First design experiments for barograph

lib/obp60task/OBP60Extensions.cpp

@@ -179,6 +179,24 @@ String xdrDelete(String input){
     return input;
 }
 
+// Draw centered text
+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);
+    getdisplay().setCursor(cx - w / 2, cy + h / 2);
+    getdisplay().print(text);
+}
+
+// Draw right aligned text
+void drawTextRalign(int16_t x, int16_t y, String text) {
+    int16_t x1, y1;
+    uint16_t w, h;
+    getdisplay().getTextBounds(text, 0, 150, &x1, &y1, &w, &h);
+    getdisplay().setCursor(x - w, y);
+    getdisplay().print(text);
+}
+
 // Show a triangle for trend direction high (x, y is the left edge)
 void displayTrendHigh(int16_t x, int16_t y, uint16_t size, uint16_t color){
     getdisplay().fillTriangle(x, y, x+size*2, y, x+size, y-size*2, color);

lib/obp60task/OBP60Extensions.h

@@ -58,6 +58,9 @@ void setBuzzerPower(uint power);                // Set buzzer power
 
 String xdrDelete(String input);                 // Delete xdr prefix from string
 
+void drawTextCenter(int16_t cx, int16_t cy, String text);
+void drawTextRalign(int16_t x, int16_t y, String text);
+
 void displayTrendHigh(int16_t x, int16_t y, uint16_t size, uint16_t color);
 void displayTrendLow(int16_t x, int16_t y, uint16_t size, uint16_t color);
 

