System page with N2K device list by improved patching feature and patch

lib/gwwifi/GWWifi.h

@@ -2,6 +2,9 @@
 #define _GWWIFI_H
 #include <WiFi.h>
 #include <GWConfig.h>
+#include <freertos/FreeRTOS.h>
+#include <freertos/semphr.h>
+
 class GwWifi{
     private:
         const GwConfigHandler *config;
@@ -16,13 +19,19 @@ class GwWifi{
         bool apActive=false;
         bool fixedApPass=true;
         bool clientIsConnected=false;
+        SemaphoreHandle_t wifiMutex=nullptr;
+        static const TickType_t WIFI_MUTEX_TIMEOUT=pdMS_TO_TICKS(1000);
+        bool acquireMutex();
+        void releaseMutex();
     public:
         const char *AP_password = "esp32nmea2k"; 
         GwWifi(const GwConfigHandler *config,GwLog *log, bool fixedApPass=true);
+        ~GwWifi();
         void setup();
         void loop();
         bool clientConnected();
-        bool connectClient();
+        bool connectClient();          // Blocking version
+        bool connectClientAsync();     // Non-blocking version for other tasks
         String apIP();
         bool isApActive(){return apActive;}
         bool isClientActive(){return wifiClient->asBoolean();}

lib/gwwifi/GwWifi.cpp

@@ -1,7 +1,6 @@
 #include <esp_wifi.h>
 #include "GWWifi.h"
 
-
 GwWifi::GwWifi(const GwConfigHandler *config,GwLog *log, bool fixedApPass){
     this->config=config;
     this->logger=log;
@@ -9,6 +8,28 @@ GwWifi::GwWifi(const GwConfigHandler *config,GwLog *log, bool fixedApPass){
     wifiSSID=config->getConfigItem(config->wifiSSID,true);
     wifiPass=config->getConfigItem(config->wifiPass,true);
     this->fixedApPass=fixedApPass;
+    wifiMutex=xSemaphoreCreateMutex();
+    if (wifiMutex==nullptr){
+        LOG_DEBUG(GwLog::ERROR,"GwWifi: unable to create mutex");
+    }
+}
+
+GwWifi::~GwWifi(){
+    if (wifiMutex!=nullptr){
+        vSemaphoreDelete(wifiMutex);
+        wifiMutex=nullptr;
+    }
+}
+
+bool GwWifi::acquireMutex(){
+    if (wifiMutex==nullptr) return false;
+    return xSemaphoreTake(wifiMutex,WIFI_MUTEX_TIMEOUT)==pdTRUE;
+}
+
+void GwWifi::releaseMutex(){
+    if (wifiMutex!=nullptr){
+        xSemaphoreGive(wifiMutex);
+    }
 }
 void GwWifi::setup(){
     LOG_DEBUG(GwLog::LOG,"Wifi setup");
@@ -85,8 +106,14 @@ bool GwWifi::connectInternal(){
     if (wifiClient->asBoolean()){
         clientIsConnected=false;
         LOG_DEBUG(GwLog::LOG,"creating wifiClient ssid=%s",wifiSSID->asString().c_str());
+        // CRITICAL SECTION: WiFi-Operationen müssen serialisiert werden
+        if (!acquireMutex()){
+            LOG_DEBUG(GwLog::ERROR,"GwWifi: mutex timeout in connectInternal");
+            return false;
+        }
         WiFi.setAutoReconnect(false); //#102
         wl_status_t rt=WiFi.begin(wifiSSID->asCString(),wifiPass->asCString());
+        releaseMutex();
         LOG_DEBUG(GwLog::LOG,"wifiClient connect returns %d",(int)rt);
         lastConnectStart=millis();
         return true;
@@ -104,8 +131,20 @@ void GwWifi::loop(){
             if (lastConnectStart > now || (lastConnectStart + RETRY_MILLIS) < now)
             {
                 LOG_DEBUG(GwLog::LOG,"wifiClient: retry connect to %s", wifiSSID->asCString());
-                WiFi.disconnect();
-                connectInternal();
+
+                // CRITICAL SECTION: WiFi-Operationen müssen serialisiert werden
+                if (acquireMutex()){
+                    WiFi.disconnect(true); 
+                    delay(300);
+                    esp_wifi_stop();
+                    delay(100);
+                    esp_wifi_start();
+                    releaseMutex();
+                    connectInternal();
+                }
+                else{
+                    LOG_DEBUG(GwLog::ERROR,"GwWifi: mutex timeout in loop");
+                }
             }
         }
         else{
@@ -126,11 +165,42 @@ void GwWifi::loop(){
         }
     }
 }
+
 bool GwWifi::clientConnected(){
-    return WiFi.status() == WL_CONNECTED;
+    // CRITICAL SECTION: WiFi.status() muss geschützt werden
+    if (!acquireMutex()){
+        LOG_DEBUG(GwLog::ERROR,"GwWifi: mutex timeout in clientConnected");
+        return false;  // Conservative: nehme an, nicht verbunden
+    }
+    bool result = WiFi.status() == WL_CONNECTED;
+    releaseMutex();
+    return result;
 };
+
 bool GwWifi::connectClient(){
+    // CRITICAL SECTION: Disconnect und Connect müssen atomar sein
+    if (!acquireMutex()){
+        LOG_DEBUG(GwLog::ERROR,"GwWifi: mutex timeout in connectClient");
+        return false;
+    }
     WiFi.disconnect();
+    releaseMutex();
+    return connectInternal();
+}
+
+bool GwWifi::connectClientAsync(){
+    // Non-blocking version: Versuche Mutex zu nehmen, gib aber sofort auf
+    // Ideal für Tasks, die nicht blockieren dürfen
+    if (wifiMutex==nullptr){
+        LOG_DEBUG(GwLog::ERROR,"GwWifi: mutex not initialized in connectClientAsync");
+        return false;
+    }
+    if (xSemaphoreTake(wifiMutex, 0)!=pdTRUE){
+        LOG_DEBUG(GwLog::LOG,"GwWifi: connectClientAsync skipped - WiFi busy");
+        return false;  // WiFi ist aktuell busy, versuche es später nochmal
+    }
+    WiFi.disconnect();
+    xSemaphoreGive(wifiMutex);
     return connectInternal();
 }
 

