 #endif
 
+#ifdef TFT_DISPLAY
+// LovyanGFX based display wrapper for TFT panels
+class LGFX : public lgfx::LGFX_Device {
+public:
+  lgfx::Bus_SPI _bus_instance;
+
+  #ifdef TFT_320x480_ST7796
+  LGFX(void) {
+    {
+      auto cfg = _bus_instance.config();
+      cfg.spi_host = SPI2_HOST;
+      cfg.spi_mode = 0;
+      cfg.freq_write = 80000000;    // High speed ST7796
+      cfg.freq_read  = 16000000;
+      cfg.pin_sclk = OBP_SPI_CLK;
+      cfg.pin_mosi = OBP_SPI_DIN;
+      cfg.pin_miso = -1;
+      cfg.pin_dc   = OBP_SPI_DC;
+      _bus_instance.config(cfg);
+      _panel_instance.setBus(&_bus_instance);
+    }
+    {
+      auto cfg = _panel_instance.config();
+      cfg.pin_cs  = OBP_SPI_CS;
+      cfg.pin_rst = OBP_SPI_RST;
+      cfg.pin_busy = -1;
+      cfg.panel_width  = 320;       // Native width resolution
+      cfg.panel_height = 480;       // Native hight resolution
+      cfg.offset_x     = 0;         // No panel offset: full framebuffer mapping
+      cfg.offset_y     = 0;         // No panel offset: full framebuffer mapping
+      cfg.offset_rotation = 3;      // Rotate display content conter clock wise 90 deg ST7796
+      cfg.dummy_read_pixel = 8;
+      cfg.dummy_read_bits  = 1;
+      cfg.memory_width     = 320;
+      cfg.memory_height    = 480;
+      // cfg.pwm_control not available in this LovyanGFX version
+      cfg.invert = false;
+      cfg.rgb_order = false;
+      cfg.dlen_16bit = false;
+      cfg.bus_shared = true;
+      _panel_instance.config(cfg);
+    }
+        // No dedicated TFT PWM backlight pin configured on this board.
+        // Keep backlight handling outside LovyanGFX to avoid LEDC init on invalid GPIO.
+    setPanel(&_panel_instance);
+        // Match Adafruit GFX cursor semantics: y coordinate is text baseline.
+        setTextDatum(textdatum_t::baseline_left);
+  }
+  #endif
+
+  #ifdef TFT_320x480_ILI9488
+  LGFX(void) {
+    {
+      auto cfg = _bus_instance.config();
+      cfg.spi_host = SPI2_HOST;
+      cfg.spi_mode = 0;
+      cfg.freq_write = 40000000;    // Slow speed ILI9488
+      cfg.freq_read  = 16000000;
+      cfg.pin_sclk = OBP_SPI_CLK;
+      cfg.pin_mosi = OBP_SPI_DIN;
+      cfg.pin_miso = -1;
+      cfg.pin_dc   = OBP_SPI_DC;
+      _bus_instance.config(cfg);
+      _panel_instance.setBus(&_bus_instance);
+    }
+    {
+      auto cfg = _panel_instance.config();
+      cfg.pin_cs  = OBP_SPI_CS;
+      cfg.pin_rst = OBP_SPI_RST;
+      cfg.pin_busy = -1;
+      cfg.panel_width  = 320;       // Native width resolution
+      cfg.panel_height = 480;       // Native hight resolution
+      cfg.offset_x     = 0;         // No panel offset: full framebuffer mapping
+      cfg.offset_y     = 0;         // No panel offset: full framebuffer mapping
+      cfg.offset_rotation = 1;      // Rotate display content clock wise 90 deg ILI9488
+      cfg.dummy_read_pixel = 8;
+      cfg.dummy_read_bits  = 1;
+      cfg.memory_width     = 320;
+      cfg.memory_height    = 480;
+      // cfg.pwm_control not available in this LovyanGFX version
+      cfg.invert = false;
+      cfg.rgb_order = false;
+      cfg.dlen_16bit = false;
+      cfg.bus_shared = true;
+      _panel_instance.config(cfg);
+    }
+        // No dedicated TFT PWM backlight pin configured on this board.
+        // Keep backlight handling outside LovyanGFX to avoid LEDC init on invalid GPIO.
+    setPanel(&_panel_instance);
+        // Match Adafruit GFX cursor semantics: y coordinate is text baseline.
+        setTextDatum(textdatum_t::baseline_left);
+  }
+  #endif
+
+  // compatibility helpers --------------------------------------------------
+    using lgfx::LGFX_Device::setFont;
+    void setFont(const lgfx::IFont* font) {
+        _currentAdfFont = nullptr;
+        lgfx::LGFX_Device::setFont(font);
+    }
+    // Adafruit GFX fonts support on TFT via LovyanGFX bridge
+    void setFont(const GFXfont *font) {
+        if (font == nullptr) {
+            _currentAdfFont = nullptr;
+            lgfx::LGFX_Device::setFont(nullptr);
+            return;
+        }
+
+        if (font->glyph == nullptr || font->bitmap == nullptr || font->last < font->first) {
+            _currentAdfFont = nullptr;
+            lgfx::LGFX_Device::setFont(nullptr);
+            return;
+        }
+
+        const uint16_t glyphCount = static_cast<uint16_t>(font->last - font->first + 1);
+        if (glyphCount == 0) {
+            lgfx::LGFX_Device::setFont(nullptr);
+            return;
+        }
+
+        if (_adfGlyphCount != glyphCount || _adfGlyphBridge == nullptr) {
+            if (_adfGlyphBridge != nullptr) {
+                free(_adfGlyphBridge);
+                _adfGlyphBridge = nullptr;
+                _adfGlyphCount = 0;
+            }
+            _adfGlyphBridge = static_cast<lgfx::GFXglyph*>(malloc(sizeof(lgfx::GFXglyph) * glyphCount));
+            if (_adfGlyphBridge == nullptr) {
+                lgfx::LGFX_Device::setFont(nullptr);
+                return;
+            }
+            _adfGlyphCount = glyphCount;
+        }
+
+        for (uint16_t index = 0; index < glyphCount; ++index) {
+            _adfGlyphBridge[index].bitmapOffset = font->glyph[index].bitmapOffset;
+            _adfGlyphBridge[index].width = font->glyph[index].width;
+            _adfGlyphBridge[index].height = font->glyph[index].height;
+            _adfGlyphBridge[index].xAdvance = font->glyph[index].xAdvance;
+            _adfGlyphBridge[index].xOffset = font->glyph[index].xOffset;
+            _adfGlyphBridge[index].yOffset = font->glyph[index].yOffset;
+        }
+
+        _adfFontBridge = lgfx::GFXfont(
+            const_cast<uint8_t*>(font->bitmap),
+            _adfGlyphBridge,
+            font->first,
+            font->last,
+            font->yAdvance
+        );
+        _currentAdfFont = font;
+        lgfx::LGFX_Device::setFont(&_adfFontBridge);
+    }
+
+    void getTextBounds(const String &txt, int16_t x, int16_t y,
+                                         int16_t *x0, int16_t *y0,
+                                         uint16_t *w, uint16_t *h) {
+        if (w == nullptr || h == nullptr) {
+            return;
+        }
+        if (_currentAdfFont == nullptr || txt.length() == 0) {
+            *w = textWidth(txt);
+            *h = fontHeight();
+            if (x0) *x0 = x;
+            if (y0) *y0 = y - static_cast<int16_t>(*h);
+            return;
+        }
+
+        const float sx = getTextSizeX();
+        const float sy = getTextSizeY();
+
+        int32_t cursorX = x;
+        int32_t cursorY = y;
+        int32_t minX = 0;
+        int32_t minY = 0;
+        int32_t maxX = 0;
+        int32_t maxY = 0;
+        bool hasPixel = false;
+
+        for (size_t i = 0; i < txt.length(); ++i) {
+            char c = txt[i];
+            if (c == '\r') continue;
+            if (c == '\n') {
+                cursorX = x;
+                cursorY += static_cast<int32_t>(_currentAdfFont->yAdvance * sy);
+                continue;
+            }
+            if (c < _currentAdfFont->first || c > _currentAdfFont->last) {
+                continue;
+            }
+
+            const GFXglyph* glyph = &_currentAdfFont->glyph[static_cast<uint16_t>(c) - _currentAdfFont->first];
+            const int32_t gw = static_cast<int32_t>(glyph->width * sx);
+            const int32_t gh = static_cast<int32_t>(glyph->height * sy);
+            const int32_t gx1 = cursorX + static_cast<int32_t>(glyph->xOffset * sx);
+            const int32_t gy1 = cursorY + static_cast<int32_t>(glyph->yOffset * sy);
+
+            if (gw > 0 && gh > 0) {
+                const int32_t gx2 = gx1 + gw - 1;
+                const int32_t gy2 = gy1 + gh - 1;
+                if (!hasPixel) {
+                    minX = gx1; minY = gy1; maxX = gx2; maxY = gy2;
+                    hasPixel = true;
+                } else {
+                    if (gx1 < minX) minX = gx1;
+                    if (gy1 < minY) minY = gy1;
+                    if (gx2 > maxX) maxX = gx2;
+                    if (gy2 > maxY) maxY = gy2;
+                }
+            }
+            cursorX += static_cast<int32_t>(glyph->xAdvance * sx);
+        }
+
+        if (hasPixel) {
+            if (x0) *x0 = static_cast<int16_t>(minX);
+            if (y0) *y0 = static_cast<int16_t>(minY);
+            *w = static_cast<uint16_t>(maxX - minX + 1);
+            *h = static_cast<uint16_t>(maxY - minY + 1);
+        } else {
+            if (x0) *x0 = x;
+            if (y0) *y0 = y;
+            *w = 0;
+            *h = 0;
+        }
+    }
+  // E-Ink interface compatibility
+  void setFullWindow() { /* no-op on TFT */ }
+
+    // Runtime panel offset control for TFT panels
+    void setPanelOffset(int16_t x, int16_t y) {
+            auto cfg = _panel_instance.config();
+            cfg.offset_x = x;
+            cfg.offset_y = y;
+            _panel_instance.config(cfg);
+    }
+
+    void getPanelOffset(int16_t &x, int16_t &y) {
+            auto cfg = _panel_instance.config();
+            x = cfg.offset_x;
+            y = cfg.offset_y;
+    }
+
+private:
+    lgfx::GFXfont _adfFontBridge { nullptr, nullptr, 0, 0, 0 };
+    lgfx::GFXglyph* _adfGlyphBridge = nullptr;
+    uint16_t _adfGlyphCount = 0;
+    const GFXfont* _currentAdfFont = nullptr;
+    #if defined(TFT_320x480_ST7796)
+    lgfx::Panel_ST7796 _panel_instance;
+    #elif defined(TFT_320x480_ILI9488)
+    lgfx::Panel_ILI9488 _panel_instance;
+    #endif
+};
+
+class LGFXCanvas : public lgfx::LGFX_Sprite {
+public:
+    explicit LGFXCanvas(lgfx::LGFX_Device* parent = nullptr) : lgfx::LGFX_Sprite(parent) {}
+
+    using lgfx::LGFX_Sprite::setFont;
+    void setFont(const GFXfont *font) {
+        if (font == nullptr) {
+            _currentAdfFont = nullptr;
+            lgfx::LGFX_Sprite::setFont(nullptr);
+            return;
+        }
+
+        if (font->glyph == nullptr || font->bitmap == nullptr || font->last < font->first) {
+            _currentAdfFont = nullptr;
+            lgfx::LGFX_Sprite::setFont(nullptr);
+            return;
+        }
+
+        const uint16_t glyphCount = static_cast<uint16_t>(font->last - font->first + 1);
+        if (glyphCount == 0) {
+            lgfx::LGFX_Sprite::setFont(nullptr);
+            return;
+        }
+
+        if (_adfGlyphCount != glyphCount || _adfGlyphBridge == nullptr) {
+            if (_adfGlyphBridge != nullptr) {
+                free(_adfGlyphBridge);
+                _adfGlyphBridge = nullptr;
+                _adfGlyphCount = 0;
+            }
+            _adfGlyphBridge = static_cast<lgfx::GFXglyph*>(malloc(sizeof(lgfx::GFXglyph) * glyphCount));
+            if (_adfGlyphBridge == nullptr) {
+                lgfx::LGFX_Sprite::setFont(nullptr);
+                return;
+            }
+            _adfGlyphCount = glyphCount;
+        }
+
+        for (uint16_t index = 0; index < glyphCount; ++index) {
+            _adfGlyphBridge[index].bitmapOffset = font->glyph[index].bitmapOffset;
+            _adfGlyphBridge[index].width = font->glyph[index].width;
+            _adfGlyphBridge[index].height = font->glyph[index].height;
+            _adfGlyphBridge[index].xAdvance = font->glyph[index].xAdvance;
+            _adfGlyphBridge[index].xOffset = font->glyph[index].xOffset;
+            _adfGlyphBridge[index].yOffset = font->glyph[index].yOffset;
+        }
+
+        _adfFontBridge = lgfx::GFXfont(
+            const_cast<uint8_t*>(font->bitmap),
+            _adfGlyphBridge,
+            font->first,
+            font->last,
+            font->yAdvance
+        );
+        _currentAdfFont = font;
+        lgfx::LGFX_Sprite::setFont(&_adfFontBridge);
+    }
+
+    void getTextBounds(const String &txt, int16_t x, int16_t y,
+                       int16_t *x0, int16_t *y0,
+                       uint16_t *w, uint16_t *h) {
+        if (w == nullptr || h == nullptr) {
+            return;
+        }
+        if (_currentAdfFont == nullptr || txt.length() == 0) {
+            *w = textWidth(txt);
+            *h = fontHeight();
+            if (x0) *x0 = x;
+            if (y0) *y0 = y - static_cast<int16_t>(*h);
+            return;
+        }
+
+        const float sx = getTextSizeX();
+        const float sy = getTextSizeY();
+
+        int32_t cursorX = x;
+        int32_t cursorY = y;
+        int32_t minX = 0;
+        int32_t minY = 0;
+        int32_t maxX = 0;
+        int32_t maxY = 0;
+        bool hasPixel = false;
+
+        for (size_t i = 0; i < txt.length(); ++i) {
+            char c = txt[i];
+            if (c == '\r') continue;
+            if (c == '\n') {
+                cursorX = x;
+                cursorY += static_cast<int32_t>(_currentAdfFont->yAdvance * sy);
+                continue;
+            }
+            if (c < _currentAdfFont->first || c > _currentAdfFont->last) {
+                continue;
+            }
+
+            const GFXglyph* glyph = &_currentAdfFont->glyph[static_cast<uint16_t>(c) - _currentAdfFont->first];
+            const int32_t gw = static_cast<int32_t>(glyph->width * sx);
+            const int32_t gh = static_cast<int32_t>(glyph->height * sy);
+            const int32_t gx1 = cursorX + static_cast<int32_t>(glyph->xOffset * sx);
+            const int32_t gy1 = cursorY + static_cast<int32_t>(glyph->yOffset * sy);
+
+            if (gw > 0 && gh > 0) {
+                const int32_t gx2 = gx1 + gw - 1;
+                const int32_t gy2 = gy1 + gh - 1;
+                if (!hasPixel) {
+                    minX = gx1; minY = gy1; maxX = gx2; maxY = gy2;
+                    hasPixel = true;
+                } else {
+                    if (gx1 < minX) minX = gx1;
+                    if (gy1 < minY) minY = gy1;
+                    if (gx2 > maxX) maxX = gx2;
+                    if (gy2 > maxY) maxY = gy2;
+                }
+            }
+            cursorX += static_cast<int32_t>(glyph->xAdvance * sx);
+        }
+
+        if (hasPixel) {
+            if (x0) *x0 = static_cast<int16_t>(minX);
+            if (y0) *y0 = static_cast<int16_t>(minY);
+            *w = static_cast<uint16_t>(maxX - minX + 1);
+            *h = static_cast<uint16_t>(maxY - minY + 1);
+        } else {
+            if (x0) *x0 = x;
+            if (y0) *y0 = y;
+            *w = 0;
+            *h = 0;
+        }
+    }
+
+    void setFullWindow() { /* no-op on TFT */ }
+
+private:
+    lgfx::GFXfont _adfFontBridge { nullptr, nullptr, 0, 0, 0 };
+    lgfx::GFXglyph* _adfGlyphBridge = nullptr;
+    uint16_t _adfGlyphCount = 0;
+    const GFXfont* _currentAdfFont = nullptr;
+};
+
+LGFXCanvas & getdisplay();
+LGFX & getpaneldisplay();
+LGFXCanvas & getscaleddisplay();
+bool initDisplayShadowBuffer();
+bool initDisplayScaleBuffer(uint16_t width, uint16_t height);
+#endif
+
 // Page display return values
 #define PAGE_OK 0          // all ok, do nothing
 #define PAGE_UPDATE 1      // page wants display to update
 #define PAGE_HIBERNATE 2   // page wants displey to hibernate
 