lib/obp60task/PageBarograph.cpp

@@ -0,0 +1,228 @@
+#ifdef BOARD_OBP60S3
+
+#include "Pagedata.h"
+#include "OBP60Extensions.h"
+
+class PageBarograph : public Page{
+
+    bool keylock = false;
+    bool has_fram = false;
+    String flashLED;
+    String useenvsensor;
+
+    char source = 'I'; // (I)nternal, e(X)ternal
+    const int series[5] = {75, 150, 300, 600, 900};
+    const int zoom[5] = {1, 2, 3, 6, 12};
+    int zoomindex = 4;
+    uint16_t data[336] = {0}; // current data to display
+
+    // y-axis
+    uint16_t vmin;
+    uint16_t vmax;
+    uint16_t scalemin = 1000;
+    uint16_t scalemax = 1020;
+    uint16_t scalestep = 5;
+    int hist1 = 0;  // one hour trend
+    int hist3 = 0;  // three hours trend
+
+    long refresh = 0; // millis
+
+    void loadData() {
+        // Transfer data from history to page buffer,
+        // set y-axis according to data
+        int i = zoom[zoomindex];
+
+        // get min and max values of measured data
+        vmin = data[0];
+        vmax = data[0];
+        for (int x = 0; x < 336; x++) {
+            if (data[x] != 0) {
+                if (data[x] < vmin) {
+                    vmin = data[x];
+                } else if (data[x] > vmax) {
+                    vmax = data[x];
+                }
+            }
+        }
+
+        // calculate y-axis scale
+        uint16_t diff = vmax - vmin;
+        if (diff < 20) {
+            scalestep = 5;
+        } else if (diff < 40) {
+            scalestep = 10;
+        } else {
+            scalestep = 15;
+        }
+        scalemin = vmin - (vmin % scalestep);
+        scalemax = vmax + scalestep - (vmax % scalestep);
+
+        // TODO implement history buffer
+    };
+
+    public:
+    PageBarograph(CommonData &common){
+        common.logger->logDebug(GwLog::LOG,"Instantiate PageBarograph");
+        // Get config data
+        flashLED = common.config->getString(common.config->flashLED);
+        useenvsensor = common.config->getString(common.config->useEnvSensor);
+        // possible values for internal sensor
+        static std::vector<String> sensorList = {
+            "BME280", "BMP280", "BMP180", "BMP085", "HTU21", "SHT21"
+            };
+        if (std::find(sensorList.begin(), sensorList.end(), useenvsensor) != sensorList.end()) {
+            source = 'I';
+        } else {
+            // "off" means user external data if available
+            source = 'X';
+        }
+        //common.logger->logDebug(GwLog::LOG,"Source=%s (%s)", source, useenvsensor);
+        loadData(); // initial load
+    }
+
+    virtual int handleKey(int key) {
+        if (key == 1) {
+            // zoom in
+            if (zoomindex > 0) {
+                zoomindex -= 1;
+            }
+            return 0;
+        }
+        if (key == 2) {
+            // zoom out
+            if (zoomindex < sizeof(zoom)) {
+                zoomindex += 1;
+            }
+            return 0;
+        }
+        if (key == 11) {
+            keylock = !keylock;
+            return 0;
+        }
+        return key;
+    }
+
+    virtual void displayPage(CommonData &commonData, PageData &pageData){
+        GwLog *logger=commonData.logger;
+
+        // Optical warning by limit violation (unused)
+        if (String(flashLED) == "Limit Violation") {
+            setBlinkingLED(false);
+            setFlashLED(false); 
+        }
+
+        // Logging boat values
+        LOG_DEBUG(GwLog::LOG,"Drawing at PageBarograph");
+
+        // Draw page
+        //***********************************************************
+
+        // Set display in partial refresh mode
+        getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height()); // Set partial update
+
+        // Frames 
+        getdisplay().fillRect(0, 75, 400, 2, commonData.fgcolor);  // fillRect: x, y, w, h
+        getdisplay().fillRect(130, 20, 2, 55, commonData.fgcolor);
+        getdisplay().fillRect(270, 20, 2, 55, commonData.fgcolor);
+        getdisplay().fillRect(325, 20, 2, 55, commonData.fgcolor);
+
+        getdisplay().setTextColor(commonData.fgcolor);
+
+        getdisplay().setFont(&Ubuntu_Bold8pt7b);
+        if (source == 'I') {
+            drawTextCenter(360, 40, useenvsensor);
+        } else {
+            drawTextCenter(360, 40, "ext.");
+        }
+
+        // Trend
+        drawTextCenter(295, 62, "0.0");
+
+        // Alarm placeholder
+         drawTextCenter(70, 62, "Alarm Off");
+
+        // Zoom
+        int datastep = series[zoomindex];
+        String fmt;
+        if (datastep > 120) {
+            if (datastep % 60 == 0) {
+                fmt = String(datastep / 60.0, 0) + " min";
+            } else {
+                fmt = String(datastep / 60.0, 1) + " min";
+            }
+        } else {
+            fmt = String(datastep) + " s";
+        }
+        drawTextCenter(360, 62, fmt);
+
+        // Current measurement
+        getdisplay().setFont(&Ubuntu_Bold16pt7b);
+        drawTextCenter(200, 40, String(commonData.data.airPressure / 100, 1));
+        getdisplay().setFont(&Ubuntu_Bold8pt7b);
+        drawTextCenter(200, 62, "hPa"); // Unit
+
+        // Diagram
+        const int xstep = 48; // x-axis-grid
+        const int x0 = 350;   // origin
+        const int y0 = 270;
+        const int w = 7 * 48;
+        const int h = 180;
+
+        // getdisplay().drawRect(x0 - w, y0 - h, w, h, commonData.fgcolor);
+
+        // x-axis are hours
+        for (int i = 1; i <= 6; i++) {
+            String label = String(-1 * zoom[zoomindex] * i);
+            getdisplay().drawLine(x0 - i * xstep, y0, x0 - i * xstep, y0 - h, commonData.fgcolor);
+            drawTextCenter(x0 - i * xstep, y0 - 10, label);
+        }
+
+        // y-axis
+        getdisplay().drawLine(x0 + 5, y0, x0 + 5, y0 - h, commonData.fgcolor);  // drawLine: x1, y1, x2, y2
+        getdisplay().drawLine(x0 - w, y0, x0 - w, y0 - h, commonData.fgcolor);
+        getdisplay().drawLine(x0 - w - 5, y0, x0 - w - 5, y0 - h, commonData.fgcolor);
+        getdisplay().drawLine(x0, y0, x0, y0 - h, commonData.fgcolor);
+
+        int16_t dy = 9; // px for one hPa
+        int16_t y = y0;
+        int16_t ys = scalemin;
+        while (y >= y0 - h) {
+            if (y % scalestep == 0) {
+                // big step, show label and long line
+                getdisplay().setCursor(x0 + 10, y + 5);
+                getdisplay().print(String(ys));
+                getdisplay().drawLine(x0 + 5, y, x0 - w - 5, y, commonData.fgcolor);
+            } else {
+                // small step, only short lines left and right
+                getdisplay().drawLine(x0 + 5, y, x0, y, commonData.fgcolor);
+                getdisplay().drawLine(x0 - w - 5, y, x0 - w, y, commonData.fgcolor);
+            }
+            y -= dy;
+            ys += 1;
+        }
+
+        // Update display
+        getdisplay().nextPage();    // Partial update (fast)
+
+    };
+};
+
+static Page* createPage(CommonData &common){
+    return new PageBarograph(common);
+}
+
+/**
+ * with the code below we make this page known to the PageTask
+ * we give it a type (name) that can be selected in the config
+ * we define which function is to be called
+ * and we provide the number of user parameters we expect
+ * this will be number of BoatValue pointers in pageData.values
+ */
+PageDescription registerPageBarograph(
+    "Barograph",    // Page name
+    createPage,     // Action
+    0,              // No bus values needed
+    true           // Show display header on/off
+);
+
+#endif

