Integrated config menu into system page

Fix typo: Formated -> Formatted

lib/obp60task/ConfigMenu.cpp

@@ -0,0 +1,204 @@
+/*
+  Menu system for online configuration
+*/
+#include "ConfigMenu.h"
+
+ConfigMenuItem::ConfigMenuItem(String itemtype, String itemlabel, uint16_t itemval, String itemunit) {
+    if (! (itemtype == "int" or itemtype == "bool")) {
+        valtype = "int";
+    } else {
+        valtype = itemtype;
+    }
+    label = itemlabel;
+    min = 0;
+    max = std::numeric_limits<uint16_t>::max();
+    value = itemval;
+    unit = itemunit;
+}
+
+void ConfigMenuItem::setRange(uint16_t valmin, uint16_t valmax, std::vector<uint16_t> valsteps) {
+    min = valmin;
+    max = valmax;
+    steps = valsteps;
+};
+
+bool ConfigMenuItem::checkRange(uint16_t checkval) {
+    return (checkval >= min) and (checkval <= max);
+}
+
+String ConfigMenuItem::getLabel() {
+    return label;
+};
+
+uint16_t ConfigMenuItem::getValue() {
+    return value;
+}
+
+bool ConfigMenuItem::setValue(uint16_t newval) {
+    if (valtype == "int") {
+        if (newval >= min and newval <= max) {
+            value = newval;
+            return true;
+        }
+        return false; // out of range
+    } else if (valtype == "bool") {
+        value = (newval != 0) ? 1 : 0;
+        return true;
+    }
+    return false; // invalid type
+};
+
+void ConfigMenuItem::incValue() {
+    // increase value by step
+    if (valtype == "int") {
+        if (value + step < max) {
+            value += step;
+        } else {
+            value = max;
+        }
+    } else if (valtype == "bool") {
+        value = !value;
+    }
+};
+
+void ConfigMenuItem::decValue() {
+    // decrease value by step
+    if (valtype == "int") {
+        if (value - step > min) {
+            value -= step;
+        } else {
+            value = min;
+        }
+    } else if (valtype == "bool") {
+        value = !value;
+    }
+};
+
+String ConfigMenuItem::getUnit() {
+    return unit;
+}
+
+uint16_t ConfigMenuItem::getStep() {
+    return step;
+}
+
+void ConfigMenuItem::setStep(uint16_t newstep) {
+    if (std::find(steps.begin(), steps.end(), newstep) == steps.end()) {
+        return; // invalid step: not in list of possible steps
+    }
+    step = newstep;
+}
+
+int8_t ConfigMenuItem::getPos() {
+    return position;
+};
+
+void ConfigMenuItem::setPos(int8_t newpos) {
+    position = newpos;
+};
+
+String ConfigMenuItem::getType() {
+    return valtype;
+}
+
+ConfigMenu::ConfigMenu(String menutitle, uint16_t menu_x, uint16_t menu_y) {
+    title = menutitle;
+    x = menu_x;
+    y = menu_y;
+};
+
+ConfigMenuItem* ConfigMenu::addItem(String key, String label, String valtype, uint16_t val, String valunit) {
+    if (items.find(key) != items.end()) {
+        // duplicate keys not allowed
+        return nullptr;
+    }
+    ConfigMenuItem *itm = new ConfigMenuItem(valtype, label, val, valunit);
+    items.insert(std::pair<String, ConfigMenuItem*>(key, itm));
+    // Append key to index, index starting with 0
+    int8_t ix = items.size() - 1;
+    index[ix] = key;
+    itm->setPos(ix);
+    return itm;
+};
+
+void ConfigMenu::setItemDimension(uint16_t itemwidth, uint16_t itemheight) {
+    w = itemwidth;
+    h = itemheight;
+};
+
+void ConfigMenu::setItemActive(String key) {
+    if (items.find(key) != items.end()) {
+        activeitem = items[key]->getPos();
+    } else {
+        activeitem = -1;
+    }
+};
+
+int8_t ConfigMenu::getActiveIndex() {
+    return activeitem;
+}
+
+ConfigMenuItem* ConfigMenu::getActiveItem() {
+    if (activeitem < 0) {
+        return nullptr;
+    }
+    return items[index[activeitem]];
+};
+
+ConfigMenuItem* ConfigMenu::getItemByIndex(uint8_t ix) {
+    if (ix > index.size() - 1) {
+        return nullptr;
+    }
+    return items[index[ix]];
+};
+
+ConfigMenuItem* ConfigMenu::getItemByKey(String key) {
+    if (items.find(key) == items.end()) {
+        return nullptr;
+    }
+    return items[key];
+};
+
+uint8_t ConfigMenu::getItemCount() {
+    return items.size();
+};
+
+void ConfigMenu::goPrev() {
+    if (activeitem == 0) {
+        activeitem = items.size() - 1;
+    } else {
+        activeitem--;
+    }
+}
+
+void ConfigMenu::goNext() {
+    if (activeitem == items.size() - 1) {
+        activeitem = 0;
+    } else {
+        activeitem++;
+    }
+}
+
+Point ConfigMenu::getXY() {
+    return {static_cast<double>(x), static_cast<double>(y)};
+}
+
+Rect ConfigMenu::getRect() {
+    return {static_cast<double>(x), static_cast<double>(y),
+            static_cast<double>(w), static_cast<double>(h)};
+}
+
+Rect ConfigMenu::getItemRect(int8_t index) {
+    return {static_cast<double>(x), static_cast<double>(y + index * h),
+            static_cast<double>(w), static_cast<double>(h)};
+}
+
+void ConfigMenu::setCallback(void (*callback)()) {
+    fptrCallback = callback;
+}
+
+void ConfigMenu::storeValues() {
+    if (fptrCallback) {
+        fptrCallback();
+    }
+}