+#ifdef TFT_DISPLAY
+#ifndef OBP_TFT_ENABLE_SCALING
+#define OBP_TFT_ENABLE_SCALING 1
+#endif
+
+#ifndef OBP_TFT_SCALE_ANTIALIAS
+#define OBP_TFT_SCALE_ANTIALIAS 1
+#endif
+
+#if OBP_TFT_SCALE_ANTIALIAS
+inline uint16_t lerpRgb565(uint16_t c0, uint16_t c1, uint16_t w8) {
+    const uint16_t r0 = (c0 >> 11) & 0x1F;
+    const uint16_t g0 = (c0 >> 5)  & 0x3F;
+    const uint16_t b0 = c0 & 0x1F;
+
+    const uint16_t r1 = (c1 >> 11) & 0x1F;
+    const uint16_t g1 = (c1 >> 5)  & 0x3F;
+    const uint16_t b1 = c1 & 0x1F;
+
+    const uint16_t r = static_cast<uint16_t>(r0 + ((static_cast<int32_t>(r1) - r0) * w8 + 128) / 256);
+    const uint16_t g = static_cast<uint16_t>(g0 + ((static_cast<int32_t>(g1) - g0) * w8 + 128) / 256);
+    const uint16_t b = static_cast<uint16_t>(b0 + ((static_cast<int32_t>(b1) - b0) * w8 + 128) / 256);
+
+    return static_cast<uint16_t>((r << 11) | (g << 5) | b);
+}
+
+inline uint16_t sampleBilinearRgb565(LGFXCanvas& src, uint16_t x0, uint16_t y0, uint16_t x1, uint16_t y1, uint16_t wx, uint16_t wy) {
+    const uint16_t c00 = src.readPixel(x0, y0);
+    const uint16_t c10 = src.readPixel(x1, y0);
+    const uint16_t c01 = src.readPixel(x0, y1);
+    const uint16_t c11 = src.readPixel(x1, y1);
+
+    const uint16_t top = lerpRgb565(c00, c10, wx);
+    const uint16_t bot = lerpRgb565(c01, c11, wx);
+    return lerpRgb565(top, bot, wy);
+}
+#endif
+#endif
+
+// Draw monochrome bitmap on both E-Ink and TFT displays
+// supports various packing and bit orders; optional runtime conversion for TFT
+inline void drawMonochromeBitmap(
+    int16_t x, int16_t y,
+    const uint8_t *bmp,
+    int16_t w, int16_t h,
+    uint16_t color,
+    bool vertical=false,    // true: bytes run vertically (each byte 8 pixels down)
+    bool lsbFirst=false,    // true: least significant bit = left/top pixel
+    bool mirrorX=false)      // true: bytes run right-to-left within each row
+{
+    #ifdef TFT_DISPLAY
+    // TFT converts per‑pixel
+    int bytesPerRow = (w + 7) / 8;
+    for (int yy = 0; yy < h; yy++) {
+        for (int xx = 0; xx < w; xx++) {
+            int byteIdx;
+            int bitIdx;
+            if (vertical) {
+                // vertical packing: column-major bytes
+                int col = mirrorX ? (w - 1 - xx) : xx;
+                byteIdx = col * ((h + 7) / 8) + (yy / 8);
+                bitIdx  = yy % 8;
+            } else {
+                // horizontal packing: row-major bytes
+                int col = mirrorX ? (w - 1 - xx) : xx;
+                byteIdx = yy * bytesPerRow + (col / 8);
+                bitIdx  = col % 8;
+            }
+            uint8_t b = bmp[byteIdx];
+            bool pix;
+            if (lsbFirst) {
+                pix = b & (1 << bitIdx);
+            } else {
+                pix = b & (1 << (7 - bitIdx));
+            }
+            if (pix) {
+                getdisplay().drawPixel(x + xx, y + yy, color);
+            }
+        }
+        if ((yy & 0x0F) == 0) {
+            yield();
+        }
+    }
+    #else
+    // E‑Paper: just hand over to driver (expects MSB‑first horizontal)
+    getdisplay().drawBitmap(x, y, bmp, w, h, color);
+    #endif
+}
+
+
+// Display wrapper functions for E-Ink/TFT compatibility
+
+// generic bitmap draw that accepts 1‑bit data; TFT version
+// forwards to drawMonochromeBitmap whereas EPD uses native drawBitmap
+inline void displayDrawBitmap(int16_t x, int16_t y,
+                              const uint8_t *bmp,
+                              int16_t w, int16_t h,
+                              uint16_t color) {
+    #ifdef TFT_DISPLAY
+    drawMonochromeBitmap(x, y, bmp, w, h, color);
+    #else
+    getdisplay().drawBitmap(x, y, bmp, w, h, color);
+    #endif
+}
+
+inline void displayFirstPage() {
+    #ifdef TFT_DISPLAY
+    initDisplayShadowBuffer();
+    #else
+    getdisplay().firstPage();
+    #endif
+}
+
+inline void displayNextPage() {
+    #ifdef TFT_DISPLAY
+    if (initDisplayShadowBuffer()) {
+        LGFXCanvas &src = getdisplay();
+        LGFX &dst = getpaneldisplay();
+
+        const uint16_t srcW = GxEPD_WIDTH;
+        const uint16_t srcH = GxEPD_HEIGHT;
+        const uint16_t dstW = static_cast<uint16_t>(dst.width());
+        const uint16_t dstH = static_cast<uint16_t>(dst.height());
+
+        #if !OBP_TFT_ENABLE_SCALING
+        const uint16_t drawX = static_cast<uint16_t>((dstW > srcW) ? ((dstW - srcW) / 2U) : 0U);
+        const uint16_t drawY = static_cast<uint16_t>((dstH > srcH) ? ((dstH - srcH) / 2U) : 0U);
+        src.pushSprite(drawX, drawY);
+        #else
+
+        const uint16_t targetH = (dstH < 320U) ? dstH : 320U;
+        const uint32_t scaledW32 = (static_cast<uint32_t>(srcW) * targetH + (srcH / 2U)) / srcH;
+        const uint16_t targetW = static_cast<uint16_t>((scaledW32 < dstW) ? scaledW32 : dstW);
+
+        const uint16_t drawX = static_cast<uint16_t>((dstW - targetW) / 2U);
+        const uint16_t drawY = static_cast<uint16_t>((dstH - targetH) / 2U);
+
+        const uint16_t borderColor = src.readPixel(0, 0);
+        if (initDisplayScaleBuffer(dstW, dstH)) {
+            LGFXCanvas &scaled = getscaleddisplay();
+            scaled.fillScreen(borderColor);
+
+            for (uint16_t y = 0; y < targetH; ++y) {
+                const uint32_t syfp = (targetH > 1)
+                                        ? (static_cast<uint32_t>(y) * (srcH - 1) * 256U) / (targetH - 1)
+                                        : 0;
+                const uint16_t sy0 = static_cast<uint16_t>(syfp >> 8);
+                const uint16_t sy1 = (sy0 + 1 < srcH) ? static_cast<uint16_t>(sy0 + 1) : sy0;
+                const uint16_t wy  = static_cast<uint16_t>(syfp & 0xFFU);
+
+                for (uint16_t x = 0; x < targetW; ++x) {
+                    const uint32_t sxfp = (targetW > 1)
+                                            ? (static_cast<uint32_t>(x) * (srcW - 1) * 256U) / (targetW - 1)
+                                            : 0;
+                    const uint16_t sx0 = static_cast<uint16_t>(sxfp >> 8);
+                    const uint16_t sx1 = (sx0 + 1 < srcW) ? static_cast<uint16_t>(sx0 + 1) : sx0;
+
+                    #if OBP_TFT_SCALE_ANTIALIAS
+                    const uint16_t wx = static_cast<uint16_t>(sxfp & 0xFFU);
+                    const uint16_t color = sampleBilinearRgb565(src, sx0, sy0, sx1, sy1, wx, wy);
+                    #else
+                    const uint16_t color = src.readPixel(sx0, sy0);
+                    #endif
+
+                    scaled.drawPixel(drawX + x, drawY + y, color);
+                }
+                if ((y & 0x0F) == 0) {
+                    yield();
+                }
+            }
+
+            scaled.pushSprite(0, 0);
+        } else {
+            src.pushSprite(drawX, drawY);
+        }
+        #endif
+    }
+    #else
+    getdisplay().nextPage();
+    #endif
+}
+
+inline void displaySetPartialWindow(uint16_t x, uint16_t y, uint16_t w, uint16_t h) {
+    #ifdef TFT_DISPLAY
+    // TFT LCD doesn't use partial windows
+    (void)x; (void)y; (void)w; (void)h;
+    #else
+    getdisplay().setPartialWindow(x, y, w, h);
+    #endif
+}
+
+inline void displaySetFullWindow() {
+    #ifdef TFT_DISPLAY
+    // TFT LCD doesn't need setFullWindow()
+    #else
+    getdisplay().setFullWindow();
+    #endif
+}
+
+// replacement for getTextBounds that works with both EPD and TFT
+inline void displayGetTextBounds(const String &txt, int16_t x, int16_t y,
+                                 int16_t *x0, int16_t *y0,
+                                 uint16_t *w, uint16_t *h) {
+#ifdef TFT_DISPLAY
+    getdisplay().getTextBounds(txt, x, y, x0, y0, w, h);
+#else
+    getdisplay().getTextBounds(txt, x, y, x0, y0, w, h);
+#endif
+}
+
 void fillPoly4(const std::vector<Point>& p4, uint16_t color);
 void drawPoly(const std::vector<Point>& points, uint16_t color);
 

lib/obp60task/OBP60Hardware.h

@@ -1,7 +1,7 @@
     // General hardware definitions
     // CAN and RS485 bus pin definitions see obp60task.h
 
-#if defined HARDWARE_V20 || HARDWARE_V21
+#if defined BOARD_OBP60S3 || defined BOARD_OBP70S3
     // Direction pin for RS485 NMEA0183
     #define OBP_DIRECTION_PIN 18
     // I2C
@@ -34,13 +34,17 @@
     #define PCF8574_I2C_ADDR1 0x20  // First digital out module
     // FRAM (e.g. MB85RC256V)
     #define FRAM_I2C_ADDR 0x50
-    // SPI (E-Ink display, Extern Bus)
+    // SPI (E-paper display, TFT display Extern Bus)
     #define OBP_SPI_CS 39
     #define OBP_SPI_DC 40
     #define OBP_SPI_RST 41
     #define OBP_SPI_BUSY 42
     #define OBP_SPI_CLK 38
     #define OBP_SPI_DIN 48
+    #define OBP_TFT_OFFSET_X 10   // ST7796, ILI9488 operating x-offset for centered 400x300 content
+    #define OBP_TFT_OFFSET_Y -20  // ST7796, ILI9488 operating y-offset for centered 400x300 content
+    #define TFT_BLACK 0x0109      // Replacement color for black on TFT (RGB565)
+    #define TFT_WHITE 0xFFFF      // Replacement color for white on TFT (RGB565)
     #define SHOW_TIME 6000        // Show time in [ms] for logo and WiFi QR code
     #define FULL_REFRESH_TIME 600 // Refresh cycle time in [s][600...3600] for full display update (very important healcy function)
     #define GxEPD_WIDTH 400       // Display width

lib/obp60task/OBP60Keypad.h

@@ -58,7 +58,7 @@ void initKeys(CommonData &commonData) {
     commonData.keydata[5].h = height;
 }
 
-  #if defined HARDWARE_V20 || HARDWARE_V21
+  #ifdef BOARD_OBP60S3
   // Keypad functions for original OBP60 hardware
   int readKeypad(GwLog* logger, uint thSensitivity, bool use_syspage) {
     

lib/obp60task/OBP60QRWiFi.h

@@ -39,7 +39,7 @@ void qrWiFi(String ssid, String passwd, uint16_t fgcolor, uint16_t bgcolor){
   getdisplay().setTextColor(fgcolor);
   getdisplay().setCursor(140, 285);
   getdisplay().print("WiFi");
-  getdisplay().nextPage();                 // Full Refresh
+  displayNextPage();                 // Full Refresh
 }
 
 #endif

lib/obp60task/OBPDataOperations.cpp

@@ -1,5 +1,4 @@
 #include "OBPDataOperations.h"
-//#include "BoatDataCalibration.h" // Functions lib for data instance calibration
 
 // --- Class CalibrationData ---------------
 CalibrationData::CalibrationData(GwLog* log)
@@ -155,8 +154,7 @@ bool CalibrationData::calibrateInstance(GwApi::BoatValue* boatDataValue)
 
     if (format == "formatWind") { // instance is of type angle
         dataValue = (dataValue * slope) + offset;
-        // dataValue = WindUtils::toPI(dataValue);
+        dataValue = WindUtils::to2PI(dataValue); // wind angle data is stored in [0..2PI] format
-        dataValue = WindUtils::to2PI(dataValue); // we should call <toPI> for format of [-180..180], but pages cannot display negative values properly yet
 
     } else if (format == "formatCourse") { // instance is of type direction
         dataValue = (dataValue * slope) + offset;
@@ -169,7 +167,6 @@ bool CalibrationData::calibrateInstance(GwApi::BoatValue* boatDataValue)
         dataValue = (dataValue * slope) + offset;
     }
 
-
     boatDataValue->value = dataValue; // update boat data value with calibrated value
     calibrationMap[instance].value = dataValue; // store the calibrated value in the list
     calibrationMap[instance].isCalibrated = true;
@@ -247,23 +244,15 @@ void HstryBuf::add(double value)
 
 void HstryBuf::handle(bool useSimuData, CommonData& common)
 {
-    // GwApi::BoatValue* tmpBVal;
     std::unique_ptr<GwApi::BoatValue> tmpBVal; // Temp variable to get formatted and converted data value from OBP60Formatter
 
-    // create temporary boat value for calibration purposes and retrieval of simulation value
-    // tmpBVal = new GwApi::BoatValue(boatDataName.c_str());
-    tmpBVal = std::unique_ptr<GwApi::BoatValue>(new GwApi::BoatValue(boatDataName));
-    tmpBVal->setFormat(boatValue->getFormat());
-    tmpBVal->value = boatValue->value;
-    tmpBVal->valid = boatValue->valid;
-
     if (boatValue->valid) {
-        // Calibrate boat value before adding it to history buffer
-        //calibrationData.calibrateInstance(tmpBVal.get(), logger);
-        //add(tmpBVal->value);
         add(boatValue->value);
-
     } else if (useSimuData) { // add simulated value to history buffer
+        tmpBVal = std::unique_ptr<GwApi::BoatValue>(new GwApi::BoatValue(boatDataName)); // create temporary boat value for retrieval of simulation value
+        tmpBVal->setFormat(boatValue->getFormat());
+        tmpBVal->value = boatValue->value;
+        tmpBVal->valid = boatValue->valid;
         double simSIValue = formatValue(tmpBVal.get(), common).value; // simulated value is generated at <formatValue>; here: retreive SI value
         add(simSIValue);
     } else {
@@ -276,20 +265,7 @@ void HstryBuf::handle(bool useSimuData, CommonData& common)
 HstryBuffers::HstryBuffers(int size, BoatValueList* boatValues, GwLog* log)
     : size(size)
     , boatValueList(boatValues)
-    , logger(log)
+    , logger(log) { };
-{
-
-    // collect boat values for true wind calculation
-    // should all have been already created at true wind object initialization
-    // potentially to be moved to history buffer handling
-    awaBVal = boatValueList->findValueOrCreate("AWA");
-    hdtBVal = boatValueList->findValueOrCreate("HDT");
-    hdmBVal = boatValueList->findValueOrCreate("HDM");
-    varBVal = boatValueList->findValueOrCreate("VAR");
-    cogBVal = boatValueList->findValueOrCreate("COG");
-    sogBVal = boatValueList->findValueOrCreate("SOG");
-    awdBVal = boatValueList->findValueOrCreate("AWD");
-}
 
 // Create history buffer for boat data type
 void HstryBuffers::addBuffer(const String& name)
@@ -301,8 +277,6 @@ void HstryBuffers::addBuffer(const String& name)
         return;
     }
 
-    hstryBuffers[name] = std::unique_ptr<HstryBuf>(new HstryBuf(name, size, boatValueList, logger));
-
     // Initialize metadata for buffer
     String valueFormat = bufferParams[name].format; // Data format of boat data type
     // String valueFormat = boatValueList->findValueOrCreate(name)->getFormat().c_str(); // Unfortunately, format is not yet available during system initialization
@@ -311,6 +285,7 @@ void HstryBuffers::addBuffer(const String& name)
     double bufferMinVal = bufferParams[name].bufferMinVal; // Min value for this history buffer
     double bufferMaxVal = bufferParams[name].bufferMaxVal; // Max value for this history buffer
 
+    hstryBuffers[name] = std::unique_ptr<HstryBuf>(new HstryBuf(name, size, boatValueList, logger));
     hstryBuffers[name]->init(valueFormat, hstryUpdFreq, mltplr, bufferMinVal, bufferMaxVal);
     LOG_DEBUG(GwLog::DEBUG, "HstryBuffers: new buffer added: name: %s, format: %s, multiplier: %d, min value: %.2f, max value: %.2f", name, valueFormat, mltplr, bufferMinVal, bufferMaxVal);
 }
@@ -329,8 +304,9 @@ RingBuffer<uint16_t>* HstryBuffers::getBuffer(const String& name)
     auto it = hstryBuffers.find(name);
     if (it != hstryBuffers.end()) {
         return &it->second->hstryBuf;
+    } else {
+        return nullptr;
     }
-    return nullptr;
 }
 // --- End Class HstryBuffers ---------------
 
@@ -396,56 +372,75 @@ void WindUtils::addPolar(const double* phi1, const double* r1,
     toPol(&x1, &y1, phi, r);
 }
 
-void WindUtils::calcTwdSA(const double* AWA, const double* AWS,
+void WindUtils::calcTwdSA(const double* AWA, const double* AWS, const double* AWD, const double* CTW, const double* STW, const double* HDT,
-    const double* CTW, const double* STW, const double* HDT,
+    double* TWA, double* TWS, double* TWD)
-    double* TWD, double* TWS, double* TWA, double* AWD)
 {
-    *AWD = *AWA + *HDT;
-    *AWD = to2PI(*AWD);
     double stw = -*STW;
     addPolar(AWD, AWS, CTW, &stw, TWD, TWS);
 