lib/obp60task/config.json

@@ -904,7 +904,7 @@
         "type": "list",
         "default": "Voltage",
         "description": "Type of page for page 1",
-        "list":["OneValue","TwoValues","ThreeValues","FourValues","FourValues2","ApparentWind","WindRose","WindRoseFlex","Voltage","DST810","Clock","WhitePage","BME280","RudderPosition","KeelPosition","Battery","Battery2","RollPitch","Solar","Generator","XTETrack","Fluid"],
+        "list":["OneValue","TwoValues","ThreeValues","FourValues","FourValues2","ApparentWind","WindRose","WindRoseFlex","Voltage","DST810","Clock","WhitePage","BME280","RudderPosition","KeelPosition","Battery","Battery2","RollPitch","Solar","Generator","XTETrack","Fluid","Barograph"],
         "category": "OBP60 Page 1",
         "capabilities": {
             "obp60":"true"
@@ -1009,7 +1009,7 @@
         "type": "list",
         "default": "WindRose",
         "description": "Type of page for page 2",
-        "list":["OneValue","TwoValues","ThreeValues","FourValues","FourValues2","ApparentWind","WindRose","WindRoseFlex","Voltage","DST810","Clock","WhitePage","BME280","RudderPosition","KeelPosition","Battery","Battery2","RollPitch","Solar","Generator","XTETrack","Fluid"],
+        "list":["OneValue","TwoValues","ThreeValues","FourValues","FourValues2","ApparentWind","WindRose","WindRoseFlex","Voltage","DST810","Clock","WhitePage","BME280","RudderPosition","KeelPosition","Battery","Battery2","RollPitch","Solar","Generator","XTETrack","Fluid","Barograph"],
         "category": "OBP60 Page 2",
         "capabilities": {
             "obp60":"true"
@@ -1115,7 +1115,7 @@
         "type": "list",
         "default": "OneValue",
         "description": "Type of page for page 3",
-        "list":["OneValue","TwoValues","ThreeValues","FourValues","FourValues2","ApparentWind","WindRose","WindRoseFlex","Voltage","DST810","Clock","WhitePage","BME280","RudderPosition","KeelPosition","Battery","Battery2","RollPitch","Solar","Generator","XTETrack","Fluid"],
+        "list":["OneValue","TwoValues","ThreeValues","FourValues","FourValues2","ApparentWind","WindRose","WindRoseFlex","Voltage","DST810","Clock","WhitePage","BME280","RudderPosition","KeelPosition","Battery","Battery2","RollPitch","Solar","Generator","XTETrack","Fluid","Barograph"],
         "category": "OBP60 Page 3",
         "capabilities": {
             "obp60":"true"
@@ -1221,7 +1221,7 @@
         "type": "list",
         "default": "TwoValues",
         "description": "Type of page for page 4",
-        "list":["OneValue","TwoValues","ThreeValues","FourValues","FourValues2","ApparentWind","WindRose","WindRoseFlex","Voltage","DST810","Clock","WhitePage","BME280","RudderPosition","KeelPosition","Battery","Battery2","RollPitch","Solar","Generator","XTETrack","Fluid"],
+        "list":["OneValue","TwoValues","ThreeValues","FourValues","FourValues2","ApparentWind","WindRose","WindRoseFlex","Voltage","DST810","Clock","WhitePage","BME280","RudderPosition","KeelPosition","Battery","Battery2","RollPitch","Solar","Generator","XTETrack","Fluid","Barograph"],
         "category": "OBP60 Page 4",
         "capabilities": {
             "obp60":"true"
@@ -1327,7 +1327,7 @@
         "type": "list",
         "default": "ThreeValues",
         "description": "Type of page for page 5",
-        "list":["OneValue","TwoValues","ThreeValues","FourValues","FourValues2","ApparentWind","WindRose","WindRoseFlex","Voltage","DST810","Clock","WhitePage","BME280","RudderPosition","KeelPosition","Battery","Battery2","RollPitch","Solar","Generator","XTETrack","Fluid"],
+        "list":["OneValue","TwoValues","ThreeValues","FourValues","FourValues2","ApparentWind","WindRose","WindRoseFlex","Voltage","DST810","Clock","WhitePage","BME280","RudderPosition","KeelPosition","Battery","Battery2","RollPitch","Solar","Generator","XTETrack","Fluid","Barograph"],
         "category": "OBP60 Page 5",
         "capabilities": {
             "obp60":"true"