lib/obp60task/ConfigMenu.h

@@ -0,0 +1,66 @@
+#pragma once
+
+#include <Arduino.h>
+#include <vector>
+#include <map>
+#include "Graphics.h"  // for Point and Rect
+
+class ConfigMenuItem {
+private:
+    String label;
+    uint16_t value;
+    String unit;
+    String valtype; // "int" | "bool"
+    uint16_t min;
+    uint16_t max;
+    std::vector<uint16_t> steps;
+    uint16_t step;
+    int8_t position; // counted fom 0
+
+public:
+    ConfigMenuItem(String itemtype, String itemlabel, uint16_t itemval, String itemunit);
+    void setRange(uint16_t valmin, uint16_t valmax, std::vector<uint16_t> steps);
+    bool checkRange(uint16_t checkval);
+    String getLabel();
+    uint16_t getValue();
+    bool setValue(uint16_t newval);
+    void incValue();
+    void decValue();
+    String getUnit();
+    uint16_t getStep();
+    void setStep(uint16_t newstep);
+    int8_t getPos();
+    void setPos(int8_t newpos);
+    String getType();
+};
+
+class ConfigMenu {
+private:
+    String title;
+    std::map <String,ConfigMenuItem*> items;
+    std::map <uint8_t,String> index;
+    int8_t activeitem = -1; // refers to position of item
+    uint16_t x;
+    uint16_t y;
+    uint16_t w;
+    uint16_t h;
+    void (*fptrCallback)();
+
+public:
+    ConfigMenu(String title, uint16_t menu_x, uint16_t menu_y);
+    ConfigMenuItem* addItem(String key, String label, String valtype, uint16_t val, String valunit);
+    void setItemDimension(uint16_t itemwidth, uint16_t itemheight);
+    int8_t getActiveIndex();
+    void setItemActive(String key);
+    ConfigMenuItem* getActiveItem();
+    ConfigMenuItem* getItemByIndex(uint8_t index);
+    ConfigMenuItem* getItemByKey(String key);
+    uint8_t getItemCount();
+    void goPrev();
+    void goNext();
+    Point getXY();
+    Rect getRect();
+    Rect getItemRect(int8_t index);
+    void setCallback(void (*callback)());
+    void storeValues();
+};

lib/obp60task/Graphics.cpp

@@ -0,0 +1,25 @@
+/*
+Generic graphics functions
+
+*/
+#include <math.h>
+#include "Graphics.h"
+
+Point rotatePoint(const Point& origin, const Point& p, double angle) {
+    // rotate poind around origin by degrees
+    Point rotated;
+    double phi = angle * M_PI / 180.0;
+    double dx = p.x - origin.x;
+    double dy = p.y - origin.y;
+    rotated.x = origin.x + cos(phi) * dx - sin(phi) * dy;
+    rotated.y = origin.y + sin(phi) * dx + cos(phi) * dy;
+    return rotated;
+}
+
+std::vector<Point> rotatePoints(const Point& origin, const std::vector<Point>& pts, double angle) {
+    std::vector<Point> rotatedPoints;
+    for (const auto& p : pts) {
+         rotatedPoints.push_back(rotatePoint(origin, p, angle));
+    }
+     return rotatedPoints;
+}

lib/obp60task/Graphics.h

@@ -0,0 +1,17 @@
+#pragma once
+#include <vector>
+
+struct Point {
+    double x;
+    double y;
+};
+
+struct Rect {
+    double x;
+    double y;
+    double w;
+    double h;
+};
+
+Point rotatePoint(const Point& origin, const Point& p, double angle);
+std::vector<Point> rotatePoints(const Point& origin, const std::vector<Point>& pts, double angle);

lib/obp60task/LedSpiTask.cpp

@@ -14,6 +14,30 @@ https://controllerstech.com/ws2812-leds-using-spi/
 
 */
 
+String Color::toHex() {
+    char hexColor[8];
+    sprintf(hexColor, "#%02X%02X%02X", r, g, b);
+    return String(hexColor);
+}
+
+String Color::toName() {
+    static std::map<int, String> const names = {
+        {0xff0000, "Red"},
+        {0x00ff00, "Green"},
+        {0x0000ff, "Blue",},
+        {0xff9900, "Orange"},
+        {0xffff00, "Yellow"},
+        {0x3366ff, "Aqua"},
+        {0xff0066, "Violet"},
+        {0xffffff, "White"}
+    };
+    int color = (r << 16) + (g << 8) + b;
+    auto it = names.find(color);
+    if (it == names.end()) {
+        return toHex();
+    }
+    return it->second;
+}
 