-    // Normalize TWD to [0..360°] (2PI) and TWA to [-180..180] (PI)
+    // Normalize to [0..2PI]
     *TWD = to2PI(*TWD);
-    *TWA = toPI(*TWD - *HDT);
+    *TWA = to2PI(*TWD - *HDT); // for internal storage we normalize wind angle to [0..2PI], as well
 }
 
-double WindUtils::calcHDT(const double* hdmVal, const double* varVal, const double* cogVal, const double* sogVal)
+// calculate HDT from either HDM + VAR, HDM only, or COG
+bool WindUtils::calcHDT(const double* hdmVal, const double* varVal, const double* cogVal, const double* sogVal, double* hdtVal)
 {
-    double hdt;
-    double minSogVal = 0.1; // SOG below this value (m/s) is assumed to be  data noise from GPS sensor
-
-    if (*hdmVal != DBL_MAX) {
-        hdt = *hdmVal + (*varVal != DBL_MAX ? *varVal : 0.0); // Use corrected HDM if HDT is not available (or just HDM if VAR is not available)
-        hdt = to2PI(hdt);
-    } else if (*cogVal != DBL_MAX && *sogVal >= minSogVal) {
-        hdt = *cogVal; // Use COG as fallback if HDT and HDM are not available, and SOG is not data noise
-    } else {
-        hdt = DBL_MAX; // Cannot calculate HDT without valid HDM or HDM+VAR or COG
-    }
-
-    return hdt;
-}
-
-bool WindUtils::calcWinds(const double* awaVal, const double* awsVal,
-    const double* cogVal, const double* stwVal, const double* sogVal, const double* hdtVal,
-    const double* hdmVal, const double* varVal, double* twdVal, double* twsVal, double* twaVal, double* awdVal)
-{
-    double stw, hdt, ctw;
-    double twd, tws, twa, awd;
     double minSogVal = 0.1; // SOG below this value (m/s) is assumed to be  data noise from GPS sensor
 
     if (*hdtVal != DBL_MAX) {
-        hdt = *hdtVal; // Use HDT if available
+        // HDT already available-> nothing to do
+        return true;
+    }
+
+    if (*hdmVal != DBL_MAX) {
+        *hdtVal = *hdmVal + (*varVal != DBL_MAX ? *varVal : 0.0); // Use corrected HDM if HDT is not available (or just HDM if VAR is not available)
+        *hdtVal = to2PI(*hdtVal);
+    } else if (*cogVal != DBL_MAX && *sogVal >= minSogVal) {
+        *hdtVal = *cogVal; // Use COG as fallback if HDT and HDM are not available, and SOG is not data noise
     } else {
-        hdt = calcHDT(hdmVal, varVal, cogVal, sogVal);
+        *hdtVal = DBL_MAX; // Cannot calculate HDT without valid HDM or HDM+VAR or COG
+        return false;
+    }
+    // LOG_DEBUG(GwLog::DEBUG, "WindUtils:calcHDT: HDT: %.1f, HDM %.1f, VAR %.1f, COG %.1f, SOG %.1f", *hdtVal * RAD_TO_DEG, *hdmVal * RAD_TO_DEG, *varVal * RAD_TO_DEG,
+    //      *cogVal * RAD_TO_DEG, *sogVal * 3.6 / 1.852);
+
+    return true;
+}
+
+// calculate wind direction (either TWD or AWD) from wind angle (TWA or AWA) and HDT
+bool WindUtils::calcWD(const double* waVal, const double* hdtVal, double* wdVal)
+{
+    if (*waVal != DBL_MAX && *hdtVal != DBL_MAX) {
+        *wdVal = *waVal + *hdtVal;
+        *wdVal = to2PI(*wdVal);
+    } else {
+        *wdVal = DBL_MAX; // Cannot calculate wind direction WD without valid wind angle WA and HDT
+        return false;
+    }
+
+    return true;
+}
+
+// calculate full set of true winds (TWA, TWS, TWD) apparent winds and more data
+bool WindUtils::calcTrueWinds(const double* awaVal, const double* awsVal, const double* awd,
+    const double* cogVal, const double* stwVal, const double* sogVal, const double* hdtVal,
+    double* twaVal, double* twsVal, double* twdVal)
+{
+    double stw, ctw;
+    double twd, tws, twa;
+    double minSogVal = 0.1; // SOG below this value (m/s) is assumed to be  data noise from GPS sensor
+
+    if ((*awaVal == DBL_MAX) || (*awsVal == DBL_MAX)) {
+        // Cannot calculate true winds at all without valid AWA, AWS
+        return false;
     }
 
     if (*cogVal != DBL_MAX && *sogVal >= minSogVal) { // if SOG is data noise, we don't trust COG
 
         ctw = *cogVal; // Use COG for CTW if available
     } else {
-        ctw = hdt; // 2nd approximation for CTW; hdt must exist if we reach this part of the code
+        ctw = *hdtVal; // 2nd approximation for CTW; HDT must exist if we reach this part of code
     }
 
     if (*stwVal != DBL_MAX) {
@@ -456,28 +451,21 @@ bool WindUtils::calcWinds(const double* awaVal, const double* awsVal,
         // If STW and SOG are not available, we cannot calculate true wind
         return false;
     }
-    // LOG_DEBUG(GwLog::DEBUG, "WindUtils:calcWinds: HDT: %.1f, CTW %.1f, STW %.1f", hdt, ctw, stw);
+    // LOG_DEBUG(GwLog::DEBUG, "WindUtils:calcTrueWinds: HDT: %.1f, CTW %.1f, STW %.1f", *hdtVal * RAD_TO_DEG, ctw * RAD_TO_DEG, stw * 3.6 / 1.852);
 
-    if ((*awaVal == DBL_MAX) || (*awsVal == DBL_MAX)) {
+    calcTwdSA(awaVal, awsVal, awd, &ctw, &stw, hdtVal, &twa, &tws, &twd);
-        // Cannot calculate true wind without valid AWA, AWS; other checks are done earlier
+    *twaVal = twa;
-        return false;
+    *twsVal = tws;
-    } else {
+    *twdVal = twd;
-        calcTwdSA(awaVal, awsVal, &ctw, &stw, &hdt, &twd, &tws, &twa, &awd);
-        *twdVal = twd;
-        *twsVal = tws;
-        *twaVal = twa;
-        *awdVal = awd;
 
-        return true;
+    return true;
-    }
 }
 
 // Calculate true wind data and add to obp60task boat data list
-bool WindUtils::addWinds()
+bool WindUtils::handleWinds(bool calcWinds)
 {
-    double twd, tws, twa, awd, hdt;
+    double twd, tws, twa, awd;
     bool twCalculated = false;
-    bool awdCalculated = false;
 
     double awaVal = awaBVal->valid ? awaBVal->value : DBL_MAX;
     double awsVal = awsBVal->valid ? awsBVal->value : DBL_MAX;
@@ -487,48 +475,61 @@ bool WindUtils::addWinds()
     double hdtVal = hdtBVal->valid ? hdtBVal->value : DBL_MAX;
     double hdmVal = hdmBVal->valid ? hdmBVal->value : DBL_MAX;
     double varVal = varBVal->valid ? varBVal->value : DBL_MAX;
-    //LOG_DEBUG(GwLog::DEBUG, "WindUtils:addWinds: AWA %.1f, AWS %.1f, COG %.1f, STW %.1f, SOG %.2f, HDT %.1f, HDM %.1f, VAR %.1f", awaBVal->value * RAD_TO_DEG, awsBVal->value * 3.6 / 1.852,
+    double twaVal = twaBVal->valid ? twaBVal->value : DBL_MAX;
-    //     cogBVal->value * RAD_TO_DEG, stwBVal->value * 3.6 / 1.852, sogBVal->value * 3.6 / 1.852, hdtBVal->value * RAD_TO_DEG, hdmBVal->value * RAD_TO_DEG, varBVal->value * RAD_TO_DEG);
+    double twsVal = twsBVal->valid ? twsBVal->value : DBL_MAX;
+    // LOG_DEBUG(GwLog::DEBUG, "WindUtils:handleWinds: AWA %.1f, AWS %.1f, AWD %.1f, COG %.1f, STW %.1f, SOG %.2f, HDT %.1f, HDM %.1f, VAR %.1f", awaVal * RAD_TO_DEG, awsVal * 3.6 / 1.852,
+    //     awd * RAD_TO_DEG, cogVal * RAD_TO_DEG, stwVal * 3.6 / 1.852, sogVal * 3.6 / 1.852, hdtVal * RAD_TO_DEG, hdmVal * RAD_TO_DEG, varVal * RAD_TO_DEG);
 
-    // Check if TWD can be calculated from TWA and HDT/HDM
+    if (calcHDT(&hdmVal, &varVal, &cogVal, &sogVal, &hdtVal)) {
-    if (twaBVal->valid) {
+        hdtBVal->value = hdtVal;
-        if (!twdBVal->valid) {
+        hdtBVal->valid = true;
-            if (hdtVal != DBL_MAX) {
+    } else {
-                hdt = hdtVal; // Use HDT if available
+        // determination of HDT was not possible due to missing prerequisite data
-            } else {
+        hdtBVal->valid = false;
-                hdt = calcHDT(&hdmVal, &varVal, &cogVal, &sogVal);
+        return false;
-            }
+    }
-            twd = twaBVal->value + hdt;
+
-            twd = to2PI(twd);
+    // calculate AWD if not existing and if possible
+    if (!awdBVal->valid) {
+        if (calcWD(&awaVal, &hdtVal, &awd)) {
+            awdBVal->value = awd;
+            awdBVal->valid = true;
+        } else {
+            awdBVal->valid = false;
+            return false;
+        }
+    }
+
+    // calculate TWD if not existing and if possible
+    if (!twdBVal->valid) {
+        // calculate TWD if it does not exist yet and TWA is available
+        if (calcWD(&twaVal, &hdtVal, &twd)) {
             twdBVal->value = twd;
             twdBVal->valid = true;
+        } else {
+            twdBVal->valid = false;
         }
+    }
 
-    } else {
+    if (calcWinds && (!twaBVal->valid || !twsBVal->valid || !twdBVal->valid)) {
-        // Calculate true winds and AWD; if true winds exist, use at least AWD calculation
+        // calculate true winds if user setting and at least one of three true wind values does not exist
-        twCalculated = calcWinds(&awaVal, &awsVal, &cogVal, &stwVal, &sogVal, &hdtVal, &hdmVal, &varVal, &twd, &tws, &twa, &awd);
+        twCalculated = calcTrueWinds(&awaVal, &awsVal, &awd, &cogVal, &stwVal, &sogVal, &hdtVal, &twa, &tws, &twd);
-
         if (twCalculated) { // Replace values only, if successfully calculated and not already available
-            if (!twdBVal->valid) {
+            if (!twaBVal->valid) {
-                twdBVal->value = twd;
+                twaBVal->value = twa;
-                twdBVal->valid = true;
+                twaBVal->valid = true;
             }
             if (!twsBVal->valid) {
                 twsBVal->value = tws;
                 twsBVal->valid = true;
             }
-            if (!twaBVal->valid) {
+            if (!twdBVal->valid) {
-                //twaBVal->value = twa;
+                twdBVal->value = twd;
-                twaBVal->value = to2PI(twa); // convert to [0..360], because pages cannot display negative values properly yet
+                twdBVal->valid = true;
-                twaBVal->valid = true;
-            }
-            if (!awdBVal->valid) {
-                awdBVal->value = awd;
-                awdBVal->valid = true;
             }
         }
     }
-    // LOG_DEBUG(GwLog::DEBUG, "WindUtils:addWinds: twCalculated %d, TWD %.1f, TWA %.1f, TWS %.2f kn, AWD: %.1f", twCalculated, twdBVal->value * RAD_TO_DEG,
+    // LOG_DEBUG(GwLog::DEBUG, "WindUtils:handleWinds: twCalculated %d, TWD %.1f, TWA %.1f, TWS %.2f kn, AWD: %.1f", twCalculated, twdBVal->value * RAD_TO_DEG,
     //     twaBVal->value * RAD_TO_DEG, twsBVal->value * 3.6 / 1.852, awdBVal->value * RAD_TO_DEG);
 
     return twCalculated;

lib/obp60task/OBPDataOperations.h

@@ -19,7 +19,7 @@ private:
     } tCalibrationData;
 
     std::unordered_map<std::string, tCalibrationData> calibrationMap; // list of calibration data instances
-    std::unordered_map<std::string, double> lastValue; // array for last smoothed values of boat data values
+    std::unordered_map<std::string, double> lastValue; // array for last smoothed value of boat data values
     GwLog* logger;
 
     static constexpr int8_t MAX_CALIBRATION_DATA = 4; // maximum number of calibration data instances
@@ -32,6 +32,7 @@ public:
     bool smoothInstance(GwApi::BoatValue* boatDataValue); // Smooth single boat data value
 };
 
+// Class for a single history buffer of boat values
 class HstryBuf {
 private:
     RingBuffer<uint16_t> hstryBuf; // Circular buffer to store history values
@@ -50,13 +51,13 @@ public:
     void handle(bool useSimuData, CommonData& common);
 };
 
+// Manage list of history buffers for supported boat data; used by boat data charts
 class HstryBuffers {
 private:
     std::map<String, std::unique_ptr<HstryBuf>> hstryBuffers;
     int size; // size of all history buffers
     BoatValueList* boatValueList;
     GwLog* logger;
-    GwApi::BoatValue *awaBVal, *hdtBVal, *hdmBVal, *varBVal, *cogBVal, *sogBVal, *awdBVal; // boat values for true wind calculation
 
     struct HistoryParams {
         int hstryUpdFreq; // update frequency of history buffer (documentation only)
@@ -97,7 +98,8 @@ public:
 class WindUtils {
 private:
     GwApi::BoatValue *twaBVal, *twsBVal, *twdBVal;
-    GwApi::BoatValue *awaBVal, *awsBVal, *awdBVal, *cogBVal, *stwBVal, *sogBVal, *hdtBVal, *hdmBVal, *varBVal;
+    GwApi::BoatValue *awaBVal, *awsBVal, *awdBVal;
+    GwApi::BoatValue *cogBVal, *stwBVal, *sogBVal, *hdtBVal, *hdmBVal, *varBVal;
     static constexpr double DBL_MAX = std::numeric_limits<double>::max();
     GwLog* logger;
 
@@ -128,12 +130,12 @@ public:
     void addPolar(const double* phi1, const double* r1,
         const double* phi2, const double* r2,
         double* phi, double* r);
-    void calcTwdSA(const double* AWA, const double* AWS,
+    void calcTwdSA(const double* AWA, const double* AWS, const double* AWD, const double* CTW, const double* STW, const double* HDT,
-        const double* CTW, const double* STW, const double* HDT,
+        double* TWA, double* TWS, double* TWD);
-        double* TWD, double* TWS, double* TWA, double* AWD);
+    bool calcHDT(const double* hdmVal, const double* varVal, const double* cogVal, const double* sogVal, double* hdtVal);
-    static double calcHDT(const double* hdmVal, const double* varVal, const double* cogVal, const double* sogVal);
+    bool calcWD(const double* waVal, const double* hdtVal, double* wdVal);
-    bool calcWinds(const double* awaVal, const double* awsVal,
+    bool calcTrueWinds(const double* awaVal, const double* awsVal, const double* awd,
         const double* cogVal, const double* stwVal, const double* sogVal, const double* hdtVal,
-        const double* hdmVal, const double* varVal, double* twdVal, double* twsVal, double* twaVal, double* awdVal);
+        double* twdVal, double* twsVal, double* twaVal);
-    bool addWinds();
+    bool handleWinds(bool calcWinds);
 };

lib/obp60task/OBPSensorTask.cpp

@@ -66,8 +66,8 @@ void sensorTask(void *param){
     const int avgsize = 300;
     constexpr int arrayBatV{avgsize};
     constexpr int arrayBatC{avgsize};
-    movingAvg batV(arrayBatV);
+    movingAvg<int> batV(arrayBatV);
-    movingAvg batC(arrayBatC);
+    movingAvg<int> batC(arrayBatC);
     batV.begin();
     batC.begin();
 

lib/obp60task/OBPcharts.cpp

@@ -6,9 +6,9 @@
 std::map<String, ChartProps> Chart::dfltChrtDta = {
     { "formatWind", { 60.0 * DEG_TO_RAD, 10.0 * DEG_TO_RAD } }, // default course range 60 degrees
     { "formatCourse", { 60.0 * DEG_TO_RAD, 10.0 * DEG_TO_RAD } }, // default course range 60 degrees
-    { "formatKnots", { 7.71, 2.56 } }, // default speed range in m/s
+    { "formatKnots", { 2.57, 2.57 } }, // default speed range in m/s
-    { "formatDepth", { 15.0, 5.0 } }, // default depth range in m
+    { "formatDepth", { 10.0, 5.0 } }, // default depth range in m
-    { "kelvinToC", { 30.0, 5.0 } } // default temp range in °C/K
+    { "kelvinToC", { 20.0, 5.0 } } // default temp range in °C/K
 };
 
 // --- Class Chart ---------------
@@ -28,14 +28,25 @@ Chart::Chart(RingBuffer<uint16_t>& dataBuf, double dfltRng, CommonData& common,
     fgColor = commonData->fgcolor;
     bgColor = commonData->bgcolor;
 
-    dWidth = getdisplay().width();
+    // display dimensions (avoid calling width()/height() on incomplete LGFX type)
-    dHeight = getdisplay().height();
+    #ifdef TFT_DISPLAY
+        dWidth = 480;
+        dHeight = 320;
+    #else
+        dWidth = getdisplay().width();
+        dHeight = getdisplay().height();
+    #endif
 
     dataBuf.getMetaData(dbName, dbFormat);
     dbMIN_VAL = dataBuf.getMinVal();
     dbMAX_VAL = dataBuf.getMaxVal();
     bufSize = dataBuf.getCapacity();
 