lib/obp60task/NetworkClient.cpp

@@ -1,4 +1,7 @@
 #include "NetworkClient.h"
+#include "GWWifi.h"             // WiFi management (thread-safe)
+
+extern GwWifi gwWifi;   // Extern declaration of global WiFi instance
 
 extern "C" {
     #include "puff.h"
@@ -51,8 +54,13 @@ bool NetworkClient::httpGetGzip(const String& url, uint8_t*& outData, size_t& ou
     const size_t capacity = READLIMIT;   // Read limit for data (can be adjusted in NetworkClient.h)
     uint8_t* buffer = (uint8_t*)malloc(capacity);
 
+    if (!gwWifi.clientConnected()) {
+        if (DEBUGING) {Serial.println("No WiFi connection");}
+        return false;
+    }
+    
     if (!buffer) {
-        if (DEBUG) {Serial.println("Malloc failed (buffer");}
+        if (DEBUGING) {Serial.println("Malloc failed buffer");}
         return false;
     }
 
@@ -106,7 +114,7 @@ bool NetworkClient::httpGetGzip(const String& url, uint8_t*& outData, size_t& ou
         len += read;
         lastData = millis();
 
-        if (DEBUG) {Serial.printf("Read chunk: %d (total: %d)\n", read, (int)len);}
+        if (DEBUGING) {Serial.printf("Read chunk: %d (total: %d)\n", read, (int)len);}
 
         if (len < 20) continue;  // Not enough data for header
 
@@ -122,7 +130,7 @@ bool NetworkClient::httpGetGzip(const String& url, uint8_t*& outData, size_t& ou
 
         int res = puff(test, &testLen, buffer + headerOffset, &srcLen);
         if (res == 0) {
-            if (DEBUG) {Serial.printf("Decompress OK! Size: %lu bytes\n", testLen);}
+            if (DEBUGING) {Serial.printf("Decompress OK! Size: %lu bytes\n", testLen);}
             outData = test;
             outLen = testLen;
             complete = true;
@@ -167,7 +175,7 @@ bool NetworkClient::fetchAndDecompressJson(const String& url) {
         return false;
     }
 
-    if (DEBUG) {Serial.println("JSON OK!");}
+    if (DEBUGING) {Serial.println("JSON OK!");}
     _valid = true;
     return true;
 }

lib/obp60task/NetworkClient.h

@@ -3,7 +3,7 @@
 #include <WiFi.h>
 #include <HTTPClient.h>
 
-#define DEBUG false             // Debug flag for NetworkClient for more live information
+#define DEBUGING false             // 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

lib/obp60task/OBP60Extensions.cpp

@@ -923,7 +923,7 @@ void solarGraphic(uint x, uint y, int pcolor, int bcolor){
 
 }
 
-// Generator graphic with fill level
+// Generator graphic
 void generatorGraphic(uint x, uint y, int pcolor, int bcolor){
     // Show battery
         int xb = x;     // X position
@@ -940,6 +940,74 @@ void generatorGraphic(uint x, uint y, int pcolor, int bcolor){
         getdisplay().print("G");
 }
 