 static uint8_t mulcolor(uint8_t f1, uint8_t f2){
     uint16_t rt=f1;

lib/obp60task/LedSpiTask.h

@@ -10,7 +10,7 @@ class Color{
     uint8_t g;
     uint8_t b;
     Color():r(0),g(0),b(0){}
-    Color(uint8_t cr, uint8_t cg,uint8_t cb):
+    Color(uint8_t cr, uint8_t cg, uint8_t cb):
         b(cb),g(cg),r(cr){}
     Color(const Color &o):b(o.b),g(o.g),r(o.r){}
     bool equal(const Color &o) const{
@@ -22,6 +22,8 @@ class Color{
     bool operator != (const Color &other) const{
         return ! equal(other);
     }
+    String toHex();
+    String toName();
 };
 
 static Color COLOR_GREEN=Color(0,255,0);

lib/obp60task/OBP60Extensions.cpp

@@ -107,6 +107,27 @@ 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
+        setPortPin(OBP_POWER_50, true); // Power on 5.0V rail
+#endif
+#ifdef BOARD_OBP40S3
+        setPortPin(OBP_POWER_EPD, true);// Power on ePaper display
+        setPortPin(OBP_POWER_SD, true); // Power on SD card
+#endif
+    } else { // Min Power
+#ifdef HARDWARE_V21
+        setPortPin(OBP_POWER_50, false); // Power off 5.0V rail
+#endif
+#ifdef BOARD_OBP40S3
+        setPortPin(OBP_POWER_EPD, false);// Power off ePaper display
+        setPortPin(OBP_POWER_SD, false); // Power off SD card
+#endif
+    }
+}
+
 void setPortPin(uint pin, bool value){
     pinMode(pin, OUTPUT);
     digitalWrite(pin, value);
@@ -276,30 +297,20 @@ String xdrDelete(String input){
     return input;
 }
 
-Point rotatePoint(const Point& origin, const Point& p, double angle) {
-    // rotate poind around origin by degrees
-    Point rotated;
-    double phi = angle * M_PI / 180.0;
-    double dx = p.x - origin.x;
-    double dy = p.y - origin.y;
-    rotated.x = origin.x + cos(phi) * dx - sin(phi) * dy;
-    rotated.y = origin.y + sin(phi) * dx + cos(phi) * dy;
-    return rotated;
-}
-
-std::vector<Point> rotatePoints(const Point& origin, const std::vector<Point>& pts, double angle) {
-    std::vector<Point> rotatedPoints;
-    for (const auto& p : pts) {
-         rotatedPoints.push_back(rotatePoint(origin, p, angle));
-    }
-     return rotatedPoints;
-}
-
 void fillPoly4(const std::vector<Point>& p4, uint16_t color) {
     getdisplay().fillTriangle(p4[0].x, p4[0].y, p4[1].x, p4[1].y, p4[2].x, p4[2].y, color);
     getdisplay().fillTriangle(p4[0].x, p4[0].y, p4[2].x, p4[2].y, p4[3].x, p4[3].y, color);
 }
 
+void drawPoly(const std::vector<Point>& points, uint16_t color) {
+    size_t polysize = points.size();
+    for (size_t i = 0; i < polysize - 1; i++) {
+        getdisplay().drawLine(points[i].x, points[i].y, points[i+1].x, points[i+1].y, color);
+    }
+    // close path
+    getdisplay().drawLine(points[polysize-1].x, points[polysize-1].y, points[0].x, points[0].y, color);
+}
+
 // Split string into words, whitespace separated
 std::vector<String> split(const String &s) {
     std::vector<String> words;
@@ -361,6 +372,24 @@ void drawTextRalign(int16_t x, int16_t y, String text) {
     getdisplay().print(text);
 }
 
+// Draw text inside box, normal or inverted
+void drawTextBoxed(Rect box, String text, uint16_t fg, uint16_t bg, bool inverted, bool border) {
+    if (inverted) {
+        getdisplay().fillRect(box.x, box.y, box.w, box.h, fg);
+        getdisplay().setTextColor(bg);
+    } else {
+        if (border) {
+            getdisplay().fillRect(box.x + 1, box.y + 1, box.w - 2, box.h - 2, bg);
+            getdisplay().drawRect(box.x, box.y, box.w, box.h, fg);
+        }
+        getdisplay().setTextColor(fg);
+    }
+    uint16_t border_offset = box.h / 4; // 25% of box height
+    getdisplay().setCursor(box.x + border_offset, box.y + box.h - border_offset);
+    getdisplay().print(text);
+    getdisplay().setTextColor(fg);
+}
+
 // 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