+    smoothCharts = common.config->getBool(common.config->smoothCharts);
+    if (smoothCharts) {
+        chrtAvg.begin();
+    }
+
     // Initialize chart data format; shorter version of standard format indicator
     if (dbFormat == "formatCourse" || dbFormat == "formatWind" || dbFormat == "formatRot") {
         chrtDataFmt = WIND; // Chart is showing data of course / wind <degree> format
@@ -331,6 +342,23 @@ void Chart::drawChartLines(const char direction, const int8_t chrtIntv, const do
     double chrtVal; // Current data value
     Pos point, prevPoint; // current and previous chart point
 
+    if (smoothCharts) {
+        // prime moving average filter to ensure the first plotted point is already averaged
+
+        chrtAvg.reset();
+
+        // Feed the filter the 10 values preceding bufStart
+        for (int p = 10; p > 0; p--) {
+            // Calculate index with wrapping: (start - offset + size) % size
+            int primeIdx = (bufStart - (p * chrtIntv));
+            double primeVal = dataBuf.get(primeIdx);
+            
+            if (primeVal != dbMAX_VAL) {
+                chrtAvg.reading(primeVal);
+            }
+        }
+    }
+
     for (int i = 0; i < (numBufVals / chrtIntv); i++) {
 
         chrtVal = dataBuf.get(bufStart + (i * chrtIntv)); // show the latest wind values in buffer; keep 1st value constant in a rolling buffer
@@ -339,6 +367,11 @@ void Chart::drawChartLines(const char direction, const int8_t chrtIntv, const do
             chrtPrevVal = dbMAX_VAL;
         } else {
 
+            if (smoothCharts) {
+                // if chart lines shall be smoothed, apply moving average filter of the last 10 values
+                chrtVal = chrtAvg.reading(chrtVal);
+            }
+
             point = setCurrentChartPoint(i, direction, chrtVal, chrtScale);
 
             // if (i >= (numBufVals / chrtIntv) - 5) // log chart data of 1 line (adjust for test purposes)
@@ -393,7 +426,7 @@ void Chart::drawChartLines(const char direction, const int8_t chrtIntv, const do
 
             if (chrtDataFmt == WIND) { // degree of course or wind
                 recalcRngMid = true;
-                LOG_DEBUG(GwLog::DEBUG, "PageWindPlot: chart end: timAxis: %d, i: %d, bufStart: %d, numBufVals: %d, recalcRngCntr: %d", timAxis, i, bufStart, numBufVals, recalcRngMid);
+                // LOG_DEBUG(GwLog::DEBUG, "PageWindPlot: chart end: timAxis: %d, i: %d, bufStart: %d, numBufVals: %d, recalcRngCntr: %d", timAxis, i, bufStart, numBufVals, recalcRngMid);
             }
             break;
         }
@@ -434,46 +467,48 @@ Pos Chart::setCurrentChartPoint(const int i, const char direction, const double
 // chart time axis label + lines
 void Chart::drawChrtTimeAxis(const char chrtDir, const int8_t chrtSz, const int8_t chrtIntv)
 {
-    float axSlots, intv, i;
+    int axSlots, intv, i, timeRng;
     char sTime[6];
-    int timeRng = chrtIntv * 4; // chart time interval: [1] 4 min., [2] 8 min., [3] 12 min., [4] 16 min., [8] 32 min.
+    int tOffset;
 
     getdisplay().setFont(&Ubuntu_Bold8pt8b);
     getdisplay().setTextColor(fgColor);
 
-    axSlots = 5; // number of axis labels
+    intv = 60; // print axis label each 60 pixels = seconds
-    intv = timAxis / (axSlots - 1); // minutes per chart axis interval (interval is 1 less than axSlots)
+    axSlots = timAxis / intv; // number of axis labels; value will be truncated to full number
-    i = timeRng; // Chart axis label start at -32, -16, -12, ... minutes
 
     if (chrtDir == HORIZONTAL) {
         getdisplay().fillRect(0, cRoot.y, dWidth, 2, fgColor);
 
-        for (float j = 0; j < timAxis - 1; j += intv) { // fill time axis with values but keep area free on right hand side for value label
+        i = axSlots * chrtIntv * -1; // current minute label
+        // LOG_DEBUG(GwLog::DEBUG, "Chart::drawChrtTimeAxis: intv: %d, axSlots: %d, timAxis: %d, chrtIntv: %d", intv, axSlots, timAxis, chrtIntv);
+        for (int j = intv; j < timAxis - 1; j += intv) { // fill time axis with values but keep area free on right hand side for value label
 
             // draw text with appropriate offset
-            int tOffset = j == 0 ? 13 : -4;
+            tOffset = j == 0 ? 13 : -4;
-            snprintf(sTime, sizeof(sTime), "-%.0f", i);
+            snprintf(sTime, sizeof(sTime), "%d", i);
             drawTextCenter(cRoot.x + j + tOffset, cRoot.y - 8, sTime);
             getdisplay().drawLine(cRoot.x + j, cRoot.y, cRoot.x + j, cRoot.y + 5, fgColor); // draw short vertical time mark
 
-            i -= chrtIntv;
+            i += chrtIntv;
         }
 
     } else { // vertical chart
 
+        i = chrtIntv * -1; // current minute label
         for (float j = intv; j < timAxis - 1; j += intv) { // don't print time label at upper and lower end of time axis
 
-            i -= chrtIntv; // we start not at top chart position
+            snprintf(sTime, sizeof(sTime), "%d", i);
-            snprintf(sTime, sizeof(sTime), "-%.0f", i);
             getdisplay().drawLine(cRoot.x, cRoot.y + j, cRoot.x + valAxis, cRoot.y + j, fgColor); // Grid line
 
             if (chrtSz == FULL_SIZE) { // full size chart
                 getdisplay().fillRect(0, cRoot.y + j - 9, 32, 15, bgColor); // clear small area to remove potential chart lines
                 getdisplay().setCursor((4 - strlen(sTime)) * 7, cRoot.y + j + 3); // time value; print left screen; value right-formated
-                getdisplay().printf("%s", sTime); // Range value
+                getdisplay().printf("%s", sTime); // time value
             } else if (chrtSz == HALF_SIZE_RIGHT) { // half size chart; right side
                 drawTextCenter(dWidth / 2, cRoot.y + j, sTime); // time value; print mid screen
             }
+            i -= chrtIntv;
         }
     }
 }
@@ -491,11 +526,11 @@ void Chart::drawChrtValAxis(const char chrtDir, const int8_t chrtSz, bool prntNa
 
         if (chrtSz == FULL_SIZE) {
 
+            // print buffer data name on left hand side of time axis (max. size 5 characters)
             font = &Ubuntu_Bold12pt8b;
-
-            // print buffer data name on right hand side of time axis (max. size 5 characters)
             getdisplay().setFont(font);
-            drawTextRalign(cRoot.x + timAxis, cRoot.y - 3, dbName.substring(0, 5));
+            getdisplay().fillRect(cRoot.x + timAxis - 57, cRoot.y + 2, 58, 20, bgColor); // clear small area to remove potential chart lines
+            drawTextRalign(cRoot.x + timAxis, cRoot.y + 19, dbName.substring(0, 5));
 
             if (chrtDataFmt == WIND) {
                 prntHorizChartThreeValueAxisLabel(font);
@@ -509,11 +544,11 @@ void Chart::drawChrtValAxis(const char chrtDir, const int8_t chrtSz, bool prntNa
         } else { // half size chart -> just print edge values + middle chart line
 
             font = &Ubuntu_Bold10pt8b;
-
             if (prntName) {
                 // print buffer data name on right hand side of time axis (max. size 5 characters)
                 getdisplay().setFont(font);
-                drawTextRalign(cRoot.x + timAxis, cRoot.y - 3, dbName.substring(0, 5));
+                getdisplay().fillRect(cRoot.x + timAxis - 57, cRoot.y + 2, 58, 20, bgColor); // clear small area to remove potential chart lines
+                drawTextRalign(cRoot.x + timAxis, cRoot.y + 16, dbName.substring(0, 5));
             }
 
             prntHorizChartThreeValueAxisLabel(font);

lib/obp60task/OBPcharts.h

@@ -2,6 +2,7 @@
 #pragma once
 #include "Pagedata.h"
 #include "OBP60Extensions.h"
+#include "movingAvg.h"
 
 struct Pos {
     int x;
@@ -44,12 +45,11 @@ protected:
     static constexpr bool NO_SIMUDATA = true; // switch off simulation feature of <formatValue> function
 
     RingBuffer<uint16_t>& dataBuf; // Buffer to display
-    //char chrtDir; // Chart timeline direction: 'H' = horizontal, 'V' = vertical
-    //int8_t chrtSz; // Chart size: [0] = full size, [1] = half size left/top, [2] half size right/bottom
     double dfltRng; // Default range of chart, e.g. 30 = [0..30]
     uint16_t fgColor; // color code for any screen writing
     uint16_t bgColor; // color code for screen background
     bool useSimuData; // flag to indicate if simulation data is active
+    bool smoothCharts; // flag to indicate if charts shall be printed with smoothed gradient
     String tempFormat; // user defined format for temperature
     double zeroValue; // "0" SI value for temperature
 
@@ -84,6 +84,7 @@ protected:
     bool bufDataValid = false; // Flag to indicate if buffer data is valid
     int oldChrtIntv = 0; // remember recent user selection of data interval
 
+    movingAvg<double> chrtAvg{7}; // Store average of the last 7 chart values if chart gradient shall be smoothed
     double chrtPrevVal; // Last data value in chart area
     int x, y; // x and y coordinates for drawing
     int prevX, prevY; // Last x and y coordinates for drawing

lib/obp60task/PageAutopilot.cpp

@@ -117,7 +117,7 @@ class PageAutopilot : public Page
         //***********************************************************
 
         // Set display in partial refresh mode
-        getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
+        displaySetPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
         getdisplay().setTextColor(commonData->fgcolor);
 /*
         // Horizontal line 2 pix top & bottom

lib/obp60task/PageBME280.cpp

@@ -105,7 +105,7 @@ class PageBME280 : public Page
         //***********************************************************
 
         // Set display in partial refresh mode
-        getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
+        displaySetPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
 
         getdisplay().setTextColor(commonData->fgcolor);
 

lib/obp60task/PageBattery.cpp

@@ -158,7 +158,7 @@ class PageBattery : public Page
         //***********************************************************
 
         // Set display in partial refresh mode
-        getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
+        displaySetPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
 
         // Show average settings
         getdisplay().setTextColor(commonData->fgcolor);

lib/obp60task/PageBattery2.cpp

@@ -2,7 +2,6 @@
 
 #include "Pagedata.h"
 #include "OBP60Extensions.h"
-#include "movingAvg.h"              // Lib for moving average building
 
 class PageBattery2 : public Page
 {
@@ -184,7 +183,7 @@ public:
         //***********************************************************
 
         // Set display in partial refresh mode
-        getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
+        displaySetPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
 
         getdisplay().setTextColor(commonData->fgcolor);
 

lib/obp60task/PageClock.cpp

@@ -375,7 +375,7 @@ public:
         //***********************************************************
 
         // Set display in partial refresh mode
-        getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
+        displaySetPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
 
         getdisplay().setTextColor(commonData->fgcolor);
 
@@ -442,8 +442,8 @@ public:
             uint16_t wDigit, hDigit;
             uint16_t wColon, hColon;
 
-            getdisplay().getTextBounds("00", 0, 0, &x0, &y0, &wDigit, &hDigit);
+displayGetTextBounds("00", 0, 0, &x0, &y0, &wDigit, &hDigit);
-            getdisplay().getTextBounds(":", 0, 0, &x0, &y0, &wColon, &hColon);
+displayGetTextBounds(":", 0, 0, &x0, &y0, &wColon, &hColon);
 
             uint16_t totalWidth = 3 * wDigit + 2 * wColon;
 
@@ -453,7 +453,7 @@ public:
             // Draw time string centered
             int16_t x1b, y1b;
             uint16_t wb, hb;
-            getdisplay().getTextBounds(timeStr, 0, 0, &x1b, &y1b, &wb, &hb);
+            displayGetTextBounds(timeStr, 0, 0, &x1b, &y1b, &wb, &hb);
             int16_t textX = (static_cast<int16_t>(getdisplay().width()) - static_cast<int16_t>(wb)) / 2;
             int16_t textY = centerY + hb / 2;
 
@@ -520,7 +520,7 @@ public:
 
             int16_t x1b, y1b;
             uint16_t wb, hb;
-            getdisplay().getTextBounds(timeStr, 0, 0, &x1b, &y1b, &wb, &hb);
+            displayGetTextBounds(timeStr, 0, 0, &x1b, &y1b, &wb, &hb);
 
             int16_t x = (static_cast<int16_t>(getdisplay().width()) - static_cast<int16_t>(wb)) / 2;
             int16_t y = 150 + hb / 2;
@@ -665,7 +665,7 @@ public:
                 // Print text centered on position x, y
                 int16_t x1c, y1c;     // Return values of getTextBounds
                 uint16_t wc, hc;      // Return values of getTextBounds
-                getdisplay().getTextBounds(ii, int(x), int(y), &x1c, &y1c, &wc, &hc); // Calc width of new string
+                displayGetTextBounds(ii, int(x), int(y), &x1c, &y1c, &wc, &hc); // Calc width of new string
                 getdisplay().setCursor(x - wc / 2, y + hc / 2);
                 if (i % 90 == 0) {
                     getdisplay().setFont(&Ubuntu_Bold12pt8b);

lib/obp60task/PageCompass.cpp

@@ -109,7 +109,7 @@ class PageCompass : public Page
         //***********************************************************
 
         // Set display in partial refresh mode
-        getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
+        displaySetPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
         getdisplay().setTextColor(commonData->fgcolor);
 
         // Horizontal line 2 pix top & bottom

lib/obp60task/PageDST810.cpp

@@ -91,7 +91,7 @@ public:
         //***********************************************************
 
         // Set display in partial refresh mode
-        getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
+        displaySetPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
 
         getdisplay().setTextColor(commonData->fgcolor);
 

lib/obp60task/PageDigitalOut.cpp

@@ -106,7 +106,7 @@ bool button5 = false;
         //***********************************************************
 
         // Set display in partial refresh mode
-        getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
+        displaySetPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
         getdisplay().setTextColor(commonData->fgcolor);
         getdisplay().setFont(&Ubuntu_Bold12pt8b);
         // Write text

lib/obp60task/PageFluid.cpp

@@ -138,7 +138,7 @@ class PageFluid : public Page
         //***********************************************************
 
         // Set display in partial refresh mode
-        getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height());
+        displaySetPartialWindow(0, 0, getdisplay().width(), getdisplay().height());
 
         getdisplay().setTextColor(commonData->fgcolor);
 

lib/obp60task/PageFourValues.cpp

@@ -91,7 +91,7 @@ class PageFourValues : public Page
         //***********************************************************
 
         // Set display in partial refresh mode
-        getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
+        displaySetPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
 
         getdisplay().setTextColor(commonData->fgcolor);
 

lib/obp60task/PageFourValues2.cpp

@@ -91,7 +91,7 @@ class PageFourValues2 : public Page
         //***********************************************************
 
         // Set display in partial refresh mode
-        getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
+        displaySetPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
 
         getdisplay().setTextColor(commonData->fgcolor);
 

lib/obp60task/PageGenerator.cpp

@@ -2,7 +2,6 @@
 
 #include "Pagedata.h"
 #include "OBP60Extensions.h"
-#include "movingAvg.h"              // Lib for moving average building
 
 class PageGenerator : public Page
 {
@@ -83,7 +82,7 @@ public:
         //***********************************************************
 
         // Set display in partial refresh mode
-        getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
+        displaySetPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
 
         getdisplay().setTextColor(commonData->fgcolor);
 

lib/obp60task/PageKeelPosition.cpp

@@ -68,7 +68,7 @@ public:
         //***********************************************************
 
         // Set display in partial refresh mode
-        getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
+        displaySetPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
 
 //*******************************************************************************************
         
@@ -105,7 +105,7 @@ public:
             // Print text centered on position x, y
             int16_t x1, y1;     // Return values of getTextBounds
             uint16_t w, h;      // Return values of getTextBounds
-            getdisplay().getTextBounds(ii, int(x), int(y), &x1, &y1, &w, &h); // Calc width of new string
+            displayGetTextBounds(ii, int(x), int(y), &x1, &y1, &w, &h); // Calc width of new string
             getdisplay().setCursor(x-w/2, y+h/2);
             if(i % 30 == 0){
                 getdisplay().setFont(&Ubuntu_Bold8pt8b);

lib/obp60task/PageNavigation.cpp

@@ -4,6 +4,7 @@
 #include "OBP60Extensions.h"
 #include "NetworkClient.h"      // Network connection
 #include "ImageDecoder.h"       // Image decoder for navigation map
+#include <mbedtls/base64.h>
 
 #include "Logo_OBP_400x300_sw.h"
 
@@ -12,6 +13,54 @@
 NetworkClient net(JSON_BUFFER); // Define network client
 ImageDecoder decoder;           // Define image decoder        
 