+// Display rudder position as horizontal bargraph with configurable +/- range (degrees)
+void displayRudderPosition(int rudderPosition, uint8_t rangeDeg, uint16_t cx, uint16_t cy, uint16_t fg, uint16_t bg){
+    const int w = 360;
+    const int h = 20;
+    const int t = 3; // Line thickness
+    const int halfw = w/2;
+    const int halfh = h/2;
+    // Calculate top-left of bar (cx,cy are center of 0°)
+    int left = int(cx) - halfw;
+    int top = int(cy) - halfh;
+
+    // clamp provided range to allowed bounds [10,45]
+    if (rangeDeg < 10) rangeDeg = 10;
+    if (rangeDeg > 45) rangeDeg = 45;
+
+    // Pixels per degree for +/-rangeDeg -> total span = 2*rangeDeg
+    const float pxPerDeg = float(w) / (2.0f * float(rangeDeg));
+
+    // Draw outer border (thickness t)
+    for (int i = 0; i < t; i++) {
+        getdisplay().drawRect(left + i, top + i, w - 2 * i, h - 2 * i, fg);
+    }
+
+    // Fill inner area with background
+    getdisplay().fillRect(left + t, top + t, w - 2 * t, h - 2 * t, bg);
+
+    // Draw center line
+    getdisplay().drawRect(cx - 1, top + 1, 3 , h - 2, fg);
+
+    // Clamp rudder position to -rangeDeg..rangeDeg
+    if (rudderPosition > (int)rangeDeg) rudderPosition = (int)rangeDeg;
+    if (rudderPosition < -((int)rangeDeg)) rudderPosition = -((int)rangeDeg);
+
+    // Compute fill width in pixels
+    int fillPx = int(round(rudderPosition * pxPerDeg)); // positive -> right
+
+    // Fill area from center to position (if non-zero)
+    int centerx = cx;
+    int innerTop = top + t;
+    int innerH = h - 2 * t;
+    if (fillPx > 0) {
+        // Right side
+        getdisplay().fillRect(centerx, innerTop, fillPx, innerH, fg);
+    } else if (fillPx < 0) {
+        // Left side
+        getdisplay().fillRect(centerx + fillPx, innerTop, -fillPx, innerH, fg);
+    }
+
+    
+    // Draw tick marks every 5° and labels outside the bar
+    getdisplay().setTextColor(fg);
+    getdisplay().setFont(&Ubuntu_Bold8pt8b);
+    for (int angle = -((int)rangeDeg); angle <= (int)rangeDeg; angle += 5) {
+        int xpos = int(round(centerx + angle * pxPerDeg));
+        // Vertical tick inside bar
+        getdisplay().drawLine(xpos, top, xpos, top + h + 2, fg);
+        // Label outside: below the bar
+        String lbl = String(angle);
+        int16_t bx, by;
+        uint16_t bw, bh;
+        getdisplay().getTextBounds(lbl, 0, 0, &bx, &by, &bw, &bh);
+        int16_t tx = xpos - bw/2;
+        int16_t ty = top + h + bh + 5; // A little spacing
+        getdisplay().setCursor(tx, ty);
+        getdisplay().print(lbl);
+    }
+}
+
 // Function to handle HTTP image request
 // http://192.168.15.1/api/user/OBP60Task/screenshot
 void doImageRequest(GwApi *api, int *pageno, const PageStruct pages[MAX_PAGE_NUMBER], AsyncWebServerRequest *request) {

lib/obp60task/OBP60Extensions.h

@@ -128,6 +128,10 @@ void solarGraphic(uint x, uint y, int pcolor, int bcolor);                  // S
 void generatorGraphic(uint x, uint y, int pcolor, int bcolor);              // Generator graphic
 void startLedTask(GwApi *api);
 
+// Display rudder position as horizontal bargraph with configurable +/- range (degrees)
+// 'rangeDeg' is unsigned and will be clamped to [10,45]
+void displayRudderPosition(int rudderPosition, uint8_t rangeDeg, uint16_t cx, uint16_t cy, uint16_t fg, uint16_t bg);
+
 void doImageRequest(GwApi *api, int *pageno, const PageStruct pages[MAX_PAGE_NUMBER], AsyncWebServerRequest *request);
 
 // Icons

lib/obp60task/OBPSensorTask.cpp

@@ -371,7 +371,7 @@ void sensorTask(void *param){
     GwApi::BoatValue *hdop=new GwApi::BoatValue(GwBoatData::_HDOP);
     GwApi::BoatValue *valueList[]={gpsdays, gpsseconds, hdop};
 
-    // Internal RTC with NTP init
+    // Internal iRTC with NTP init
     ESP32Time rtc(0);
     if (api->getConfig()->getString(api->getConfig()->timeSource) == "iRTC") {
         GwApi::Status status;
@@ -432,17 +432,17 @@ void sensorTask(void *param){
 
         iRTC  RTC  GPS N2K
           0    0    0  (1)
-          0    0   (1) (X)
-          0   (1)   0  (X)
-          0    1 <-(1) (X)
-         (1)   0    0  (X)
-          1    0   (1) (X)
-          1 ->(1)   0  (X)
-          1    1 <-(1) (X)
+          0    0   (1)  X 
+          0   (1)   0   X 
+          0    1 <-(1)  X 
+         (1)   0    0   X 
+          1    0   (1)  X 
+          1 ->(1)   0   X 
+          1    1 <-(1)  X 
 
         */
 
-        // If RTC DS1388 ready, then copy iRTC and GPS data to RTC all 1min
+        // If RTC DS1388 ready, then copy iRTC and GPS data to RTC all 1 min
         if(millis() > starttime11 + 1*60*1000){
             starttime11 = millis();
             // Set RTC chip via iRTC (NTP)
@@ -475,7 +475,7 @@ void sensorTask(void *param){
                     // Adjust RTC time as unix time value
                     ds1388.adjust(adjusttime);
                 }
-            }          
+            }    
         }
 