@@ -4,6 +4,7 @@
 #include <Arduino.h>
 #include "OBP60Hardware.h"
 #include "LedSpiTask.h"
+#include "Graphics.h"
 #include <GxEPD2_BW.h>                  // E-paper lib V2
 #include <Adafruit_FRAM_I2C.h>          // I2C FRAM
 
@@ -62,19 +63,15 @@ GxEPD2_BW<GxEPD2_420_SE0420NQ04, GxEPD2_420_SE0420NQ04::HEIGHT> & getdisplay();
 #define PAGE_UPDATE 1      // page wants display to update
 #define PAGE_HIBERNATE 2   // page wants displey to hibernate
 
-struct Point {
-    double x;
-    double y;
-};
-Point rotatePoint(const Point& origin, const Point& p, double angle);
-std::vector<Point> rotatePoints(const Point& origin, const std::vector<Point>& pts, double angle);
 void fillPoly4(const std::vector<Point>& p4, uint16_t color);
+void drawPoly(const std::vector<Point>& points, uint16_t color);
 
 void deepSleep(CommonData &common);
 
 uint8_t getLastPage();
 
 void hardwareInit(GwApi *api);
+void powerInit(String powermode);
 
 void setPortPin(uint pin, bool value);          // Set port pin for extension port
 
@@ -96,6 +93,7 @@ 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 drawTextBoxed(Rect box, String text, uint16_t fg, uint16_t bg, bool inverted, bool border);
 
 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/OBP60Formatter.cpp

@@ -49,9 +49,9 @@ String formatLongitude(double lon) {
     return String(degree, 0) + "\x90 " + String(minute, 4) + "' " + ((lon > 0) ? "E" : "W");
 }
 
-FormatedData formatValue(GwApi::BoatValue *value, CommonData &commondata){
+FormattedData formatValue(GwApi::BoatValue *value, CommonData &commondata){
     GwLog *logger = commondata.logger;
-    FormatedData result;
+    FormattedData result;
     static int dayoffset = 0;
     double rawvalue = 0;
 

lib/obp60task/OBPDataOperations.cpp

@@ -0,0 +1,157 @@
+#include "OBPDataOperations.h"
+
+double WindUtils::to2PI(double a)
+{
+    a = fmod(a, 2 * M_PI);
+    if (a < 0.0) {
+        a += 2 * M_PI;
+    }
+    return a;
+}
+
+double WindUtils::toPI(double a)
+{
+    a += M_PI;
+    a = to2PI(a);
+    a -= M_PI;
+
+    return a;
+}
+
+double WindUtils::to360(double a)
+{
+    a = fmod(a, 360);
+    if (a < 0.0) {
+        a += 360;
+    }
+    return a;
+}
+
+double WindUtils::to180(double a)
+{
+    a += 180;
+    a = to360(a);
+    a -= 180;
+
+    return a;
+}
+
+void WindUtils::toCart(const double* phi, const double* r, double* x, double* y)
+{
+    *x = *r * sin(*phi);
+    *y = *r * cos(*phi);
+}
+
+void WindUtils::toPol(const double* x, const double* y, double* phi, double* r)
+{
+    *phi = (M_PI / 2) - atan2(*y, *x);
+    *phi = to2PI(*phi);
+    *r = sqrt(*x * *x + *y * *y);
+}
+
+void WindUtils::addPolar(const double* phi1, const double* r1,
+    const double* phi2, const double* r2,
+    double* phi, double* r)
+{
+    double x1, y1, x2, y2;
+    toCart(phi1, r1, &x1, &y1);
+    toCart(phi2, r2, &x2, &y2);
+    x1 += x2;
+    y1 += y2;
+    toPol(&x1, &y1, phi, r);
+}
+
+void WindUtils::calcTwdSA(const double* AWA, const double* AWS,
+    const double* CTW, const double* STW, const double* HDT,
+    double* TWD, double* TWS, double* TWA)
+{
+    double awd = *AWA + *HDT;
+    awd = to2PI(awd);
+    double stw = -*STW;
+    //    Serial.println("\ncalcTwdSA: AWA: " + String(*AWA) + ", AWS: " + String(*AWS) + ", CTW: " + String(*CTW) + ", STW: " + String(*STW) + ", HDT: " + String(*HDT));
+    addPolar(&awd, AWS, CTW, &stw, TWD, TWS);
+
+    // Normalize TWD and TWA to 0-360°
+    *TWD = to2PI(*TWD);
+    *TWA = toPI(*TWD - *HDT);
+    //    Serial.println("calcTwdSA: TWD: " + String(*TWD) + ", TWS: " + String(*TWS));
+}
+
+bool WindUtils::calcTrueWind(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 stw, hdt, ctw;
+    double twd, tws, twa;
+    static const double DBL_MIN = std::numeric_limits<double>::lowest();
+
+    if (*hdtVal != DBL_MIN) {
+        hdt = *hdtVal; // Use HDT if available
+    } else {
+        if (*hdmVal != DBL_MIN && *varVal != DBL_MIN) {
+            hdt = *hdmVal + *varVal; // Use corrected HDM if HDT is not available
+            hdt = to2PI(hdt);
+        } else if (*cogVal != DBL_MIN) {
+            hdt = *cogVal; // Use COG as fallback if HDT and HDM are not available
+        } else {
+            return false; // Cannot calculate without valid HDT or HDM+VAR or COG
+        }
+    }
+
+    if (*cogVal != DBL_MIN) {
+        ctw = *cogVal; // Use COG as CTW if available
+        //    ctw = *cogVal + ((*cogVal - hdt) / 2); // Estimate CTW from COG
+    } else {
+        ctw = hdt; // 2nd approximation for CTW; hdt must exist if we reach this part of the code
+    }
+
+    if (*stwVal != DBL_MIN) {
+        stw = *stwVal; // Use STW if available
+    } else if (*sogVal != DBL_MIN) {
+        stw = *sogVal;
+    } else {
+        // If STW and SOG are not available, we cannot calculate true wind
+        return false;
+    }
+
+    if ((*awaVal == DBL_MIN) || (*awsVal == DBL_MIN)) {
+        // Cannot calculate true wind without valid AWA, AWS; other checks are done earlier
+        return false;
+    } else {
+        calcTwdSA(awaVal, awsVal, &ctw, &stw, &hdt, &twd, &tws, &twa);
+        *twdVal = twd;
+        *twsVal = tws;
+        *twaVal = twa;
+
+        return true;
+    }
+}
+
+void HstryBuf::fillWndBufSimData(tBoatHstryData& hstryBufs)
+// Fill most part of TWD and TWS history buffer with simulated data
+{
+    double value = 20.0;
+    int16_t value2 = 0;
+    for (int i = 0; i < 900; i++) {
+        value += random(-20, 20);
+        value = WindUtils::to360(value);
+        value2 = static_cast<int16_t>(value * DEG_TO_RAD * 1000);
+        hstryBufs.twdHstry->add(value2);
+    }
+}
+
+/* double genTwdSimDat()
+{
+    simTwd += random(-20, 20);
+    if (simTwd < 0.0)
+        simTwd += 360.0;
+    if (simTwd >= 360.0)
+        simTwd -= 360.0;
+
+    int16_t z = static_cast<int16_t>(DegToRad(simTwd) * 1000.0);
+    pageData.boatHstry.twdHstry->add(z); // Fill the buffer with some test data
+
+    simTws += random(-200, 150) / 10.0; // TWS value in knots
+    simTws = constrain(simTws, 0.0f, 50.0f); // Ensure TWS is between 0 and 50 knots
+    twsValue = simTws;
+}*/