+#ifdef TFT_DISPLAY
+// Set to true to render a generated RGB565 color-bar test image.
+static constexpr bool kShowRgb565StripeTestImage = false;
+
+static void drawRgb565Image(int16_t x, int16_t y, const uint16_t *img, int16_t w, int16_t h) {
+    if (img == nullptr || w <= 0 || h <= 0) {
+        return;
+    }
+    for (int16_t yy = 0; yy < h; ++yy) {
+        const uint16_t *row = img + ((size_t)yy * (size_t)w);
+        for (int16_t xx = 0; xx < w; ++xx) {
+            getdisplay().drawPixel(x + xx, y + yy, row[xx]);
+        }
+        if ((yy & 0x0F) == 0) {
+            yield();
+        }
+    }
+}
+
+static void createRgb565StripeImage(uint16_t *img, int16_t w, int16_t h) {
+    if (img == nullptr || w <= 0 || h <= 0) {
+        return;
+    }
+    static const uint16_t stripes[] = {
+        0xF800, // red
+        0xFD20, // orange
+        0xFFE0, // yellow
+        0x07E0, // green
+        0x07FF, // cyan
+        0x001F, // blue
+        0xF81F, // magenta
+        0xFFFF  // white
+    };
+    const int stripeCount = (int)(sizeof(stripes) / sizeof(stripes[0]));
+
+    for (int16_t y = 0; y < h; ++y) {
+        uint16_t *row = img + ((size_t)y * (size_t)w);
+        for (int16_t x = 0; x < w; ++x) {
+            int idx = ((int)x * stripeCount) / (int)w;
+            if (idx >= stripeCount) {
+                idx = stripeCount - 1;
+            }
+            row[x] = stripes[idx];
+        }
+    }
+}
+#endif
+
 class PageNavigation : public Page
 {
 // Values for buttons
@@ -24,13 +73,19 @@ bool showValues = false; // Show values HDT, SOG, DBT in navigation map
     int imageBackupWidth = 0;
     int imageBackupHeight = 0;
     size_t imageBackupSize = 0;
+    size_t imageBackupCapacity = 0;
     bool hasImageBackup = false;
+    bool imageBackupIsRgb565 = false;
 
     public:
     PageNavigation(CommonData &common){
         commonData = &common;
         common.logger->logDebug(GwLog::LOG,"Instantiate PageNavigation");
-        imageBackupData = (uint8_t*)heap_caps_malloc((GxEPD_WIDTH * GxEPD_HEIGHT), MALLOC_CAP_SPIRAM);
+        imageBackupCapacity = (size_t)GxEPD_WIDTH * (size_t)GxEPD_HEIGHT;
+        #ifdef TFT_DISPLAY
+        imageBackupCapacity *= 2U;
+        #endif
+        imageBackupData = (uint8_t*)heap_caps_malloc(imageBackupCapacity, MALLOC_CAP_SPIRAM);
     }
 
     // Set botton labels
@@ -295,6 +350,18 @@ bool showValues = false; // Show values HDT, SOG, DBT in navigation map
             mType = 9;
             dType = 1;
         }
+        else if(mapType == "C-Map"){
+            mType = 103486987;
+            dType = 1;
+        }
+        else if(mapType == "Garmin Fish"){
+            mType = 113486987;
+            dType = 1;
+        }
+        else if(mapType == "Garmin Nav"){
+            mType = 123486987;
+            dType = 1;
+        }
         else{
             mType = 1;
             dType = 1;
@@ -347,22 +414,33 @@ bool showValues = false; // Show values HDT, SOG, DBT in navigation map
         // URL to OBP Maps Converter
         // For more details see: https://github.com/norbert-walter/maps-converter
         String url = String("http://") + server + ":" + port +  // OBP Server
-                    String("/get_image_json?") +               // Service: Output B&W picture as JSON (Base64 + gzip)
+                    String("/get_image_json?") +                // Service: Output B&W picture as JSON (Base64 + gzip)
-                    "zoom=" + zoom +   // Default zoom level: 15
+                    #ifdef TFT_DISPLAY
+                    "oformat=3" +       // Image output format in JSON: 3=RGB565 format
+                    #else
+                    "oformat=4" +       // Image output format in JSON: 4=b/w 1-Bit format
+                    #endif                 
+                    "&zoom=" + zoom +    // Default zoom level: 15
                     "&lat=" + String(latitude, 6) +   // Latitude
                     "&lon=" + String(longitude, 6) +  // Longitude
                     "&mrot=" + mapRot + // Rotation angle navigation map in degree
                     "&mtype=" + mType + // Default Map: Open Street Map
-                    "&dtype=" + dType + // Dithering type: Atkinson dithering
+                    #ifdef TFT_DISPLAY
-                    "&width=400" +     // With navigation map
+                    "&itype=1" +        // Image type: 1=Color
-                    "&height=250" +    // Height navigation map
+                    #else
-                    "&cutout=0" +      // No picture cutouts
+                    "&itype=4" +        // Image type: 4=b/w with dithering
-                    "&tab=0" +         // No tab size
+                    #endif              
-                    "&border=2" +      // Border line size: 2 pixel
+                    "&dtype=" + dType + // Dithering type: Atkinson dithering (only activ when itype=4 otherwise inactive)                   
-                    "&symbol=2" +      // Symbol: Triangle
+                    "&width=400" +      // With navigation map
+                    "&height=250" +     // Height navigation map
+                    "&cutout=0" +       // No picture cutouts (tab, border and alpha are unused when cutout=0)
+                    "&tab=0" +          // No tab size (only available when sqare cutouts selected coutout=3...7)
+                    "&border=2" +       // Border line size: 2 pixel (only available when sqare cutouts selected)
+                    "&alpha=80" +       // Alpha for tabs: 80% visible (only available when sqare cutouts selected)
+                    "&symbol=2" +       // Symbol: Triangle
                     "&srot=" + symbolRot + // Symbol rotation angle
-                    "&ssize=15" +      // Symbole size: 15 pixel
+                    "&ssize=15" +       // Symbole size: 15 pixel (center pointer)
-                    "&grid=" + mapGrid // Show grid: On
+                    "&grid=" + mapGrid  // Show grid: On
                     ;         
         
         // Draw page
@@ -371,19 +449,45 @@ bool showValues = false; // Show values HDT, SOG, DBT in navigation map
         // ############### Draw Navigation Map ################
         
         // Set display in partial refresh mode
-        getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
+        displaySetPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
         getdisplay().setTextColor(commonData->fgcolor);
 
+        // NEW: simple exponential backoff for 1 Hz polling (prevents connection-refused storms)
+        static uint32_t nextAllowedMs = 0;
+        static uint8_t  failCount = 0;
+
+        uint32_t now = millis();
+
+        // NEW: if we are in backoff window, skip network call and use backup immediately
+        bool allowFetch = ((int32_t)(now - nextAllowedMs) >= 0);
+        
         // If a network connection to URL then load the navigation map
-        if (net.fetchAndDecompressJson(url)) {
+        if (allowFetch && net.fetchAndDecompressJson(url)) {
 
-            auto& json = net.json();                // Extract JSON content
+            // NEW: reset backoff on success
-            int numPix = json["number_pixels"] | 0; // Read number of pixels
+            failCount = 0;
-            imgWidth = json["width"] | 0;           // Read width of image
+            nextAllowedMs = now + 1000; // keep 1 Hz on success
-            imgHeight = json["height"] | 0;         // Read height og image
 
-            const char* b64src = json["picture_base64"].as<const char*>();  // Read picture as Base64 content
+            int numPix = net.numberPixels(); // Read number of pixels
-            size_t b64len = strlen(b64src);                                 // Calculate length of Base64 content
+            imgWidth = net.imageWidth();     // Read width of image
+            imgHeight = net.imageHeight();   // Read height of image
+            size_t requiredBytesMono = 0;
+            size_t requiredBytesRgb565 = 0;
+            if (imgWidth > 0 && imgHeight > 0){
+                requiredBytesMono = (size_t)((imgWidth + 7) / 8) * (size_t)imgHeight;
+                requiredBytesRgb565 = (size_t)imgWidth * (size_t)imgHeight * 2U;
+            }
+            if (requiredBytesMono == 0){
+                LOG_DEBUG(GwLog::ERROR,"Error PageNavigation: invalid image geometry w=%d h=%d",imgWidth,imgHeight);
+                return PAGE_UPDATE;
+            }
+
+            const char* b64src = net.pictureBase64();  // Read picture as Base64 content
+            if (b64src == nullptr){
+                LOG_DEBUG(GwLog::ERROR,"Error PageNavigation: picture_base64 missing");
+                return PAGE_UPDATE;
+            }
+            size_t b64len = net.pictureBase64Len(); // Calculate length of Base64 content
             // Copy Base64 content in PSRAM
             char* b64 = (char*) heap_caps_malloc(b64len + 1, MALLOC_CAP_SPIRAM);    // Allcate PSRAM for Base64 content
             if (!b64) {
@@ -393,32 +497,81 @@ bool showValues = false; // Show values HDT, SOG, DBT in navigation map
             memcpy(b64, b64src, b64len + 1);    // Copy Base64 content in PSRAM
 
             // Set image buffer in PSRAM
-            //size_t imgSize = getdisplay().width() * getdisplay().height();
+            size_t imgSize = (numPix > 0) ? (size_t)numPix : requiredBytesMono;    // Calculate image size
-            size_t imgSize = numPix;    // Calculate image size
+            if (imgSize < requiredBytesMono){
+                imgSize = requiredBytesMono;
+            }
+            #ifdef TFT_DISPLAY
+            if (imgSize < requiredBytesRgb565){
+                imgSize = requiredBytesRgb565;
+            }
+            #endif
             uint8_t* imageData = (uint8_t*) heap_caps_malloc(imgSize, MALLOC_CAP_SPIRAM);           // Allocate PSRAM for image
             if (!imageData) {
-                LOG_DEBUG(GwLog::ERROR,"Error PageNavigation: PPSRAM alloc image buffer failed");
+                LOG_DEBUG(GwLog::ERROR,"Error PageNavigation: PSRAM alloc image buffer failed");
                 free(b64);
                 return PAGE_UPDATE;
             }
 
             // Decode Base64 content to image
             size_t decodedSize = 0;
-            decoder.decodeBase64(b64, imageData, imgSize, decodedSize);
+            bool decodeOk = decoder.decodeBase64(b64, b64len, imageData, imgSize, decodedSize);
+            if (!decodeOk || decodedSize < requiredBytesMono){
+                int base64Ret = mbedtls_base64_decode(
+                    nullptr,
+                    0,
+                    &decodedSize,
+                    (const unsigned char*)b64,
+                    b64len
+                );
+                LOG_DEBUG(GwLog::ERROR,
+                    "Error PageNavigation: decode failed (ok=%d, decoded=%u, required=%u, b64ret=%d)",
+                    decodeOk ? 1 : 0,
+                    (unsigned int)decodedSize,
+                    (unsigned int)requiredBytesMono,
+                    base64Ret
+                );
+                free(b64);
+                free(imageData);
+                return PAGE_UPDATE;
+            }
 
-            // Copy actual navigation man to ackup map
+            bool imageIsRgb565 = false;
+            #ifdef TFT_DISPLAY
+            imageIsRgb565 = (decodedSize >= requiredBytesRgb565);
+            #endif
+
+            #ifdef TFT_DISPLAY
+            if (kShowRgb565StripeTestImage) {
+                createRgb565StripeImage(reinterpret_cast<uint16_t*>(imageData), imgWidth, imgHeight);
+                decodedSize = requiredBytesRgb565;
+                imageIsRgb565 = true;
+            }
+            #endif
+
+            // Copy actual navigation map to backup map
             imageBackupWidth  = imgWidth;
             imageBackupHeight = imgHeight;
             imageBackupSize   = imgSize;
-            if (decodedSize > 0) {
+            if (decodedSize > 0 && imageBackupData != nullptr) {
-                memcpy(imageBackupData, imageData, decodedSize);
+                size_t copySize = (decodedSize > imageBackupCapacity) ? imageBackupCapacity : decodedSize;
-                imageBackupSize = decodedSize;
+                memcpy(imageBackupData, imageData, copySize);
+                imageBackupSize = copySize;
             }
-            hasImageBackup = true;
+            imageBackupIsRgb565 = imageIsRgb565;
+            hasImageBackup = (imageBackupData != nullptr);
             lostCounter = 0;
 
             // Show image (navigation map)
-            getdisplay().drawBitmap(0, 25, imageData, imgWidth, imgHeight, commonData->fgcolor);
+            #ifdef TFT_DISPLAY
+            if (imageIsRgb565) {
+                drawRgb565Image(0, 25, reinterpret_cast<const uint16_t*>(imageData), imgWidth, imgHeight);
+            } else {
+                displayDrawBitmap(0, 25, imageData, imgWidth, imgHeight, commonData->fgcolor);
+            }
+            #else
+            displayDrawBitmap(0, 25, imageData, imgWidth, imgHeight, commonData->fgcolor);
+            #endif
 
             // Clean PSRAM
             free(b64);
@@ -426,12 +579,33 @@ bool showValues = false; // Show values HDT, SOG, DBT in navigation map
         }
         // If no network connection then use backup navigation map
         else{
+
+            // NEW: update backoff only if we actually attempted a fetch (not when skipping due to backoff)
+            if (allowFetch) {
+                // NEW: exponential backoff: 1s,2s,4s,8s,16s,30s (capped)
+                if (failCount < 6) failCount++;
+                uint32_t backoffMs = 1000u << failCount;
+                if (backoffMs > 30000u) backoffMs = 30000u;
+                nextAllowedMs = now + backoffMs;
+            } else {
+                // NEW: we are currently backing off; do not increase failCount further
+                // nextAllowedMs stays unchanged
+            }
+
             // Show backup image (backup navigation map)
             if (hasImageBackup) {
-                getdisplay().drawBitmap(0, 25, imageBackupData, imageBackupWidth, imageBackupHeight, commonData->fgcolor);
+                #ifdef TFT_DISPLAY
+                if (imageBackupIsRgb565) {
+                    drawRgb565Image(0, 25, reinterpret_cast<const uint16_t*>(imageBackupData), imageBackupWidth, imageBackupHeight);
+                } else {
+                    displayDrawBitmap(0, 25, imageBackupData, imageBackupWidth, imageBackupHeight, commonData->fgcolor);
+                }
+                #else
+                displayDrawBitmap(0, 25, imageBackupData, imageBackupWidth, imageBackupHeight, commonData->fgcolor);
+                #endif
             }    
 
-            // Show info: Connection lost when 5 page refreshes has a connection lost to the map server
+            // Show connection lost info when 5 page refreshes has a connection lost to the map server
             // Short connection losts are uncritical
             if(lostCounter >= 5){
                 getdisplay().setFont(&Ubuntu_Bold12pt8b);
@@ -444,7 +618,6 @@ bool showValues = false; // Show values HDT, SOG, DBT in navigation map
             lostCounter++; // Increment lost counter
         }
 
-
         // ############### Draw Values ################
         getdisplay().setFont(&Ubuntu_Bold12pt8b);
 

lib/obp60task/PageOneValue.cpp

@@ -209,8 +209,6 @@ public:
                     dataIntv = 3;
                 } else if (dataIntv == 3) {
                     dataIntv = 4;
-                } else if (dataIntv == 4) {
-                    dataIntv = 8;
                 } else {
                     dataIntv = 1;
                 }
@@ -276,7 +274,7 @@ public:
         // Draw page
         //***********************************************************
 
-        getdisplay().setPartialWindow(0, 0, width, height); // Set partial update
+        displaySetPartialWindow(0, 0, width, height); // Set partial update
 
         if (pageMode == VALUE || dataHstryBuf == nullptr) {
             // show only data value; ignore other pageMode options if no chart supported boat data history buffer is available

lib/obp60task/PageRollPitch.cpp

@@ -116,7 +116,7 @@ public:
         //***********************************************************
 
         // Set display in partial refresh mode
-        getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
+        displaySetPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
 
         getdisplay().setTextColor(commonData->fgcolor);
 
@@ -194,7 +194,7 @@ public:
                 // Print text centered on position x, y
                 int16_t x1, y1;     // Return values of getTextBounds
                 uint16_t w, h;      // Return values of getTextBounds
-                getdisplay().getTextBounds(ii, int(x), int(y), &x1, &y1, &w, &h); // Calc width of new string
+                displayGetTextBounds(ii, int(x), int(y), &x1, &y1, &w, &h); // Calc width of new string
                 getdisplay().setCursor(x-w/2, y+h/2);
                 if(i % 20 == 0){
                     getdisplay().setFont(&Ubuntu_Bold8pt8b);

lib/obp60task/PageRudderPosition.cpp

@@ -72,7 +72,7 @@ public:
         //***********************************************************
 
         // Set display in partial refresh mode
-        getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
+        displaySetPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
 
 //*******************************************************************************************
         
@@ -110,7 +110,7 @@ public:
             // Print text centered on position x, y
             int16_t x1, y1;     // Return values of getTextBounds
             uint16_t w, h;      // Return values of getTextBounds
-            getdisplay().getTextBounds(ii, int(x), int(y), &x1, &y1, &w, &h); // Calc width of new string
+            displayGetTextBounds(ii, int(x), int(y), &x1, &y1, &w, &h); // Calc width of new string
             getdisplay().setCursor(x-w/2, y+h/2);
             if(i % 30 == 0){
                 getdisplay().setFont(&Ubuntu_Bold8pt8b);

lib/obp60task/PageSixValues.cpp

@@ -75,7 +75,7 @@ class PageSixValues : public Page
             //***********************************************************
     
             // Set display in partial refresh mode
-            getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
+            displaySetPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
             getdisplay().setTextColor(commonData->fgcolor);
 
             for (int i = 0; i < ( HowManyValues / 2 ); i++){

lib/obp60task/PageSkyView.cpp

@@ -73,7 +73,7 @@ public:
         //***********************************************************
 
         // Set display in partial refresh mode
-        getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
+        displaySetPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
 
         // current position
         getdisplay().setFont(&Ubuntu_Bold8pt8b);
@@ -105,19 +105,19 @@ public:
         uint16_t w, h;
         getdisplay().setFont(&Ubuntu_Bold12pt8b);
 