         // Set RTC chip via N2K or 183 in case the internal GPS is off (only one time)
@@ -524,7 +524,7 @@ void sensorTask(void *param){
                     // N2K sysTime is double in n2klib
                     double sysTime = (dt.hour() * 3600) + (dt.minute() * 60) + dt.second();
                     if(!isnan(daysAt1970) && !isnan(sysTime)){
-                        //api->getLogger()->logDebug(GwLog::LOG,"RTC time: %04d/%02d/%02d %02d:%02d:%02d",sensors.rtcTime.tm_year+1900,sensors.rtcTime.tm_mon, sensors.rtcTime.tm_mday, sensors.rtcTime.tm_hour, sensors.rtcTime.tm_min, sensors.rtcTime.tm_sec);
+                        //api->getLogger()->logDebug(GwLog::LOG,"RTC time: %04d/%02d/%02d %02d:%02d:%02d",sensors.rtcTime.tm_year+1900,sensors.rtcTime.tm_mon+1, sensors.rtcTime.tm_mday, sensors.rtcTime.tm_hour, sensors.rtcTime.tm_min, sensors.rtcTime.tm_sec);
                         //api->getLogger()->logDebug(GwLog::LOG,"Send PGN126992: %10d %10d",daysAt1970, (uint16_t)sysTime);
                         SetN2kPGN126992(N2kMsg,0,daysAt1970,sysTime,N2ktimes_LocalCrystalClock);
                         api->sendN2kMessage(N2kMsg);
@@ -533,25 +533,26 @@ void sensorTask(void *param){
             }
             // Send date and time from software RTC (iRTC)
             if (iRTC_ready == true && RTC_ready == false && GPS_ready == false) {
-                // Use internal RTC feature
-                sensors.rtcTime = rtc.getTimeStruct(); // Save software RTC values in SensorData
-                // TODO implement daysAt1970 and sysTime as methods of DateTime
+                sensors.rtcTime = rtc.getTimeStruct();
+
                 const short daysOfYear[12] = {0,31,59,90,120,151,181,212,243,273,304,334};
-                uint16_t switchYear = ((sensors.rtcTime.tm_year-1)-1968)/4 - ((sensors.rtcTime.tm_year-1)-1900)/100 + ((sensors.rtcTime.tm_year-1)-1600)/400;
-                long daysAt1970 = (sensors.rtcTime.tm_year-1970)*365 + switchYear + daysOfYear[sensors.rtcTime.tm_mon-1] + sensors.rtcTime.tm_mday-1;
-                // If switch year then add one day
-                if ((sensors.rtcTime.tm_mon > 2) && (sensors.rtcTime.tm_year % 4 == 0  && (sensors.rtcTime.tm_year % 100 != 0 || sensors.rtcTime.tm_year % 400 == 0))) {
+                int year  = sensors.rtcTime.tm_year + 1900;
+                int month = sensors.rtcTime.tm_mon;
+                int day   = sensors.rtcTime.tm_mday;
+                uint16_t switchYear = ((year - 1) - 1968) / 4 - ((year - 1) - 1900) / 100 + ((year - 1) - 1600) / 400;
+                long daysAt1970 = (year - 1970) * 365L + switchYear + daysOfYear[month] + day - 1;
+
+                // Leap day add if date is after Feb (i.e. month >= March)
+                if (month >= 2 && (year % 4 == 0 && (year % 100 != 0 || year % 400 == 0))) {
                     daysAt1970 += 1;
                 }
-                // N2K sysTime is double in n2klib
-                double sysTime = (sensors.rtcTime.tm_hour * 3600) + (sensors.rtcTime.tm_min * 60) + sensors.rtcTime.tm_sec;
-                if(!isnan(daysAt1970) && !isnan(sysTime)){
-                    //api->getLogger()->logDebug(GwLog::LOG,"RTC time: %04d/%02d/%02d %02d:%02d:%02d",sensors.rtcTime.tm_year+1900,sensors.rtcTime.tm_mon, sensors.rtcTime.tm_mday, sensors.rtcTime.tm_hour, sensors.rtcTime.tm_min, sensors.rtcTime.tm_sec);
-                    //api->getLogger()->logDebug(GwLog::LOG,"Send PGN126992: %10d %10d",daysAt1970, (uint16_t)sysTime);
-                    SetN2kPGN126992(N2kMsg,0,daysAt1970,sysTime,N2ktimes_LocalCrystalClock);
-                    api->sendN2kMessage(N2kMsg);
-                }
+                double sysTime = sensors.rtcTime.tm_hour * 3600.0 + sensors.rtcTime.tm_min  * 60.0 + sensors.rtcTime.tm_sec;
+                //api->getLogger()->logDebug(GwLog::LOG, "iRTC time: %04d/%02d/%02d %02d:%02d:%02d", year, month + 1, day, sensors.rtcTime.tm_hour, sensors.rtcTime.tm_min, sensors.rtcTime.tm_sec);
+                //api->getLogger()->logDebug(GwLog::LOG,"Send PGN126992: %10d %10d",daysAt1970, (uint16_t)sysTime);
+                SetN2kPGN126992(N2kMsg, 0, daysAt1970, sysTime, N2ktimes_LocalCrystalClock);
+                api->sendN2kMessage(N2kMsg);
             }
+
         }
 
         // Send 1Wire data for all temperature sensors to N2K all 2s

lib/obp60task/PageAutopilot.cpp

@@ -5,8 +5,9 @@
 
 // These constants have to match the declaration below in :
 //  PageDescription registerPageAutopilot(
-//  {"HDM","HDT", "COG", "STW", "SOG", "DBT","XTE", "DTW", "BTW"}, // Bus values we need in the page
-const int HowManyValues = 9;
+//  {"HDM","HDT", "COG", "STW", "SOG", "DBT","XTE", "DTW", "BTW", "RPOS", "ROT"}, // Bus values we need in the page
+
+const int HowManyValues = 11;
 
 const int AverageValues = 4;
 