lib/obp60task/OBPDataOperations.h

@@ -0,0 +1,36 @@
+#pragma once
+#include "GwApi.h"
+#include "OBPRingBuffer.h"
+#include <Arduino.h>
+#include <math.h>
+
+typedef struct {
+    RingBuffer<int16_t>* twdHstry;
+    RingBuffer<int16_t>* twsHstry;
+} tBoatHstryData; // Holds pointers to all history buffers for boat data
+
+class HstryBuf {
+
+public:
+    void fillWndBufSimData(tBoatHstryData& hstryBufs); // Fill most part of the TWD and TWS history buffer with simulated data
+};
+
+class WindUtils {
+
+public:
+    static double to2PI(double a);
+    static double toPI(double a);
+    static double to360(double a);
+    static double to180(double a);
+    static void toCart(const double* phi, const double* r, double* x, double* y);
+    static void toPol(const double* x, const double* y, double* phi, double* r);
+    static void addPolar(const double* phi1, const double* r1,
+        const double* phi2, const double* r2,
+        double* phi, double* r);
+    static void calcTwdSA(const double* AWA, const double* AWS,
+        const double* CTW, const double* STW, const double* HDT,
+        double* TWD, double* TWS, double* TWA);
+    static bool calcTrueWind(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);
+};

lib/obp60task/OBPRingBuffer.h

@@ -0,0 +1,60 @@
+#pragma once
+#include "GwSynchronized.h"
+#include <algorithm>
+#include <limits>
+#include <stdexcept>
+#include <vector>
+#include "WString.h"
+
+template <typename T>
+class RingBuffer {
+private:
+    mutable SemaphoreHandle_t bufLocker;
+    std::vector<T> buffer;
+    size_t capacity;
+    size_t head; // Points to the next insertion position
+    size_t first; // Points to the first (oldest) valid element
+    size_t last; // Points to the last (newest) valid element
+    size_t count; // Number of valid elements currently in buffer
+    bool is_Full; // Indicates that all buffer elements are used and ringing is in use
+    T MIN_VAL; // lowest possible value of buffer
+    T MAX_VAL; // highest possible value of buffer of type <T>
+
+    // metadata for buffer
+    String dataName; // Name of boat data in buffer
+    String dataFmt; // Format of boat data in buffer
+    int updFreq; // Update frequency in milliseconds
+    T smallest; // Value range of buffer: smallest value
+    T largest; // Value range of buffer: biggest value
+
+public:
+    RingBuffer(size_t size);
+    void setMetaData(String name, String format, int updateFrequency, T minValue, T maxValue); // Set meta data for buffer
+    bool getMetaData(String& name, String& format, int& updateFrequency, T& minValue, T& maxValue); // Get meta data of buffer
+    String getName() const; // Get buffer name
+    void add(const T& value); // Add a new value to  buffer
+    T get(size_t index) const; // Get value at specific position (0-based index from oldest to newest)
+    T getFirst() const; // Get the first (oldest) value in buffer
+    T getLast() const; // Get the last (newest) value in buffer
+    T getMin() const; // Get the lowest value in buffer
+    T getMin(size_t amount) const; // Get minimum value of the last <amount> values of buffer
+    T getMax() const; // Get the highest value in buffer
+    T getMax(size_t amount) const; // Get maximum value of the last <amount> values of buffer
+    T getMid() const; // Get mid value between <min> and <max> value in buffer
+    T getMid(size_t amount) const; // Get mid value between <min> and <max> value of the last <amount> values of buffer
+    T getMedian() const; // Get the median value in buffer
+    T getMedian(size_t amount) const; // Get the median value of the last <amount> values of buffer
+    size_t getCapacity() const; // Get the buffer capacity (maximum size)
+    size_t getCurrentSize() const; // Get the current number of elements in buffer
+    size_t getFirstIdx() const; // Get the index of oldest value in buffer
+    size_t getLastIdx() const; // Get the index of newest value in buffer
+    bool isEmpty() const; // Check if buffer is empty
+    bool isFull() const; // Check if buffer is full
+    T getMinVal() const; // Get lowest possible value for buffer; used for initialized buffer data
+    T getMaxVal() const; // Get highest possible value for buffer
+    void clear(); // Clear buffer
+    T operator[](size_t index) const; // Operator[] for convenient access (same as get())
+    std::vector<T> getAllValues() const; // Get all current values as a vector
+};
+
+#include "OBPRingBuffer.tpp"