@@ -1433,7 +1433,7 @@
         "type": "list",
         "default": "FourValues",
         "description": "Type of page for page 6",
-        "list":["OneValue","TwoValues","ThreeValues","FourValues","FourValues2","ApparentWind","WindRose","WindRoseFlex","Voltage","DST810","Clock","WhitePage","BME280","RudderPosition","KeelPosition","Battery","Battery2","RollPitch","Solar","Generator","XTETrack","Fluid"],
+        "list":["OneValue","TwoValues","ThreeValues","FourValues","FourValues2","ApparentWind","WindRose","WindRoseFlex","Voltage","DST810","Clock","WhitePage","BME280","RudderPosition","KeelPosition","Battery","Battery2","RollPitch","Solar","Generator","XTETrack","Fluid","Barograph"],
         "category": "OBP60 Page 6",
         "capabilities": {
             "obp60":"true"
@@ -1539,7 +1539,7 @@
         "type": "list",
         "default": "FourValues2",
         "description": "Type of page for page 7",
-        "list":["OneValue","TwoValues","ThreeValues","FourValues","FourValues2","ApparentWind","WindRose","WindRoseFlex","Voltage","DST810","Clock","WhitePage","BME280","RudderPosition","KeelPosition","Battery","Battery2","RollPitch","Solar","Generator","XTETrack","Fluid"],
+        "list":["OneValue","TwoValues","ThreeValues","FourValues","FourValues2","ApparentWind","WindRose","WindRoseFlex","Voltage","DST810","Clock","WhitePage","BME280","RudderPosition","KeelPosition","Battery","Battery2","RollPitch","Solar","Generator","XTETrack","Fluid","Barograph"],
         "category": "OBP60 Page 7",
         "capabilities": {
             "obp60":"true"
@@ -1645,7 +1645,7 @@
         "type": "list",
         "default": "Clock",
         "description": "Type of page for page 8",
-        "list":["OneValue","TwoValues","ThreeValues","FourValues","FourValues2","ApparentWind","WindRose","WindRoseFlex","Voltage","DST810","Clock","WhitePage","BME280","RudderPosition","KeelPosition","Battery","Battery2","RollPitch","Solar","Generator","XTETrack","Fluid"],
+        "list":["OneValue","TwoValues","ThreeValues","FourValues","FourValues2","ApparentWind","WindRose","WindRoseFlex","Voltage","DST810","Clock","WhitePage","BME280","RudderPosition","KeelPosition","Battery","Battery2","RollPitch","Solar","Generator","XTETrack","Fluid","Barograph"],
         "category": "OBP60 Page 8",
         "capabilities": {
             "obp60":"true"
@@ -1751,7 +1751,7 @@
         "type": "list",
         "default": "RollPitch",
         "description": "Type of page for page 9",
-        "list":["OneValue","TwoValues","ThreeValues","FourValues","FourValues2","ApparentWind","WindRose","WindRoseFlex","Voltage","DST810","Clock","WhitePage","BME280","RudderPosition","KeelPosition","Battery","Battery2","RollPitch","Solar","Generator","XTETrack","Fluid"],
+        "list":["OneValue","TwoValues","ThreeValues","FourValues","FourValues2","ApparentWind","WindRose","WindRoseFlex","Voltage","DST810","Clock","WhitePage","BME280","RudderPosition","KeelPosition","Battery","Battery2","RollPitch","Solar","Generator","XTETrack","Fluid","Barograph"],
         "category": "OBP60 Page 9",
         "capabilities": {
             "obp60":"true"
@@ -1857,7 +1857,7 @@
         "type": "list",
         "default": "Battery2",
         "description": "Type of page for page 10",
-        "list":["OneValue","TwoValues","ThreeValues","FourValues","FourValues2","ApparentWind","WindRose","WindRoseFlex","Voltage","DST810","Clock","WhitePage","BME280","RudderPosition","KeelPosition","Battery","Battery2","RollPitch","Solar","Generator","XTETrack","Fluid"],
+        "list":["OneValue","TwoValues","ThreeValues","FourValues","FourValues2","ApparentWind","WindRose","WindRoseFlex","Voltage","DST810","Clock","WhitePage","BME280","RudderPosition","KeelPosition","Battery","Battery2","RollPitch","Solar","Generator","XTETrack","Fluid","Barograph"],
         "category": "OBP60 Page 10",
         "capabilities": {
             "obp60":"true"