@@ -19,10 +20,13 @@ const int ShowDBT = 5;
 const int ShowXTE = 6;
 const int ShowDTW = 7;
 const int ShowBTW = 8;
+const int ShowRPOS = 9;
+const int ShowROT = 10;
 
 const int Compass_X0 = 200;         // X center point of compass band
-const int Compass_Y0 = 220;         // Y position of compass lines
-const int Compass_LineLength = 22;  // Length of compass lines
+const int Compass_Y0 = 90;          // Y position of compass lines
+//const int Compass_LineLength = 22;  // Length of compass lines
+const int Compass_LineLength = 15;  // Length of compass lines
 const float Compass_LineDelta = 8.0;// Compass band: 1deg = 5 Pixels, 10deg = 50 Pixels 
 
 class PageAutopilot : public Page
@@ -38,8 +42,11 @@ class PageAutopilot : public Page
 
     virtual void setupKeys(){
         Page::setupKeys();
-        commonData->keydata[0].label = "CMP";
-        commonData->keydata[1].label = "SRC";
+        commonData->keydata[0].label = "-10";
+        commonData->keydata[1].label = "-1";
+        commonData->keydata[2].label = "Auto";
+        commonData->keydata[3].label = "+1";
+        commonData->keydata[4].label = "+10";
    }
     
     virtual int handleKey(int key){
@@ -69,8 +76,8 @@ class PageAutopilot : public Page
         GwLog *logger = commonData->logger;
     
         // Old values for hold function
-        static String OldDataText[HowManyValues] = {"", "", "","", "", "","", "", ""};
-        static String OldDataUnits[HowManyValues] = {"", "", "","", "", "","", "", ""};
+        static String OldDataText[HowManyValues] = {"", "", "", "", "", "","", "", "", "", ""};
+        static String OldDataUnits[HowManyValues] = {"", "", "", "", "", "","", "", "", "", ""};
 
         // Get config data
         String lengthformat = config->getString(config->lengthFormat);
@@ -106,15 +113,13 @@ class PageAutopilot : public Page
             setBlinkingLED(false);
             setFlashLED(false); 
         }
-
-        if (bvalue == NULL) return PAGE_OK; // WTF why this statement?
         
         //***********************************************************
 
         // Set display in partial refresh mode
         getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
         getdisplay().setTextColor(commonData->fgcolor);
-
+/*
         // Horizontal line 2 pix top & bottom
         // Print data on top half
         getdisplay().fillRect(0, 130, 400, 2, commonData->fgcolor); 
@@ -138,7 +143,7 @@ class PageAutopilot : public Page
             OldDataText[WhichDataDisplay] = DataText[WhichDataDisplay];         // Save the old value
             OldDataUnits[WhichDataDisplay] = DataUnits[WhichDataDisplay];       // Save the old unit
         }
-
+*/
         // Now draw compass band                
         // Get the data
         double TheAngle = DataValue[WhichDataCompass];
@@ -152,13 +157,13 @@ class PageAutopilot : public Page
         buffer[0]=0;              
 
         getdisplay().setFont(&Ubuntu_Bold16pt8b);
-        getdisplay().setCursor(10, Compass_Y0-60);
+        getdisplay().setCursor(10, Compass_Y0-40);
         getdisplay().print(DataName[WhichDataCompass]);                         // Page name
- 
      
         // Draw compass base line and pointer
         getdisplay().fillRect(0, Compass_Y0, 400, 3, commonData->fgcolor);            
-        getdisplay().fillTriangle(Compass_X0,Compass_Y0-40,Compass_X0-10,Compass_Y0-80,Compass_X0+10,Compass_Y0-80,commonData->fgcolor);
+        //getdisplay().fillTriangle(Compass_X0,Compass_Y0-40,Compass_X0-10,Compass_Y0-80,Compass_X0+10,Compass_Y0-80,commonData->fgcolor);
+        getdisplay().fillTriangle(Compass_X0,Compass_Y0-30,Compass_X0-10,Compass_Y0-60,Compass_X0+10,Compass_Y0-60,commonData->fgcolor);
         // Draw trendlines
         for ( int i = 1; i < abs(TheTrend) / 2; i++){
             int x1;
@@ -238,6 +243,8 @@ class PageAutopilot : public Page
         // if ( x_test > 390)
         //     x_test = 320;
 
+        displayRudderPosition(DataValue[ShowSOG], 20, 200, 160, commonData->fgcolor, commonData->bgcolor);
+
         return PAGE_UPDATE;
     };
 
@@ -256,7 +263,7 @@ PageDescription registerPageAutopilot(
     "Autopilot",    // Page name
     createPage,     // Action
     0,              // Number of bus values depends on selection in Web configuration
-    {"HDM","HDT", "COG", "STW", "SOG", "DBT","XTE", "DTW", "BTW"}, // Bus values we need in the page
+    {"HDM","HDT", "COG", "STW", "SOG", "DBT","XTE", "DTW", "BTW", "RPOS", "ROT"}, // Bus values we need in the page
    true            // Show display header on/off
 );
 

lib/obp60task/PageSystem.cpp

@@ -15,6 +15,7 @@
 #include "images/logo64.xbm"
 #include <esp32/clk.h>
 #include "qrcode.h"
+#include <vector>
 
 #ifdef BOARD_OBP40S3
 #include "dirent.h"
@@ -40,6 +41,7 @@ private:
     String rtc_module;
     String gps_module;
     String env_module;
+    String flashLED;
 