lib/obp60task/OBPRingBuffer.tpp

@@ -0,0 +1,376 @@
+#include "OBPRingBuffer.h"
+
+template <typename T>
+RingBuffer<T>::RingBuffer(size_t size)
+    : capacity(size)
+    , head(0)
+    , first(0)
+    , last(0)
+    , count(0)
+    , is_Full(false)
+{
+    bufLocker = xSemaphoreCreateMutex();
+
+    if (size == 0) {
+        // return false;
+    }
+
+    MIN_VAL = std::numeric_limits<T>::lowest();
+    MAX_VAL = std::numeric_limits<T>::max();
+    dataName = "";
+    dataFmt = "";
+    updFreq = -1;
+    smallest = MIN_VAL;
+    largest = MAX_VAL;
+
+    buffer.resize(size, MIN_VAL);
+
+    // return true;
+}
+
+// Specify meta data of buffer content
+template <typename T>
+void RingBuffer<T>::setMetaData(String name, String format, int updateFrequency, T minValue, T maxValue)
+{
+    GWSYNCHRONIZED(&bufLocker);
+    dataName = name;
+    dataFmt = format;
+    updFreq = updateFrequency;
+    smallest = std::max(MIN_VAL, minValue);
+    largest = std::min(MAX_VAL, maxValue);
+}
+
+// Get meta data of buffer content
+template <typename T>
+bool RingBuffer<T>::getMetaData(String& name, String& format, int& updateFrequency, T& minValue, T& maxValue)
+{
+    if (dataName == "" || dataFmt == "" || updFreq == -1) {
+        return false; // Meta data not set
+    }
+
+    GWSYNCHRONIZED(&bufLocker);
+    name = dataName;
+    format = dataFmt;
+    updateFrequency = updFreq;
+    minValue = smallest;
+    maxValue = largest;
+    return true;
+}
+
+// Get buffer name
+template <typename T>
+String RingBuffer<T>::getName() const
+{
+    return dataName;
+}
+
+// Add a new value to buffer
+template <typename T>
+void RingBuffer<T>::add(const T& value)
+{
+    GWSYNCHRONIZED(&bufLocker);
+    if (value < smallest || value > largest) {
+        buffer[head] = MIN_VAL; // Store MIN_VAL if value is out of range
+    } else {
+        buffer[head] = value;
+    }
+    last = head;
+
+    if (is_Full) {
+        first = (first + 1) % capacity; // Move pointer to oldest element when overwriting
+    } else {
+        count++;
+        if (count == capacity) {
+            is_Full = true;
+        }
+    }
+
+    head = (head + 1) % capacity;
+}
+
+// Get value at specific position (0-based index from oldest to newest)
+template <typename T>
+T RingBuffer<T>::get(size_t index) const
+{
+    GWSYNCHRONIZED(&bufLocker);
+    if (isEmpty() || index < 0 || index >= count) {
+        return MIN_VAL;
+    }
+
+    size_t realIndex = (first + index) % capacity;
+    return buffer[realIndex];
+}
+
+// Operator[] for convenient access (same as get())
+template <typename T>
+T RingBuffer<T>::operator[](size_t index) const
+{
+    return get(index);
+}
+
+// Get the first (oldest) value in the buffer
+template <typename T>
+T RingBuffer<T>::getFirst() const
+{
+    if (isEmpty()) {
+        return MIN_VAL;
+    }
+    return get(0);
+}
+
+// Get the last (newest) value in the buffer
+template <typename T>
+T RingBuffer<T>::getLast() const
+{
+    if (isEmpty()) {
+        return MIN_VAL;
+    }
+    return get(count - 1);
+}
+
+// Get the lowest value in the buffer
+template <typename T>
+T RingBuffer<T>::getMin() const
+{
+    if (isEmpty()) {
+        return MIN_VAL;
+    }
+
+    T minVal = MAX_VAL;
+    T value;
+    for (size_t i = 0; i < count; i++) {
+        value = get(i);
+        if (value < minVal && value != MIN_VAL) {
+            minVal = value;
+        }
+    }
+    return minVal;
+}
+
+// Get minimum value of the last <amount> values of buffer
+template <typename T>
+T RingBuffer<T>::getMin(size_t amount) const
+{
+    if (isEmpty() || amount <= 0) {
+        return MIN_VAL;
+    }
+    if (amount > count)
+        amount = count;
+
+    T minVal = MAX_VAL;
+    T value;
+    for (size_t i = 0; i < amount; i++) {
+        value = get(count - 1 - i);
+        if (value < minVal && value != MIN_VAL) {
+            minVal = value;
+        }
+    }
+    return minVal;
+}
+
+// Get the highest value in the buffer
+template <typename T>
+T RingBuffer<T>::getMax() const
+{
+    if (isEmpty()) {
+        return MIN_VAL;
+    }
+
+    T maxVal = MIN_VAL;
+    T value;
+    for (size_t i = 0; i < count; i++) {
+        value = get(i);
+        if (value > maxVal && value != MIN_VAL) {
+            maxVal = value;
+        }