lib/obp60task/hbuffer.cpp

@@ -0,0 +1,84 @@
+/* History Buffer
+ *
+ * Storage backed buffer for sensordata
+ * Permanent storage only supported type: FRAM on I2C-Bus
+ *  
+ * Values can be 1 to 4 bytes in length
+ * 
+ * Header: 32 bytes of size
+ *    0 0x00 HB00              4 magic number
+ *    4 0x04 xxxxxxxxxxxxxxxx 16 name, space padded
+ *   20 0x14 n                 1 byte size of values in buffer
+ *   21 0x15 mm                2 buffer size in count of values
+ *   23 0x17 dd                2 time step in seconds between values
+ *   25 0x19 tttt              4 unix timestamp of head
+ *   29 0x1d hh                2 head pointer
+ *   31 0x1f 0xff              1 header end sign
+ *
+ *   32 0x20 ...                 start of buffer data
+ * 
+ * Usage example: 7 hours of data collected every 75 seconds
+ * TODO
+ * 
+ */
+ #include <stdint.h>
+ #include <time.h>
+ 
+ class HistoryBuffer {
+
+private:
+     // Header prototype for permanent storage
+     uint8_t header[32] = {
+         0x41, 0x48, 0x30, 0x30, // magic: HB00
+         0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20,
+         0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, 0x20, // empty name
+         0x01, // byte size
+         0x50, 0x01, // value count
+         0x4b, 0x00, // time step
+         0x00, 0x00, 0x00, 0x00, // unix time stamp
+         0x00, 0x00, // head pointer
+         0xff // end sign
+     };
+     uint16_t head = 0; // head pointer to next new value position
+     time_t timestamp; // last modification time of head
+     uint16_t delta_t; // time step in seconds
+
+public:
+     HistoryBuffer(uint16_t size) {
+     }
+     ~HistoryBuffer() {
+         // free memory
+     }
+     void begin() {
+         // 
+     }
+     void finish() {
+     }
+     uint16_t add() {
+         // returns new head value pointer
+     }
+     uint8_t* get() {
+         // returns complete buffer in order new to old
+     }
+     uint8_t getvalue(uint16_t dt) {
+         // Return a single value delta seconds ago
+         uint16_t index = head - abs(dt) / delta_t;
+         return 0;
+     }
+     uint8_t getvalue3() {
+     }
+     bool clear() {
+         // clears buffer and permanent storage
+         return true;
+     }
+ };
+
+class History {
+public:
+    History() {
+    }
+    ~History() {
+    }
+    void *addSeries() {
+    }
+};

lib/obp60task/hbuffer.h

@@ -0,0 +1,21 @@
+#ifndef __HBUFFER_H__
+#define __HBUFFER_H__
+
+class HistoryBuffer {
+public:
+    HistoryBuffer(uint16_t size);
+    void begin();
+    void finish();
+    uint16_t add();
+    uint8_t* get() ;
+    uint8_t getvalue(uint16_t dt);
+    uint8_t getvalue3();
+    void clear();
+};
+class History {
+public:
+    History();
+    void *addSeries();
+};
+
+#endif

lib/obp60task/obp60task.cpp

@@ -246,6 +246,8 @@ void registerAllPages(PageList &list){
     list.add(&registerPageXTETrack);
     extern PageDescription registerPageFluid;
     list.add(&registerPageFluid);
+    extern PageDescription registerPageBarograph;
+    list.add(&registerPageBarograph);
 }
 
 // Undervoltage detection for shutdown display