     String batt_sensor;
     String solar_sensor;
@@ -50,6 +52,17 @@ private:
 
     char mode = 'N'; // (N)ormal, (S)ettings, (D)evice list, (C)ard
 
+#ifdef PATCH_N2K
+    struct device {
+        uint64_t NAME;
+        uint8_t id;
+        char hex_name[17];
+        uint16_t manuf_code;
+        const char *model;
+    };
+    std::vector<device> devicelist;
+#endif
+
 public:
     PageSystem(CommonData &common){
         commonData = &common;
@@ -76,6 +89,7 @@ public:
         rot_sensor = common.config->getString(common.config->useRotSensor);
         homelat = common.config->getString(common.config->homeLAT).toDouble();
         homelon = common.config->getString(common.config->homeLON).toDouble();
+        flashLED = common.config->getString(common.config->flashLED);
     }
 
     void setupKeys() {
@@ -168,19 +182,43 @@ public:
         }
     }
 
+    void displayNew(PageData &pageData) {
+#ifdef BOARD_OBP60S3
+        // Clear optical warning
+        if (flashLED == "Limit Violation") {
+            setBlinkingLED(false);
+            setFlashLED(false);
+        }
+#endif
+
+#ifdef PATCH_N2K
+        // load current device list
+        tN2kDeviceList *pDevList = pageData.api->getN2kDeviceList();
+        // TODO check if changed
+        if (pDevList->ReadResetIsListUpdated()) {
+            // only reload if changed
+            devicelist.clear();
+            for (uint8_t i = 0; i <= 252; i++) {
+                const tNMEA2000::tDevice *d = pDevList->FindDeviceBySource(i);
+                if (d == nullptr) {
+                    continue;
+                }
+                device dev;
+                dev.id = i;
+                dev.NAME = d->GetName();
+                snprintf(dev.hex_name, sizeof(dev.hex_name), "%08X%08X", (uint32_t)(dev.NAME >> 32), (uint32_t)(dev.NAME & 0xFFFFFFFF));
+                dev.manuf_code = d->GetManufacturerCode();
+                dev.model = d->GetModelID();
+                devicelist.push_back(dev);
+            }
+        }
+#endif
+    };
+
     int displayPage(PageData &pageData){
         GwConfigHandler *config = commonData->config;
         GwLog *logger = commonData->logger;
 
-        // Get config data
-        String flashLED = config->getString(config->flashLED);
-
-        // Optical warning by limit violation (unused)
-        if(String(flashLED) == "Limit Violation"){
-            setBlinkingLED(false);
-            setFlashLED(false); 
-        }
-
         // Logging boat values
         logger->logDebug(GwLog::LOG, "Drawing at PageSystem, Mode=%c", mode);
 
@@ -461,12 +499,54 @@ public:
             getdisplay().print("NMEA2000 device list");
 
             getdisplay().setFont(&Ubuntu_Bold8pt8b);
-            getdisplay().setCursor(20, 80);
+            getdisplay().setCursor(20, 70);
             getdisplay().print("RxD: ");
             getdisplay().print(String(commonData->status.n2kRx));
-            getdisplay().setCursor(20, 100);
+            getdisplay().setCursor(120, 70);
             getdisplay().print("TxD: ");
             getdisplay().print(String(commonData->status.n2kTx));
+
+#ifdef PATCH_N2K
+            x0 = 20;
+            y0 = 100;
+
+            getdisplay().setFont(&Ubuntu_Bold10pt8b);
+            getdisplay().setCursor(x0, y0);
+            getdisplay().print("ID");
+            getdisplay().setCursor(x0 + 50, y0);
+            getdisplay().print("Model");
+            getdisplay().setCursor(x0 + 250, y0);
+            getdisplay().print("Manuf.");
+            getdisplay().drawLine(18, y0 + 4, 360 , y0 + 4 , commonData->fgcolor);
+
+            getdisplay().setFont(&Ubuntu_Bold8pt8b);
+            y0 = 120;
+            uint8_t n_dev = 0;
+            for (const device& item : devicelist) {
+                if (n_dev > 8) {
+                    break;
+                }
+                getdisplay().setCursor(x0, y0 + n_dev * 20);
+                getdisplay().print(item.id);
+                getdisplay().setCursor(x0 + 50, y0 + n_dev * 20);
+                getdisplay().print(item.model);
+                getdisplay().setCursor(x0 + 250, y0 + n_dev * 20);
+                getdisplay().print(item.manuf_code);
+                n_dev++;
+            }
+            getdisplay().setCursor(x0, y0 + (n_dev + 1) * 20);
+            if (n_dev == 0) {
+                getdisplay().printf("no devices found on bus");
+
+            } else {
+                getdisplay().drawLine(18, y0 + n_dev * 20, 360 , y0 + n_dev * 20, commonData->fgcolor);
+                getdisplay().printf("%d devices of %d in total", n_dev, devicelist.size());
+            }
+#else
+            getdisplay().setCursor(20, 100);
+            getdisplay().print("NMEA2000 not exposed to obp60 task");
+#endif
+
         }
 