+    }
+    return maxVal;
+}
+
+// Get maximum value of the last <amount> values of buffer
+template <typename T>
+T RingBuffer<T>::getMax(size_t amount) const
+{
+    if (isEmpty() || amount <= 0) {
+        return MIN_VAL;
+    }
+    if (amount > count)
+        amount = count;
+
+    T maxVal = MIN_VAL;
+    T value;
+    for (size_t i = 0; i < amount; i++) {
+        value = get(count - 1 - i);
+        if (value > maxVal && value != MIN_VAL) {
+            maxVal = value;
+        }
+    }
+    return maxVal;
+}
+
+// Get mid value between <min> and <max> value in the buffer
+template <typename T>
+T RingBuffer<T>::getMid() const
+{
+    if (isEmpty()) {
+        return MIN_VAL;
+    }
+
+    return (getMin() + getMax()) / static_cast<T>(2);
+}
+
+// Get mid value between <min> and <max> value of the last <amount> values of buffer
+template <typename T>
+T RingBuffer<T>::getMid(size_t amount) const
+{
+    if (isEmpty() || amount <= 0) {
+        return MIN_VAL;
+    }
+
+    if (amount > count)
+        amount = count;
+
+    return (getMin(amount) + getMax(amount)) / static_cast<T>(2);
+}
+
+// Get the median value in the buffer
+template <typename T>
+T RingBuffer<T>::getMedian() const
+{
+    if (isEmpty()) {
+        return MIN_VAL;
+    }
+
+    // Create a temporary vector with current valid elements
+    std::vector<T> temp;
+    temp.reserve(count);
+
+    for (size_t i = 0; i < count; i++) {
+        temp.push_back(get(i));
+    }
+
+    // Sort to find median
+    std::sort(temp.begin(), temp.end());
+
+    if (count % 2 == 1) {
+        // Odd number of elements
+        return temp[count / 2];
+    } else {
+        // Even number of elements - return average of middle two
+        // Note: For integer types, this truncates. For floating point, it's exact.
+        return (temp[count / 2 - 1] + temp[count / 2]) / 2;
+    }
+}
+
+// Get the median value of the last <amount> values of buffer
+template <typename T>
+T RingBuffer<T>::getMedian(size_t amount) const
+{
+    if (isEmpty() || amount <= 0) {
+        return MIN_VAL;
+    }
+    if (amount > count)
+        amount = count;
+
+    // Create a temporary vector with current valid elements
+    std::vector<T> temp;
+    temp.reserve(amount);
+
+    for (size_t i = 0; i < amount; i++) {
+        temp.push_back(get(i));
+    }
+
+    // Sort to find median
+    std::sort(temp.begin(), temp.end());
+
+    if (amount % 2 == 1) {
+        // Odd number of elements
+        return temp[amount / 2];
+    } else {
+        // Even number of elements - return average of middle two
+        // Note: For integer types, this truncates. For floating point, it's exact.
+        return (temp[amount / 2 - 1] + temp[amount / 2]) / 2;
+    }
+}
+
+// Get the buffer capacity (maximum size)
+template <typename T>
+size_t RingBuffer<T>::getCapacity() const
+{
+    return capacity;
+}
+
+// Get the current number of elements in the buffer
+template <typename T>
+size_t RingBuffer<T>::getCurrentSize() const
+{
+    return count;
+}
+
+// Get the first index of buffer
+template <typename T>
+size_t RingBuffer<T>::getFirstIdx() const
+{
+    return first;
+}
+
+// Get the last index of buffer
+template <typename T>
+size_t RingBuffer<T>::getLastIdx() const
+{
+    return last;
+}
+
+// Check if buffer is empty
+template <typename T>
+bool RingBuffer<T>::isEmpty() const
+{
+    return count == 0;
+}
+
+// Check if buffer is full
+template <typename T>
+bool RingBuffer<T>::isFull() const
+{
+    return is_Full;
+}
+
+// Get lowest possible value for buffer; used for non-set buffer data
+template <typename T>
+T RingBuffer<T>::getMinVal() const
+{
+    return MIN_VAL;
+}
+
+// Get highest possible value for buffer
+template <typename T>
+T RingBuffer<T>::getMaxVal() const
+{
+    return MAX_VAL;
+}
+
+// Clear buffer
+template <typename T>
+void RingBuffer<T>::clear()
+{
+    GWSYNCHRONIZED(&bufLocker);
+    head = 0;
+    first = 0;
+    last = 0;
+    count = 0;
+    is_Full = false;
+}
+
+// Get all current values as a vector
+template <typename T>
+std::vector<T> RingBuffer<T>::getAllValues() const
+{
+    std::vector<T> result;
+    result.reserve(count);
+
+    for (size_t i = 0; i < count; i++) {
+        result.push_back(get(i));
+    }
+
+    return result;
+}