-		getdisplay().getTextBounds("N", 0, 150, &x1, &y1, &w, &h);
+		displayGetTextBounds("N", 0, 150, &x1, &y1, &w, &h);
         getdisplay().setCursor(c.x - w / 2, c.y - r + h + 3);
         getdisplay().print("N");
 
-		getdisplay().getTextBounds("S", 0, 150, &x1, &y1, &w, &h);
+		displayGetTextBounds("S", 0, 150, &x1, &y1, &w, &h);
         getdisplay().setCursor(c.x - w / 2, c.y + r - 3);
         getdisplay().print("S");
 
-		getdisplay().getTextBounds("E", 0, 150, &x1, &y1, &w, &h);
+		displayGetTextBounds("E", 0, 150, &x1, &y1, &w, &h);
         getdisplay().setCursor(c.x + r - w - 3, c.y + h / 2);
         getdisplay().print("E");
         
-		getdisplay().getTextBounds("W", 0, 150, &x1, &y1, &w, &h);
+		displayGetTextBounds("W", 0, 150, &x1, &y1, &w, &h);
         getdisplay().setCursor(c.x - r + 3 , c.y + h / 2);
         getdisplay().print("W");
 

lib/obp60task/PageSolar.cpp

@@ -2,7 +2,6 @@
 
 #include "Pagedata.h"
 #include "OBP60Extensions.h"
-#include "movingAvg.h"              // Lib for moving average building
 
 class PageSolar : public Page
 {
@@ -82,7 +81,7 @@ public:
         //***********************************************************
 
         // Set display in partial refresh mode
-        getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
+        displaySetPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
 
         getdisplay().setTextColor(commonData->fgcolor);
 

lib/obp60task/PageSystem.cpp

@@ -635,7 +635,7 @@ public:
         commonData->logger->logDebug(GwLog::LOG, "Drawing at PageSystem, Mode=%c", mode);
 
         // Set display in partial refresh mode
-        getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
+        displaySetPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
 
         // call current system page
         switch (mode) {
@@ -657,7 +657,7 @@ public:
         }
 
         // Update display
-        getdisplay().nextPage();    // Partial update (fast)
+        displayNextPage();    // Partial update (fast)
         return PAGE_OK;
     };
 };

lib/obp60task/PageThreeValues.cpp

@@ -80,7 +80,7 @@ class PageThreeValues : public Page
         //***********************************************************
 
         /// Set display in partial refresh mode
-        getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
+        displaySetPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
 
         // ############### Value 1 ################
 

lib/obp60task/PageTwoValues.cpp

@@ -211,8 +211,6 @@ public:
                     dataIntv = 3;
                 } else if (dataIntv == 3) {
                     dataIntv = 4;
-                } else if (dataIntv == 4) {
-                    dataIntv = 8;
                 } else {
                     dataIntv = 1;
                 }
@@ -283,7 +281,7 @@ public:
         // Draw page
         //***********************************************************
 
-        getdisplay().setPartialWindow(0, 0, width, height); // Set partial update
+        displaySetPartialWindow(0, 0, width, height); // Set partial update
 
         if (pageMode == VALUES || (dataHstryBuf[0] == nullptr && dataHstryBuf[1] == nullptr)) {
             // show only data value; ignore other pageMode options if no chart supported boat data history buffer is available

lib/obp60task/PageVoltage.cpp

@@ -2,7 +2,6 @@
 
 #include "Pagedata.h"
 #include "OBP60Extensions.h"
-#include "movingAvg.h"              // Lib for moving average building
 
 class PageVoltage : public Page
 {
@@ -193,7 +192,7 @@ public:
         //***********************************************************
 
         // Set display in partial refresh mode
-        getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
+        displaySetPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
 
         if (mode == 'D') {
             // Display mode digital

lib/obp60task/PageWhite.cpp

@@ -63,7 +63,7 @@ public:
         if (mode == 'W') {
             getdisplay().setFullWindow();
         } else {
-            getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
+            displaySetPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
         }
 
         if (mode == 'L') {

lib/obp60task/PageWind.cpp

@@ -358,7 +358,7 @@ public:
         //***********************************************************
 
         // Set display in partial refresh mode
-        getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
+        displaySetPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
 
         getdisplay().setTextColor(commonData->fgcolor);
 

lib/obp60task/PageWindPlot.cpp

@@ -37,7 +37,7 @@ private:
     bool oldShowTruW = false; // remember recent user selection of wind data type
 
     int8_t dataIntv = 1; // Update interval for wind history chart:
-                         // (1)|(2)|(3)|(4)|(8) x 240 seconds for 4, 8, 12, 16, 32 min. history chart
+                         // (1)|(2)|(3)|(4)|(8) seconds for up to 32 min. history chart
     bool useSimuData;
     // bool holdValues;
     String flashLED;
@@ -221,7 +221,7 @@ public:
         //***********************************************************
 
         // Set display in partial refresh mode
-        getdisplay().setPartialWindow(0, 0, width, height); // Set partial update
+        displaySetPartialWindow(0, 0, width, height); // Set partial update
         getdisplay().setTextColor(commonData->fgcolor);
 
         if (chrtMode == DIRECTION) {
@@ -231,6 +231,9 @@ public:
 
         } else if (chrtMode == SPEED) {
             if (wsChart) {
+                if (dataIntv == 8) {
+                    dataIntv = 1; // horizontal charts show max. 4 x 7 min. only; no factor 8 multiplier
+                }
                 wsChart->showChrt(HORIZONTAL, FULL_SIZE, dataIntv, PRNT_NAME, PRNT_VALUE, *wsBVal);
             }
 

lib/obp60task/PageWindRose.cpp

@@ -140,7 +140,7 @@ public:
         //***********************************************************
 
         // Set display in partial refresh mode
-        getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
+        displaySetPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
 
         getdisplay().setTextColor(commonData->fgcolor);
 
@@ -260,7 +260,7 @@ public:
             // Print text centered on position x, y
             int16_t x1, y1;     // Return values of getTextBounds
             uint16_t w, h;      // Return values of getTextBounds
-            getdisplay().getTextBounds(ii, int(x), int(y), &x1, &y1, &w, &h); // Calc width of new string
+            displayGetTextBounds(ii, int(x), int(y), &x1, &y1, &w, &h); // Calc width of new string
             getdisplay().setCursor(x-w/2, y+h/2);
             if(i % 30 == 0){
                 getdisplay().setFont(&Ubuntu_Bold8pt8b);

lib/obp60task/PageWindRoseFlex.cpp

@@ -200,7 +200,7 @@ public:
         //***********************************************************
 
         // Set display in partial refresh mode
-        getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
+        displaySetPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
 
         getdisplay().setTextColor(commonData->fgcolor);
 
@@ -314,7 +314,7 @@ public:
             // Print text centered on position x, y
             int16_t x1, y1;     // Return values of getTextBounds
             uint16_t w, h;      // Return values of getTextBounds
-            getdisplay().getTextBounds(ii, int(x), int(y), &x1, &y1, &w, &h); // Calc width of new string
+            displayGetTextBounds(ii, int(x), int(y), &x1, &y1, &w, &h); // Calc width of new string
             getdisplay().setCursor(x-w/2, y+h/2);
             if(i % 30 == 0){
                 getdisplay().setFont(&Ubuntu_Bold8pt8b);

lib/obp60task/PageXTETrack.cpp

@@ -89,7 +89,7 @@ class PageXTETrack : public Page
         //***********************************************************
 
         // Set display in partial refresh mode
-        getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
+        displaySetPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
 
         getdisplay().setTextColor(commonData->fgcolor);
 
@@ -112,25 +112,25 @@ class PageXTETrack : public Page
 
         GwApi::BoatValue *bv_xte = pageData.values[0]; // XTE
         String sval_xte = formatValue(bv_xte, *commonData).svalue;
-        getdisplay().getTextBounds(sval_xte, 0, 0, &x, &y, &w, &h);
+        displayGetTextBounds(sval_xte, 0, 0, &x, &y, &w, &h);
         getdisplay().setCursor(160-w, 170);
         getdisplay().print(sval_xte);
 
         GwApi::BoatValue *bv_cog = pageData.values[1]; // COG
         String sval_cog = formatValue(bv_cog, *commonData).svalue;
-        getdisplay().getTextBounds(sval_cog, 0, 0, &x, &y, &w, &h);
+        displayGetTextBounds(sval_cog, 0, 0, &x, &y, &w, &h);
         getdisplay().setCursor(360-w, 170);
         getdisplay().print(sval_cog);
 
         GwApi::BoatValue *bv_dtw = pageData.values[2]; // DTW
         String sval_dtw = formatValue(bv_dtw, *commonData).svalue;
-        getdisplay().getTextBounds(sval_dtw, 0, 0, &x, &y, &w, &h);
+        displayGetTextBounds(sval_dtw, 0, 0, &x, &y, &w, &h);
         getdisplay().setCursor(160-w, 257);
         getdisplay().print(sval_dtw);
 
         GwApi::BoatValue *bv_btw = pageData.values[3]; // BTW
         String sval_btw = formatValue(bv_btw, *commonData).svalue;
-        getdisplay().getTextBounds(sval_btw, 0, 0, &x, &y, &w, &h);
+        displayGetTextBounds(sval_btw, 0, 0, &x, &y, &w, &h);
         getdisplay().setCursor(360-w, 257);
         getdisplay().print(sval_btw);
 
@@ -149,7 +149,7 @@ class PageXTETrack : public Page
         }
 
         getdisplay().setFont(&Ubuntu_Bold10pt8b);
-        getdisplay().getTextBounds(sval_wpname, 0, 150, &x, &y, &w, &h);
+        displayGetTextBounds(sval_wpname, 0, 150, &x, &y, &w, &h);
         // TODO if text don't fix use smaller font size.
         // if smallest size does not fit use 2 lines
         // last resort: clip with ellipsis

lib/obp60task/Pagedata.h

@@ -126,7 +126,7 @@ class Page{
     virtual void displayNew(PageData &pageData){}
     virtual void leavePage(PageData &pageData){}
     virtual void setupKeys() {
-#ifdef HARDWARE_V21
+#ifdef BOARD_OBP60S3
         commonData->keydata[0].label = "";
         commonData->keydata[1].label = "";
         commonData->keydata[2].label = "#LEFT";

lib/obp60task/code_size.ps1

@@ -0,0 +1,16 @@
+param(
+    [string]$dir = "."
+)
+
+$total = 0
+
+Get-ChildItem -Path $dir -Recurse -File | Where-Object {
+    $_.Extension -in ".c", ".cpp", ".h"
+} | ForEach-Object {
+    $lines = [System.Linq.Enumerable]::Count([System.IO.File]::ReadLines($_.FullName))
+    Write-Output "$($_.FullName) : $lines"
+    $total += $lines
+}
+
+Write-Output "-----------------------------"
+Write-Output "Over all files: $total"

lib/obp60task/config_obp40.json

@@ -230,6 +230,17 @@
             "obp40": "true"
         }
     },
+    {
+        "name": "smoothCharts",
+        "label": "Smooth chart lines",
+        "type": "boolean",
+        "default": "false",
+        "description": "Print chart lines with a smoothed gradient",
+        "category": "OBP40 Settings",
+        "capabilities": {
+            "obp40": "true"
+        }
+    },
     {
         "name": "lengthFormat",
         "label": "Length Format",
@@ -678,7 +689,7 @@
         "type": "string",
         "default": "text1",
         "description": "Button name",
-        "category": "OBP60 IO-Modul1",
+        "category": "OBP40 IO-Module1",
         "capabilities": {
             "obp40":"true"
         }
@@ -689,7 +700,7 @@
         "type": "string",
         "default": "text2",
         "description": "Button name",
-        "category": "OBP60 IO-Modul1",
+        "category": "OBP40 IO-Module1",
         "capabilities": {
             "obp40":"true"
         }
@@ -700,7 +711,7 @@
         "type": "string",
         "default": "text3",
         "description": "Button name",
-        "category": "OBP60 IO-Modul1",
+        "category": "OBP40 IO-Module1",
         "capabilities": {
             "obp40":"true"
         }
@@ -711,7 +722,7 @@
         "type": "string",
         "default": "text4",
         "description": "Button name",
-        "category": "OBP60 IO-Modul1",
+        "category": "OBP40 IO-Module1",
         "capabilities": {
             "obp40":"true"
         }
@@ -722,7 +733,7 @@
         "type": "string",
         "default": "text5",
         "description": "Button name",
-        "category": "OBP60 IO-Modul1",
+        "category": "OBP40 IO-Module1",
         "capabilities": {
             "obp40":"true"
         }

lib/obp60task/config_obp60.json

@@ -230,6 +230,17 @@
             "obp60": "true"
         }
     },
+    {
+        "name": "smoothCharts",
+        "label": "Smooth chart lines",
+        "type": "boolean",
+        "default": "false",
+        "description": "Print chart lines with a smoothed gradient",
+        "category": "OBP60 Settings",
+        "capabilities": {
+            "obp40": "true"
+        }
+    },
     {
         "name": "lengthFormat",
         "label": "Length Format",

lib/obp60task/debugging.txt

@@ -3,4 +3,7 @@ Debugging tool
 
 log.txt = text file with error messages from terminal console
 
-tools/decoder.py -p ESP32S3 -t ~/.platformio/packages/toolchain-xtensa-esp32s3/ -e .pio/build/obp60_s3/firmware.elf log.txt
+cd /home/norbert/esp32-nmea2000-obp60
+tools/decoder.py -p ESP32S3 -t ~/.platformio/packages/toolchain-xtensa-esp32s3/ -e .pio/build/obp60_s3/firmware.elf log.txt
+
+tools/decoder.py -p ESP32S3 -t ~/.platformio/packages/toolchain-xtensa-esp32s3/ -e .pio/build/obp70_s3/firmware.elf /home/norbert/Dokumente/Multifunktionsdisplay_OBP60/Crashes/20260313/log.txt

lib/obp60task/movingAvg.cpp

@@ -1,67 +0,0 @@
-// Arduino Moving Average Library
-// https://github.com/JChristensen/movingAvg
-// Copyright (C) 2018 by Jack Christensen and licensed under
-// GNU GPL v3.0, https://www.gnu.org/licenses/gpl.html
-
-#include <movingAvg.h>
-
-// initialize - allocate the interval array
-void movingAvg::begin()
-{
-    m_readings = new int[m_interval];
-}
-
-// add a new reading and return the new moving average
-int movingAvg::reading(int newReading)
-{
-    // add each new data point to the sum until the m_readings array is filled
-    if (m_nbrReadings < m_interval) {
-        ++m_nbrReadings;
-        m_sum += newReading;
-    }
-    // once the array is filled, subtract the oldest data point and add the new one
-    else {
-        m_sum = m_sum - m_readings[m_next] + newReading;
-    }
-
-    m_readings[m_next] = newReading;
-    if (++m_next >= m_interval) m_next = 0;
-    return (m_sum + m_nbrReadings / 2) / m_nbrReadings;
-}
-
-// just return the current moving average
-int movingAvg::getAvg()
-{
-    return (m_sum + m_nbrReadings / 2) / m_nbrReadings;
-}
-
-// return the average for a subset of the data, the most recent nPoints readings.
-// for invalid values of nPoints, return zero.
-int movingAvg::getAvg(int nPoints)
-{
-    if (nPoints < 1 || nPoints > m_interval || nPoints > m_nbrReadings) {
-        return 0;
-    }
-    else {
-        long sum{0};
-        int i = m_next;
-        for (int n=0; n<nPoints; ++n) {
-            if (i == 0) {
-                i = m_interval - 1;
-            }
-            else {
-                --i;
-            }
-            sum += m_readings[i];
-        }
-        return (sum + nPoints / 2) / nPoints;
-    }
-}
-
-// start the moving average over again
-void movingAvg::reset()
-{
-    m_nbrReadings = 0;
-    m_sum = 0;
-    m_next = 0;
-}

lib/obp60task/movingAvg.h

@@ -3,27 +3,37 @@
 // Copyright (C) 2018 by Jack Christensen and licensed under
 // GNU GPL v3.0, https://www.gnu.org/licenses/gpl.html
 
+// Extended to template class for handling of multiple data types
+
 #ifndef MOVINGAVG_H_INCLUDED
 #define MOVINGAVG_H_INCLUDED
 