         // Update display

lib/obp60task/config_obp40.json

@@ -1245,8 +1245,8 @@
         "name": "timeSource",
         "label": "Status Time Source",
         "type": "list",
-        "default": "GPS",
-        "description": "Data source for date and time display in status line [RTC|iRTC|GPS]",
+        "default": "iRTC",
+        "description": "Data source for date and time display in status line [iRTC|RTC|GPS]",
         "list": [
             {"l":"Internal real time clock (iRTC)","v":"iRTC"},
             {"l":"External real time clock (RTC)","v":"RTC"},
@@ -1517,6 +1517,7 @@
         "default": "Voltage",
         "description": "Type of page for page 1",
         "list": [
+            "Autopilot",
             "BME280",
             "Battery",
             "Battery2",
@@ -1847,6 +1848,7 @@
         "default": "WindRose",
         "description": "Type of page for page 2",
         "list": [
+            "Autopilot",
             "BME280",
             "Battery",
             "Battery2",
@@ -2168,6 +2170,7 @@
         "default": "OneValue",
         "description": "Type of page for page 3",
         "list": [
+            "Autopilot",
             "BME280",
             "Battery",
             "Battery2",
@@ -2480,6 +2483,7 @@
         "default": "TwoValues",
         "description": "Type of page for page 4",
         "list": [
+            "Autopilot",
             "BME280",
             "Battery",
             "Battery2",
@@ -2783,6 +2787,7 @@
         "default": "ThreeValues",
         "description": "Type of page for page 5",
         "list": [
+            "Autopilot",
             "BME280",
             "Battery",
             "Battery2",
@@ -3077,6 +3082,7 @@
         "default": "FourValues",
         "description": "Type of page for page 6",
         "list": [
+            "Autopilot",
             "BME280",
             "Battery",
             "Battery2",
@@ -3362,6 +3368,7 @@
         "default": "FourValues2",
         "description": "Type of page for page 7",
         "list": [
+            "Autopilot",
             "BME280",
             "Battery",
             "Battery2",
@@ -3638,6 +3645,7 @@
         "default": "Clock",
         "description": "Type of page for page 8",
         "list": [
+            "Autopilot",
             "BME280",
             "Battery",
             "Battery2",
@@ -3905,6 +3913,7 @@
         "default": "RollPitch",
         "description": "Type of page for page 9",
         "list": [
+            "Autopilot",
             "BME280",
             "Battery",
             "Battery2",
@@ -4163,6 +4172,7 @@
         "default": "Battery2",
         "description": "Type of page for page 10",
         "list": [
+            "Autopilot",
             "BME280",
             "Battery",
             "Battery2",

lib/obp60task/config_obp60.json

@@ -1235,8 +1235,9 @@
         "label": "Status Time Source",
         "type": "list",
         "default": "GPS",
-        "description": "Data source for date and time display in status line [RTC|GPS]",
+        "description": "Data source for date and time display in status line [iRTC|RTC|GPS]",
         "list": [
+            {"l":"Internal real time clock (iRTC)","v":"iRTC"},
             {"l":"Real time clock (RTC)","v":"RTC"},
             {"l":"Time via bus (GPS)","v":"GPS"}
         ],
@@ -1494,6 +1495,7 @@
         "default": "Voltage",
         "description": "Type of page for page 1",
         "list": [
+            "Autopilot",
             "BME280",
             "Battery",
             "Battery2",
@@ -1794,6 +1796,7 @@
         "default": "WindRose",
         "description": "Type of page for page 2",
         "list": [
+            "Autopilot",
             "BME280",
             "Battery",
             "Battery2",
@@ -2086,6 +2089,7 @@
         "default": "OneValue",
         "description": "Type of page for page 3",
         "list": [
+            "Autopilot",
             "BME280",
             "Battery",
             "Battery2",
@@ -2370,6 +2374,7 @@
         "default": "TwoValues",
         "description": "Type of page for page 4",
         "list": [
+            "Autopilot",
             "BME280",
             "Battery",
             "Battery2",
@@ -2646,6 +2651,7 @@
         "default": "ThreeValues",
         "description": "Type of page for page 5",
         "list": [
+            "Autopilot",
             "BME280",
             "Battery",
             "Battery2",
@@ -2914,6 +2920,7 @@
         "default": "FourValues",
         "description": "Type of page for page 6",
         "list": [
+            "Autopilot",
             "BME280",
             "Battery",
             "Battery2",
@@ -3174,6 +3181,7 @@
         "default": "FourValues2",
         "description": "Type of page for page 7",
         "list": [
+            "Autopilot",
             "BME280",
             "Battery",
             "Battery2",
@@ -3426,6 +3434,7 @@
         "default": "Clock",
         "description": "Type of page for page 8",
         "list": [
+            "Autopilot",
             "BME280",
             "Battery",
             "Battery2",
@@ -3670,6 +3679,7 @@
         "default": "RollPitch",
         "description": "Type of page for page 9",
         "list": [
+            "Autopilot",
             "BME280",
             "Battery",
             "Battery2",
@@ -3906,6 +3916,7 @@
         "default": "Battery2",
         "description": "Type of page for page 10",
         "list": [
+            "Autopilot",
             "BME280",
             "Battery",
             "Battery2",

lib/obp60task/extra_task.py

@@ -2,6 +2,14 @@
 
 import subprocess
 
+def cleanup_patches(source, target, env):
+    for p in patchfiles:
+        patch = os.path.join(patchdir, p)
+        print(f"removing {patch}")
+        res = subprocess.run(["git", "apply", "-R", patch], capture_output=True, text=True)
+        if res.returncode != 0:
+            print(res.stderr)
+
 patching = False
 
 epdtype = "unknown"
@@ -46,11 +54,13 @@ if patching:
         print("patchdir not found, no patches applied")
     else:
         patchfiles = [f for f in os.listdir(patchdir)]
-        for p in patchfiles:
-            patch = os.path.join(patchdir, p)
-            print(f"applying {patch}")
-            res = subprocess.run(["git", "apply", patch], capture_output=True, text=True)
-            if res.returncode != 0:
-                print(res.stderr)
+        if len(patchfiles) > 0:
+            for p in patchfiles:
+                patch = os.path.join(patchdir, p)
+                print(f"applying {patch}")
+                res = subprocess.run(["git", "apply", patch], capture_output=True, text=True)
+                if res.returncode != 0:
+                    print(res.stderr)
+            env.AddPostAction("$PROGPATH", cleanup_patches)
         else:
             print("no patches found")

lib/obp60task/patches/01-nmea2000.patch

@@ -0,0 +1,103 @@
+diff --git a/lib/api/GwApi.h b/lib/api/GwApi.h
+index 88f9690..9663a65 100644
+--- a/lib/api/GwApi.h
++++ b/lib/api/GwApi.h
+@@ -2,6 +2,8 @@
+ #define _GWAPI_H
+ #include "GwMessage.h"
+ #include "N2kMsg.h"
++#include "Nmea2kTwai.h"
++#include "N2kDeviceList.h"
+ #include "NMEA0183Msg.h"
+ #include "GWConfig.h"
+ #include "GwBoatData.h"
+@@ -222,6 +224,8 @@ class GwApi{
+          * accessing boat data must only be executed from within the main thread
+          * you need to use the request pattern as shown in GwExampleTask.cpp
+          */
++        virtual Nmea2kTwai *getNMEA2000()=0;
++        virtual tN2kDeviceList *getN2kDeviceList()=0;
+         virtual GwBoatData *getBoatData()=0;
+         virtual ~GwApi(){}
+ };
+diff --git a/lib/obp60task/OBP60Extensions.h b/lib/obp60task/OBP60Extensions.h
+index 604c356..2fe4496 100644
+--- a/lib/obp60task/OBP60Extensions.h
++++ b/lib/obp60task/OBP60Extensions.h
+@@ -15,6 +15,9 @@
+ #define MOUNT_POINT "/sdcard"
+ #endif
+ 
++// Patches to apply to gateway code
++#define PATCH_N2K
++
+ // FRAM address reservations 32kB: 0x0000 - 0x7FFF
+ // 0x0000 - 0x03ff: single variables
+ #define FRAM_PAGE_NO 0x0002
+diff --git a/lib/usercode/GwUserCode.cpp b/lib/usercode/GwUserCode.cpp
+index 1b007f8..90087d4 100644
+--- a/lib/usercode/GwUserCode.cpp
++++ b/lib/usercode/GwUserCode.cpp
+@@ -216,6 +216,14 @@ public:
+     {
+         return api->getLogger();
+     }
++    virtual Nmea2kTwai *getNMEA2000()
++    {
++        return api->getNMEA2000();
++    }
++    virtual tN2kDeviceList *getN2kDeviceList()
++    {
++        return api->getN2kDeviceList();
++    }
+     virtual GwBoatData *getBoatData()
+     {
+         return api->getBoatData();
+@@ -428,4 +436,4 @@ void GwUserCode::handleWebRequest(const String &url,AsyncWebServerRequest *req){
+     }
+     LOG_DEBUG(GwLog::DEBUG,"no task found for web request %s[%s]",url.c_str(),tname.c_str());
+     req->send(404, "text/plain", "not found");
+-}
+\ No newline at end of file
++}
+diff --git a/src/main.cpp b/src/main.cpp
+index 44c715f..fdb0366 100644
+--- a/src/main.cpp
++++ b/src/main.cpp
+@@ -100,6 +100,7 @@ GwLog logger(LOGLEVEL,NULL);
+ GwConfigHandler config(&logger);
+ 
+ #include "Nmea2kTwai.h"
++#include <N2kDeviceList.h>
+ static const unsigned long CAN_RECOVERY_PERIOD=3000; //ms
+ static const unsigned long NMEA2000_HEARTBEAT_INTERVAL=5000;
+ class Nmea2kTwaiLog : public Nmea2kTwai{
+@@ -126,6 +127,7 @@ class Nmea2kTwaiLog : public Nmea2kTwai{
+ #endif
+ 
+ Nmea2kTwai &NMEA2000=*(new Nmea2kTwaiLog((gpio_num_t)ESP32_CAN_TX_PIN,(gpio_num_t)ESP32_CAN_RX_PIN,CAN_RECOVERY_PERIOD,&logger));
++tN2kDeviceList *pN2kDeviceList;
+ 
+ #ifdef GWBUTTON_PIN
+ bool fixedApPass=false;
+@@ -333,6 +335,12 @@ public:
+     status.n2kTx=countNMEA2KOut.getGlobal();
+     channels.fillStatus(status);
+   }
++  virtual Nmea2kTwai *getNMEA2000(){
++    return &NMEA2000;
++  }
++  virtual tN2kDeviceList *getN2kDeviceList(){
++    return pN2kDeviceList;
++  }
+   virtual GwBoatData *getBoatData(){
+     return &boatData;
+   }
+@@ -935,6 +943,7 @@ void setup() {
+   NMEA2000.SetMsgHandler([](const tN2kMsg &n2kMsg){
+     handleN2kMessage(n2kMsg,N2K_CHANNEL_ID);
+   });
++  pN2kDeviceList = new tN2kDeviceList(&NMEA2000);
+   NMEA2000.Open();
+   logger.logDebug(GwLog::LOG,"starting addon tasks");
+   logger.flush();