+template <typename T>
 class movingAvg
 {
     public:
         movingAvg(int interval)
-            : m_interval{interval}, m_nbrReadings{0}, m_sum{0}, m_next{0} {}
+            : m_interval{interval}, m_nbrReadings{0}, m_sum{0}, m_next{0}, m_readings{nullptr} {}
+        ~movingAvg() { delete[] m_readings; }
         void begin();
-        int reading(int newReading);
+        T reading(T newReading);
-        int getAvg();
+        T getAvg();
-        int getAvg(int nPoints);
+        T getAvg(int nPoints);
-        int getCount() {return m_nbrReadings;}
+        int getCount() { return m_nbrReadings; }
         void reset();
-        int* getReadings() {return m_readings;}
+        T* getReadings() { return m_readings; }
 
     private:
         int m_interval;     // number of data points for the moving average
         int m_nbrReadings;  // number of readings
-        long m_sum;         // sum of the m_readings array
+        // Sum type adapts to T: long for integers, T for floating point
+        using SumType = typename std::conditional<std::is_floating_point<T>::value, T, long>::type;
+        SumType m_sum;
         int m_next;         // index to the next reading
-        int* m_readings;    // pointer to the dynamically allocated interval array
+        T* m_readings;      // pointer to the dynamically allocated interval array
 };
+
+// Include the implementation to satisfy template instantiation requirements
+#include "movingAvg.tpp"
+
 #endif

lib/obp60task/movingAvg.tpp

@@ -0,0 +1,88 @@
+// Arduino Moving Average Library
+// https://github.com/JChristensen/movingAvg
+// Copyright (C) 2018 by Jack Christensen and licensed under
+// GNU GPL v3.0, https://www.gnu.org/licenses/gpl.html
+
+// Extended to template class for handling of multiple data types
+
+//template <typename T>
+//movingAvg<T>::movingAvg(int interval)
+//    : m_interval{interval}, m_nbrReadings{0}, m_sum{0}, m_next{0}, m_readings{nullptr}
+//{}
+
+// initialize - allocate the interval array
+template <typename T>
+void movingAvg<T>::begin()
+{
+    m_readings = new T[m_interval];
+}
+
+// add a new reading and return the new moving average
+template <typename T>
+T movingAvg<T>::reading(T newReading)
+{
+    // add each new data point to the sum until the m_readings array is filled
+    if (m_nbrReadings < m_interval) {
+        ++m_nbrReadings;
+        m_sum += newReading;
+    }
+    // once the array is filled, subtract the oldest data point and add the new one
+    else {
+        m_sum = m_sum - m_readings[m_next] + newReading;
+    }
+
+    m_readings[m_next] = newReading;
+    if (++m_next >= m_interval) m_next = 0;
+    return getAvg();
+}
+
+// just return the current moving average
+template <typename T>
+T movingAvg<T>::getAvg()
+{
+    if (m_nbrReadings == 0) return 0;
+
+    // Apply rounding for integers only
+    if (std::is_floating_point<T>::value) {
+        return m_sum / m_nbrReadings;
+    } else {
+        return (m_sum + (SumType)m_nbrReadings / 2) / m_nbrReadings;
+    }
+}
+
+// return the average for a subset of the data, the most recent nPoints readings.
+// for invalid values of nPoints, return zero.
+template <typename T>
+T movingAvg<T>::getAvg(int nPoints)
+{
+    if (nPoints < 1 || nPoints > m_interval || nPoints > m_nbrReadings) {
+        return 0;
+    }
+
+    SumType sum{0};
+    int i = m_next;
+    for (int n=0; n<nPoints; ++n) {
+        if (i == 0) {
+            i = m_interval - 1;
+        }
+        else {
+            --i;
+        }
+        sum += m_readings[i];
+    }
+
+    if (std::is_floating_point<T>::value) {
+        return sum / nPoints;
+    } else {
+        return (sum + (SumType)nPoints / 2) / nPoints; //
+    }
+}
+
+// start the moving average over again
+template <typename T>
+void movingAvg<T>::reset()
+{
+    m_nbrReadings = 0;
+    m_sum = 0;
+    m_next = 0;
+}

lib/obp60task/obp60task.cpp

@@ -9,7 +9,6 @@
 #include <NMEA0183.h>                   // NMEA0183
 #include <NMEA0183Msg.h>
 #include <NMEA0183Messages.h>
-#include <GxEPD2_BW.h>                  // GxEPD2 lib for b/w E-Ink displays
 #include "OBP60Extensions.h"            // Functions lib for extension board
 #include "OBP60Keypad.h"                // Functions for keypad
 #include "OBPDataOperations.h"          // Functions lib for data operations such as true wind calculation
@@ -284,8 +283,12 @@ void underVoltageError(CommonData &common) {
     getdisplay().setFont(&Ubuntu_Bold8pt8b);
     getdisplay().setCursor(65, 175);
     getdisplay().print("Charge battery and restart system");
-    getdisplay().nextPage();                // Partial update
+    displayNextPage();                // Partial update
+    #ifdef TFT_DISPLAY
+    getpaneldisplay().powerSave(true);      // Display power save
+    #else
     getdisplay().powerOff();                // Display power off
+    #endif
     setPortPin(OBP_POWER_EPD, false);       // Power off ePaper display
     setPortPin(OBP_POWER_SD, false);        // Power off SD card
 #else
@@ -295,7 +298,7 @@ void underVoltageError(CommonData &common) {
     buzzer(TONE4, 20);                      // Buzzer tone 4kHz 20ms
     setPortPin(OBP_POWER_50, false);        // Power rail 5.0V Off
     // Shutdown EInk display
-    getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
+    displaySetPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
     getdisplay().fillScreen(common.bgcolor);// Clear screen
     getdisplay().setTextColor(common.fgcolor);
     getdisplay().setFont(&Ubuntu_Bold20pt8b);
@@ -304,8 +307,12 @@ void underVoltageError(CommonData &common) {
     getdisplay().setFont(&Ubuntu_Bold8pt8b);
     getdisplay().setCursor(65, 175);
     getdisplay().print("To wake up repower system");
-    getdisplay().nextPage();                // Partial update
+    displayNextPage();                // Partial update
+    #ifdef TFT_DISPLAY
+    getpaneldisplay().powerSave(true);      // Display power save
+    #else
     getdisplay().powerOff();                // Display power off
+    #endif
 #endif
     while (true) {
         esp_deep_sleep_start(); // Deep Sleep without wakeup. Wakeup only after power cycle (restart).
@@ -316,7 +323,7 @@ inline bool underVoltageDetection(float voffset, float vslope) {
     // Read supply voltage
 #if defined VOLTAGE_SENSOR && defined LIPO_ACCU_1200
     float actVoltage = (float(analogRead(OBP_ANALOG0)) * 3.3 / 4096 + 0.53) * 2;   // Vin = 1/2 for OBP40
-    float minVoltage = 3.65;  // Absolut minimum volatge for 3,7V LiPo accu
+    float minVoltage = 3.65;  // Absolut minimum voltage for 3,7V LiPo accu
 #else
     float actVoltage = (float(analogRead(OBP_ANALOG0)) * 3.3 / 4096 + 0.17) * 20;   // Vin = 1/20 for OBP60
     float minVoltage = MIN_VOLTAGE;
@@ -325,6 +332,7 @@ inline bool underVoltageDetection(float voffset, float vslope) {
     return (calVoltage < minVoltage);
 }
 
+
 // OBP60 Task
 //####################################################################################
 void OBP60Task(GwApi *api){
@@ -332,7 +340,7 @@ void OBP60Task(GwApi *api){
 //    return;
     GwLog *logger=api->getLogger();
     GwConfigHandler *config=api->getConfig();
-#if defined HARDWARE_V20 || HARDWARE_V21
+#ifdef BOARD_OBP60S3
     startLedTask(api);
 #endif
     PageList allPages;
@@ -341,7 +349,7 @@ void OBP60Task(GwApi *api){
     commonData.logger=logger;
     commonData.config=config;
 
-#if defined HARDWARE_V20 || HARDWARE_V21
+#ifdef BOARD_OBP60S3
     // Keyboard coordinates for page footer
     initKeys(commonData);
 #endif
@@ -375,36 +383,47 @@ void OBP60Task(GwApi *api){
 
     #ifdef DISPLAY_GDEY042T81
         getdisplay().init(115200, true, 2, false);  // Init for Waveshare boards with "clever" reset circuit, 2ms reset pulse
+    #elif defined(TFT_DISPLAY)
+        getpaneldisplay().init();                   // Init for TFT LCD panel
     #else
         getdisplay().init(115200);                  // Init for normal displays
     #endif
 
+    #ifdef TFT_DISPLAY
+    getpaneldisplay().setRotation(0);            // Set display orientation (horizontal)
+    getpaneldisplay().setPanelOffset(0, 0);      // Use full native framebuffer coordinates
+    getpaneldisplay().fillScreen(0x0000);        // Initialize full TFT screen to black (native RGB565)
+    getpaneldisplay().setPanelOffset(OBP_TFT_OFFSET_X, OBP_TFT_OFFSET_Y); // Restore configured operating panel offset
+    #else
     getdisplay().setRotation(0);                 // Set display orientation (horizontal)
-    getdisplay().setFullWindow();                // Set full Refresh
+    #endif
-    getdisplay().firstPage();                    // set first page
+    displaySetFullWindow();                       // Set full Refresh (E-Ink only)
+    displayFirstPage();                           // set first page
     getdisplay().fillScreen(commonData.bgcolor);
     getdisplay().setTextColor(commonData.fgcolor);
-    getdisplay().nextPage();                     // Full Refresh
+    displayNextPage();                            // Full Refresh
-    getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
+    displaySetPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update (E-Ink only)
     getdisplay().fillScreen(commonData.bgcolor);
-    getdisplay().nextPage();                     // Fast Refresh
+    displayNextPage();                            // Fast Refresh
-    getdisplay().nextPage();                     // Fast Refresh
+    displayNextPage();                            // Fast Refresh
     if(String(displaymode) == "Logo + QR Code" || String(displaymode) == "Logo"){
         getdisplay().fillScreen(commonData.bgcolor);
-        getdisplay().drawBitmap(0, 0, gImage_Logo_OBP_400x300_sw, getdisplay().width(), getdisplay().height(), commonData.fgcolor); // Draw start logo
+        // draw the fixed-size logo via generic display wrapper
-        getdisplay().nextPage();                 // Fast Refresh
+        displayDrawBitmap(0, 0, gImage_Logo_OBP_400x300_sw,
-        getdisplay().nextPage();                 // Fast Refresh
+                          400, 300, commonData.fgcolor);
+        displayNextPage();                 // Fast Refresh
+        displayNextPage();                 // Fast Refresh
         delay(SHOW_TIME);                        // Logo show time
         if(String(displaymode) == "Logo + QR Code"){
             getdisplay().fillScreen(commonData.bgcolor);
             qrWiFi(systemname, wifipass, commonData.fgcolor, commonData.bgcolor);  // Show QR code for WiFi connection
-            getdisplay().nextPage();             // Fast Refresh
+            displayNextPage();             // Fast Refresh
-            getdisplay().nextPage();             // Fast Refresh
+            displayNextPage();             // Fast Refresh
             delay(SHOW_TIME);                    // QR code show time
         }
         getdisplay().fillScreen(commonData.bgcolor);
-        getdisplay().nextPage();                 // Fast Refresh
+        displayNextPage();                 // Fast Refresh
-        getdisplay().nextPage();                 // Fast Refresh
+        displayNextPage();                 // Fast Refresh
     }
     
     // Init pages
@@ -479,7 +498,8 @@ void OBP60Task(GwApi *api){
             pages[i].parameters.values.push_back(value); 
        }
 
-       // Read the specified boat data types of relevant pages and create a history buffer for each type
+       // Read the specified boat data types of relevant pages and create a history buffer for each type for later use in charts
+       // applies only for pages that uses charts
        if (pages[i].parameters.pageName == "OneValue" || pages[i].parameters.pageName == "TwoValues" || pages[i].parameters.pageName == "WindPlot") {
            for (auto pVal : pages[i].parameters.values) {
                 hstryBufferList.addBuffer(pVal->getName());
@@ -722,9 +742,12 @@ void OBP60Task(GwApi *api){
             if(millis() > starttime4 + 8000 && delayedDisplayUpdate == true){
                 starttime1 = millis();
                 starttime2 = millis();
-                getdisplay().setFullWindow();    // Set full update
+                displaySetFullWindow();            // Set full update
+                #ifdef TFT_DISPLAY
+                // TFT LCD doesn't need refresh operations
+                #else
                 if(fastrefresh == "true"){
-                    getdisplay().nextPage();                     // Full update
+                    displayNextPage();                     // Full update
                 }
                 else{
                     getdisplay().fillScreen(commonData.fgcolor); // Clear display
@@ -734,13 +757,14 @@ void OBP60Task(GwApi *api){
                     #else
                         getdisplay().init(115200);               // Init for normal displays
                     #endif
-                    getdisplay().firstPage();                    // Full update
+                    displayFirstPage();                    // Full update
-                    getdisplay().nextPage();                     // Full update
+                    displayNextPage();                     // Full update
 //                    getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
 //                    getdisplay().fillScreen(commonData.bgcolor); // Clear display
 //                    getdisplay().nextPage();                     // Partial update
 //                    getdisplay().nextPage();                     // Partial update
                 }
+                #endif
                 delayedDisplayUpdate = false;
             }
 
@@ -750,9 +774,12 @@ void OBP60Task(GwApi *api){
                 starttime1 = millis();
                 starttime2 = millis();
                 LOG_DEBUG(GwLog::DEBUG,"E-Ink full refresh first 5 min");
-                getdisplay().setFullWindow();    // Set full update
+                displaySetFullWindow();            // Set full update
+                #ifdef TFT_DISPLAY
+                // TFT LCD doesn't need refresh operations
+                #else
                 if(fastrefresh == "true"){
-                    getdisplay().nextPage();                     // Full update
+                    displayNextPage();                     // Full update
                 }
                 else{
                     getdisplay().fillScreen(commonData.fgcolor); // Clear display
@@ -762,19 +789,23 @@ void OBP60Task(GwApi *api){
                     #else
                         getdisplay().init(115200);               // Init for normal displays
                     #endif
-                    getdisplay().firstPage();                    // Full update
+                    displayFirstPage();                    // Full update
-                    getdisplay().nextPage();                     // Full update
+                    displayNextPage();                     // Full update
 //                    getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
 //                    getdisplay().fillScreen(commonData.bgcolor); // Clear display
 //                    getdisplay().nextPage();                     // Partial update
 //                    getdisplay().nextPage();                     // Partial update
                 }
+                #endif
             }
 
             // Subtask E-Ink full refresh
             if(millis() > starttime2 + fullrefreshtime * 60 * 1000){
                 starttime2 = millis();
                 LOG_DEBUG(GwLog::DEBUG,"E-Ink full refresh");
+                #ifdef TFT_DISPLAY
+                // TFT LCD: no special refresh
+                #else
                 getdisplay().setFullWindow();    // Set full update
                 if(fastrefresh == "true"){
                     getdisplay().nextPage();                     // Full update
@@ -794,6 +825,7 @@ void OBP60Task(GwApi *api){
 //                    getdisplay().nextPage();                     // Partial update
 //                    getdisplay().nextPage();                     // Partial update
                 }
+                #endif
             }        
                 
             // Refresh display data, default all 1s
@@ -806,16 +838,15 @@ void OBP60Task(GwApi *api){
             if(millis() > starttime3 + pagetime){
                 LOG_DEBUG(GwLog::DEBUG,"Page with refreshtime=%d", pagetime);
                 starttime3 = millis();
+                bool pageChanged = (lastPage != pageNumber);
 
                 //refresh data from api
                 api->getBoatDataValues(boatValues.numValues,boatValues.allBoatValues);
                 api->getStatus(commonData.status);
 
-                if (calcTrueWnds) {
+                trueWind.handleWinds(calcTrueWnds); // calculate true wind data from apparent wind values
-                    trueWind.addWinds(); // calculate true wind data from apparent wind values
-                }
                 calibrationDataList.handleCalibration(&boatValues); // Process calibration for all boat data in <calibrationDataList>
-                hstryBufferList.handleHstryBufs(useSimuData, commonData); // Handle history buffers for certain boat data for windplot page and other usage
+                hstryBufferList.handleHstryBufs(useSimuData, commonData); // Handle history buffers for certain boat data for charts and other usage
 
                 // Clear display
                 // getdisplay().fillRect(0, 0, getdisplay().width(), getdisplay().height(), commonData.bgcolor);
@@ -842,16 +873,16 @@ void OBP60Task(GwApi *api){
                     if (currentPage == NULL){
                         LOG_DEBUG(GwLog::ERROR,"page number %d not found", pageNumber);
                         // Error handling for missing page
-                        getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
+                        displaySetPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
                         getdisplay().fillScreen(commonData.bgcolor);  // Clear display
                         getdisplay().drawXBitmap(200 - unknown_width / 2, 150 - unknown_height / 2, unknown_bits, unknown_width, unknown_height, commonData.fgcolor);
                         getdisplay().setCursor(140, 250);
                         getdisplay().setFont(&Atari16px);
                         getdisplay().print("Here be dragons!");
-                        getdisplay().nextPage(); // Partial update (fast)
+                        displayNextPage(); // Partial update (fast)
                     }
                     else{
-                        if (lastPage != pageNumber){
+                        if (pageChanged){
 			    if (lastPage != -1){ // skip cleanup if we are during startup, and no page has been displayed yet. 
                                 pages[lastPage].page->leavePage(pages[lastPage].parameters); // call page cleanup code
                                 if (hasFRAM) fram.write(FRAM_PAGE_NO, pageNumber); // remember new page for device restart
@@ -871,10 +902,12 @@ void OBP60Task(GwApi *api){
                             displayAlarm(commonData);
                         }
                         if (ret & PAGE_UPDATE) {
-                            getdisplay().nextPage(); // Partial update (fast)
+                            displayNextPage(); // Partial update (fast)
                         }
                         if (ret & PAGE_HIBERNATE) {
+    #ifndef TFT_DISPLAY
                             getdisplay().hibernate();
+    #endif
                         }
                     }
 

lib/obp60task/obp60task.h

@@ -3,7 +3,7 @@
 //we only compile for some boards
 #if defined BOARD_OBP60S3 || defined BOARD_OBP40S3
     #define USBSerial Serial
-    #ifdef HARDWARE_V21
+    #ifdef BOARD_OBP60S3
         // CAN NMEA2000
         #define ESP32_CAN_TX_PIN 46
         #define ESP32_CAN_RX_PIN 3
@@ -35,13 +35,19 @@
     // OBP60 Task
     void OBP60Task(GwApi *param);
     DECLARE_USERTASK_PARAM(OBP60Task, 35000);   // Need 35k RAM as stack size
-    #ifdef HARDWARE_V21
+    #if defined(BOARD_OBP60S3) && defined(TFT_DISPLAY)
+    DECLARE_CAPABILITY(obp70,true);
+    #endif
+    #if defined(BOARD_OBP60S3) && !defined(TFT_DISPLAY)
     DECLARE_CAPABILITY(obp60,true);
     #endif
     #ifdef BOARD_OBP40S3
     DECLARE_CAPABILITY(obp40,true)
     #endif
-    #ifdef BOARD_OBP60S3
+    #if defined(BOARD_OBP60S3) && defined(TFT_DISPLAY)
+    DECLARE_STRING_CAPABILITY(HELP_URL, "https://obp60-v2-docu.readthedocs.io/en/latest/"); // Link to help pages
+    #endif
+    #if defined(BOARD_OBP60S3) && !defined(TFT_DISPLAY)
     DECLARE_STRING_CAPABILITY(HELP_URL, "https://obp60-v2-docu.readthedocs.io/en/latest/"); // Link to help pages
     #endif
     #ifdef BOARD_OBP40S3

lib/obp60task/patches/01-nmea2000.patch

@@ -21,11 +21,11 @@ index 88f9690..9663a65 100644
          virtual ~GwApi(){}
  };
 diff --git a/lib/obp60task/OBP60Extensions.h b/lib/obp60task/OBP60Extensions.h
-index 604c356..2fe4496 100644
+index 9e2bc99..34eaeac 100644
 --- a/lib/obp60task/OBP60Extensions.h
 +++ b/lib/obp60task/OBP60Extensions.h
-@@ -15,6 +15,9 @@
+@@ -29,6 +29,9 @@
- #define MOUNT_POINT "/sdcard"
+     #define MOUNT_POINT "/sdcard"
  #endif
  
 +// Patches to apply to gateway code
@@ -61,7 +61,7 @@ index 1b007f8..90087d4 100644
 \ No newline at end of file
 +}
 diff --git a/src/main.cpp b/src/main.cpp
-index 44c715f..fdb0366 100644
+index 95d5d1e..01fcd32 100644
 --- a/src/main.cpp
 +++ b/src/main.cpp
 @@ -100,6 +100,7 @@ GwLog logger(LOGLEVEL,NULL);

lib/obp60task/patches/02-wpname.patch

@@ -0,0 +1,115 @@
+diff --git a/lib/boatData/GwBoatData.cpp b/lib/boatData/GwBoatData.cpp
+index 424ebe4..b717097 100644
+--- a/lib/boatData/GwBoatData.cpp
++++ b/lib/boatData/GwBoatData.cpp
+@@ -6,6 +6,7 @@
+ #define GWTYPE_UINT32 2
+ #define GWTYPE_UINT16 3
+ #define GWTYPE_INT16 4
++#define GWTYPE_STRING 5
+ #define GWTYPE_USER 100
+ 
+ class GwBoatItemTypes
+@@ -15,6 +16,7 @@ public:
+     static int getType(const uint16_t &x) { return GWTYPE_UINT16; }
+     static int getType(const int16_t &x) { return GWTYPE_INT16; }
+     static int getType(const double &x) { return GWTYPE_DOUBLE; }
++    static int getType(const String &x) { return GWTYPE_STRING; }
+     static int getType(const GwSatInfoList &x) { return GWTYPE_USER + 1; }
+ };
+ 
+@@ -252,6 +254,10 @@ static void writeToString(GwTextWriter *writer, const int16_t &value)
+ {
+     writer->writeInteger(value);
+ }
++static void writeToString(GwTextWriter *writer, String value)
++{
++    writer->writeString(value.c_str());
++}
+ static void writeToString(GwTextWriter *writer, GwSatInfoList &value)
+ {
+     writer->writeInteger(value.getNumSats());
+@@ -288,6 +294,8 @@ template class GwBoatItem<double>;
+ template class GwBoatItem<uint32_t>;
+ template class GwBoatItem<uint16_t>;
+ template class GwBoatItem<int16_t>;
++template class GwBoatItem<String>;
++
+ void GwSatInfoList::houseKeeping(unsigned long ts)
+ {
+     if (ts == 0)
+diff --git a/lib/boatData/GwBoatData.h b/lib/boatData/GwBoatData.h
+index ae50b3f..5b32f70 100644
+--- a/lib/boatData/GwBoatData.h
++++ b/lib/boatData/GwBoatData.h
+@@ -58,6 +58,7 @@ class GwBoatItemBase{
+         GWSC(formatRot);
+         GWSC(formatDate);
+         GWSC(formatTime);
++        GWSC(formatName);
+     protected:
+         int type;
+         unsigned long lastSet=0;
+@@ -92,6 +93,7 @@ class GwBoatItemBase{
+         virtual int getLastSource(){return lastUpdateSource;}
+         virtual void refresh(unsigned long ts=0){uls(ts);}
+         virtual double getDoubleValue()=0;
++        virtual String getStringValue()=0;
+         String getName(){return name;}
+         const String & getFormat() const{return format;}
+         virtual void setInvalidTime(GwConfigHandler *cfg);
+@@ -120,7 +122,19 @@ template<class T> class GwBoatItem : public GwBoatItemBase{
+             if (! isValid(millis())) return defaultv;
+             return data;
+         }
+-        virtual double getDoubleValue(){return (double)data;}
++        virtual double getDoubleValue(){
++            if constexpr (std::is_same<T, String>::value) {
++                return 0.0;
++                // TODO any better ideas?
++                // perhaps return std::numeric_limits<double>::quiet_NaN();
++            } else {
++                return (double)data;
++            }
++        }
++        virtual String getStringValue(){
++            return (String)data;
++        }
++
+         virtual void fillString();
+         virtual void toJsonDoc(GwJsonDocument *doc, unsigned long minTime);
+         virtual int getLastSource(){return lastUpdateSource;}
+@@ -235,6 +249,7 @@ class GwBoatData{
+     GWBOATDATA(double,XTE,formatXte) // cross track error
+     GWBOATDATA(double,WPLat,formatLatitude) // waypoint latitude
+     GWBOATDATA(double,WPLon,formatLongitude) // waypoint longitude
++    GWBOATDATA(String,WPName,formatName) // waypoint name
+     GWSPECBOATDATA(GwBoatDataSatList,SatInfo,GwSatInfoList::toType,formatFixed0);
+     public:
+         GwBoatData(GwLog *logger, GwConfigHandler *cfg);
+diff --git a/lib/nmea0183ton2k/NMEA0183DataToN2K.cpp b/lib/nmea0183ton2k/NMEA0183DataToN2K.cpp
+index 6989570..238af38 100644
+--- a/lib/nmea0183ton2k/NMEA0183DataToN2K.cpp
++++ b/lib/nmea0183ton2k/NMEA0183DataToN2K.cpp
+@@ -355,6 +355,7 @@ private:
+             AppendN2kRouteWPInfo(n2kMsg,destinationId,rmb.destID,rmb.latitude,rmb.longitude);
+             send(n2kMsg,msg.sourceId);
+             }
++        boatData->WPName->update(String(rmb.destID), msg.sourceId);
+     }
+     void convertRMC(const SNMEA0183Msg &msg)
+     {
+diff --git a/platformio.ini b/platformio.ini
+index b738131..e131a6e 100644
+--- a/platformio.ini
++++ b/platformio.ini
+@@ -68,6 +68,9 @@ lib_ldf_mode = off
+ monitor_speed = 115200
+ build_flags = 
+ 	-D PIO_ENV_BUILD=$PIOENV
++	-std=gnu++17
++build_unflags =
++	-std=gnu++11
+ 
+ [sensors]
+ ; collect the libraries for sensors here

lib/obp60task/platformio.ini

@@ -4,9 +4,66 @@
 #by uncommenting the next line
 
 default_envs = 
+    obp70_s3
     obp60_s3
     obp40_s3
 
+[env:obp70_s3]
+platform = espressif32@6.8.1
+board_build.variants_dir = variants
+board = obp70_s3_n16r8  #ESP32-S3 N16R8, 16MB flash, 8MB PSRAM, production series
+board_build.partitions = default_16MB.csv #ESP32-S3 N16, 16MB flash
+custom_config = lib/obp60task/config_obp70.json
+custom_script = lib/obp60task/extra_task.py
+framework = arduino
+lib_deps = 
+    ${basedeps.lib_deps}
+    Wire
+    SPI
+    ESP32time
+    HTTPClient
+    WiFiClientSecure
+    esphome/AsyncTCP-esphome@2.1.1
+    robtillaart/PCF8574@0.3.9
+    adafruit/Adafruit Unified Sensor @ 1.1.13
+    blemasle/MCP23017@2.0.0
+    adafruit/Adafruit BusIO@1.5.0
+    adafruit/Adafruit GFX Library@1.11.9
+    #zinggjm/GxEPD2@1.5.8
+    #https://github.com/ZinggJM/GxEPD2
+    https://github.com/thooge/GxEPD2
+    sstaub/Ticker@4.4.0
+    adafruit/Adafruit BMP280 Library@2.6.2
+    adafruit/Adafruit BME280 Library@2.2.2
+    adafruit/Adafruit BMP085 Library@1.2.1
+    enjoyneering/HTU21D@1.2.1
+    robtillaart/INA226@0.2.0
+    paulstoffregen/OneWire@2.3.8
+    milesburton/DallasTemperature@3.11.0
+    signetica/SunRise@2.0.2
+    adafruit/Adafruit FRAM I2C@2.0.3
+    lovyan03/LovyanGFX@1.2.19
+build_flags=
+    #https://thingpulse.com/usb-settings-for-logging-with-the-esp32-s3-in-platformio/?srsltid=AfmBOopGskbkr4GoeVkNlFaZXe_zXkLceKF6Rn-tmoXABCeAR2vWsdHL
+#    -D CORE_DEBUG_LEVEL=1           #Debug level for CPU core via CDC (serial device)
+#    -D TIME=$UNIX_TIME              #Set PC time for RTC (only settable via VSC)
+    -D DISABLE_DIAGNOSTIC_OUTPUT    #Disable diagnostic output for GxEPD2 lib
+    -D BOARD_OBP60S3                #Board OBP60 V2.1 with ESP32S3
+#    -D HARDWARE_V20                 #OBP60 hardware revision V2.0
+    -D HARDWARE_V21                 #OBP60 hardware revision V2.1
+    -D TFT_DISPLAY                  #Enable TFT LCD display path (instead of E-Ink)
+#    -D TFT_320x480_ST7796           #TFT panel type: ST7796 (320x480, 80 MHz), best performance
+    -D TFT_320x480_ILI9488          #TFT panel type: ILI9488 (320x480, 40 MHz), lower performance
+    -D OBP_TFT_ENABLE_SCALING=1     #TFT scaling on/off (1=scale to max Y=320, 0=no scaling)
+    -D OBP_TFT_SCALE_ANTIALIAS=1    #Antialiasing for TFT scaling (1=on, 0=off)
+#    -D ENABLE_PATCHES               #enable patching of gateway code
+    ${env.build_flags}
+#CONFIG_ESP_TASK_WDT_TIMEOUT_S = 10 #Task Watchdog timeout period (seconds) [1...60] 5 default
+upload_port = /dev/ttyACM0          #OBP60 download via USB-C direct
+upload_protocol = esptool           #firmware upload via USB OTG seriell, by first upload need to set the ESP32-S3 in the upload mode with shortcut GND to Pin27 
+upload_speed = 230400
+monitor_speed = 115200    
+
 [env:obp60_s3]
 platform = espressif32@6.8.1
 board_build.variants_dir = variants
@@ -26,7 +83,7 @@ lib_deps =
     ESP32time
     HTTPClient
     WiFiClientSecure
-    esphome/AsyncTCP-esphome@2.0.1
+    esphome/AsyncTCP-esphome@2.1.1
     robtillaart/PCF8574@0.3.9
     adafruit/Adafruit Unified Sensor @ 1.1.13
     blemasle/MCP23017@2.0.0
@@ -82,7 +139,7 @@ lib_deps =
     ESP32time
     HTTPClient
     WiFiClientSecure
-    esphome/AsyncTCP-esphome@2.0.1
+    esphome/AsyncTCP-esphome@2.1.1
     robtillaart/PCF8574@0.3.9
     adafruit/Adafruit Unified Sensor @ 1.1.13
     blemasle/MCP23017@2.0.0

lib/obp60task/run_obp70_s3

@@ -0,0 +1,10 @@
+#!/bin/bash
+
+# This script compile the software für OBP60-S3
+
+# Attention! Start this cript only in the Gitpod Docker container.
+# Start the script with: bash run
+
+# Compile the firmware
+echo "Compiling Firmware"
+platformio run -e obp70_s3

lib/statistics/GwStatistics.h

@@ -1,5 +1,13 @@
 #pragma once
 #include <Arduino.h>
+#include <freertos/FreeRTOS.h>
+#include <freertos/task.h>
+
+static inline int64_t gwMonotonicUs(){
+  TickType_t ticks=xTaskGetTickCount();
+  return ((int64_t)ticks) * ((int64_t)portTICK_PERIOD_MS) * 1000;
+}
+
 class TimeAverage{
   double factor=0.3;
   double current=0;
@@ -70,7 +78,7 @@ class TimeMonitor{
     }
     void reset(){
       if (last != 0 && start != 0) loop->add(last-start);
-      start=esp_timer_get_time();
+      start=gwMonotonicUs();
       for (size_t i=0;i<len;i++) current[i]=0;
       count++;
       
@@ -114,7 +122,7 @@ class TimeMonitor{
       for (size_t i=0;i<index;i++){
         if (current[i] != 0) sv=current[i];
       }
-      int64_t now=esp_timer_get_time();
+      int64_t now=gwMonotonicUs();
       last=now;
       current[index]=now;
       int64_t currentv=now-sv;

platformio.ini

@@ -21,8 +21,8 @@ lib_deps =
     ttlappalainen_NMEA2000=https://github.com/wellenvogel/NMEA2000.git#20251126
 	ttlappalainen/NMEA0183 @ 1.10.1
 	ArduinoJson @ 6.18.5
-	AsyncTCP-esphome @ 2.0.1
+	AsyncTCP-esphome @ 2.1.1
-	ottowinter/ESPAsyncWebServer-esphome@2.0.1
+	ottowinter/ESPAsyncWebServer-esphome@3.4.0
 	FS
 	Preferences
 	ESPmDNS
@@ -34,8 +34,8 @@ lib_deps=
 	ttlappalainen_NMEA2000=symlink://../NMEA2000
 	ttlappalainen/NMEA0183 @ 1.10.1
 	ArduinoJson @ 6.18.5
-	AsyncTCP-esphome @ 2.0.1
+	AsyncTCP-esphome @ 2.1.1
-	ottowinter/ESPAsyncWebServer-esphome@2.0.1
+	ottowinter/ESPAsyncWebServer-esphome@3.4.0
 	FS
 	Preferences
 	ESPmDNS

src/main.cpp

@@ -767,7 +767,7 @@ void loopFunction(void *){
     //if(Serial1.available()) {}
     //if(Serial.available()) {}
     //if(Serial2.available()) {}
-    //delay(1);
+    vTaskDelay(1);
   }
 }
 const String USERPREFIX="/api/user/";

variants/obp70s3/pins_arduino.h

@@ -0,0 +1,74 @@
+#ifndef Pins_Arduino_h
+#define Pins_Arduino_h
+
+#include <stdint.h>
+#include "soc/soc_caps.h"
+
+#define USB_VID 0x303a
+#define USB_PID 0x1001
+
+/*
+#define EXTERNAL_NUM_INTERRUPTS 46
+#define NUM_DIGITAL_PINS        48
+#define NUM_ANALOG_INPUTS       20
+
+// Multi Function Display OBP60 V2.0
+static const uint8_t LED_BUILTIN = SOC_GPIO_PIN_COUNT+48;
+#define BUILTIN_LED  LED_BUILTIN // backward compatibility
+#define LED_BUILTIN LED_BUILTIN
+#define RGB_BUILTIN LED_BUILTIN
+#define RGB_BRIGHTNESS 64
+
+#define analogInputToDigitalPin(p)  (((p)<20)?(analogChannelToDigitalPin(p)):-1)
+#define digitalPinToInterrupt(p)    (((p)<48)?(p):-1)
+#define digitalPinHasPWM(p)         (p < 46)
+*/
+
+static const uint8_t TX = 43;
+static const uint8_t RX = 44;
+
+static const uint8_t SDA = 47;
+static const uint8_t SCL = 21;
+
+static const uint8_t SS    = 39;
+static const uint8_t MOSI  = 48;
+static const uint8_t MISO  = 11;
+static const uint8_t SCK   = 38;
+
+static const uint8_t A0 = 1;
+static const uint8_t A1 = 2;
+static const uint8_t A2 = 3;
+static const uint8_t A3 = 4;
+static const uint8_t A4 = 5;
+static const uint8_t A5 = 6;
+static const uint8_t A6 = 7;
+static const uint8_t A7 = 8;
+static const uint8_t A8 = 9;
+static const uint8_t A9 = 10;
+static const uint8_t A10 = 11;
+static const uint8_t A11 = 12;
+static const uint8_t A12 = 13;
+static const uint8_t A13 = 14;
+static const uint8_t A14 = 15;
+static const uint8_t A15 = 16;
+static const uint8_t A16 = 17;
+static const uint8_t A17 = 18;
+static const uint8_t A18 = 19;
+static const uint8_t A19 = 20;
+
+static const uint8_t T1 = 1;
+static const uint8_t T2 = 2;
+static const uint8_t T3 = 3;
+static const uint8_t T4 = 4;
+static const uint8_t T5 = 5;
+static const uint8_t T6 = 6;
+static const uint8_t T7 = 7;
+static const uint8_t T8 = 8;
+static const uint8_t T9 = 9;
+static const uint8_t T10 = 10;
+static const uint8_t T11 = 11;
+static const uint8_t T12 = 12;
+static const uint8_t T13 = 13;
+static const uint8_t T14 = 14;
+
+#endif /* Pins_Arduino_h */