lib/obp60task/PageBattery.cpp

@@ -5,7 +5,7 @@
 
 class PageBattery : public Page
 {
-    int average = 0;                    // Average type [0...3], 0=off, 1=10s, 2=60s, 3=300s
+    int average = 0; // Average type [0...3], 0=off, 1=10s, 2=60s, 3=300s
 
     public:
     PageBattery(CommonData &common){

lib/obp60task/PageClock.cpp

@@ -120,7 +120,7 @@ bool homevalid = false; // homelat and homelon are valid
         }
         else{
             value1 = simtime++;                         // Simulation data for time value 11:36 in seconds
-        }                                               // Other simulation data see OBP60Formater.cpp
+        }                                               // Other simulation data see OBP60Formatter.cpp
         bool valid1 = bvalue1->valid;                   // Valid information 
         String svalue1 = formatValue(bvalue1, *commonData).svalue;    // Formatted value as string including unit conversion and switching decimal places
         String unit1 = formatValue(bvalue1, *commonData).unit;        // Unit of value

lib/obp60task/PageCompass.cpp

@@ -83,7 +83,7 @@ class PageCompass : public Page
         String DataText[HowManyValues];
         String DataUnits[HowManyValues];
         String DataFormat[HowManyValues];
-        FormatedData TheFormattedData;
+        FormattedData TheFormattedData;
 
         for (int i = 0; i < HowManyValues; i++){
             bvalue = pageData.values[i];

lib/obp60task/PageFourValues.cpp

@@ -53,7 +53,7 @@ class PageFourValues : public Page
         String unit1 = formatValue(bvalue1, *commonData).unit;        // Unit of value
 
         // Get boat values #2
-        GwApi::BoatValue *bvalue2 = pageData.values[1]; // Second element in list (only one value by PageOneValue)
+        GwApi::BoatValue *bvalue2 = pageData.values[1]; // Second element in list
         String name2 = xdrDelete(bvalue2->getName());   // Value name
         name2 = name2.substring(0, 6);                  // String length limit for value name
         calibrationData.calibrateInstance(bvalue2, logger); // Check if boat data value is to be calibrated
@@ -63,7 +63,7 @@ class PageFourValues : public Page
         String unit2 = formatValue(bvalue2, *commonData).unit;        // Unit of value
 
         // Get boat values #3
-        GwApi::BoatValue *bvalue3 = pageData.values[2]; // Second element in list (only one value by PageOneValue)
+        GwApi::BoatValue *bvalue3 = pageData.values[2]; // Third element in list
         String name3 = xdrDelete(bvalue3->getName());   // Value name
         name3 = name3.substring(0, 6);                  // String length limit for value name
         calibrationData.calibrateInstance(bvalue3, logger); // Check if boat data value is to be calibrated
@@ -73,7 +73,7 @@ class PageFourValues : public Page
         String unit3 = formatValue(bvalue3, *commonData).unit;        // Unit of value
 
         // Get boat values #4
-        GwApi::BoatValue *bvalue4 = pageData.values[3]; // Second element in list (only one value by PageOneValue)
+        GwApi::BoatValue *bvalue4 = pageData.values[3]; // Fourth element in list
         String name4 = xdrDelete(bvalue4->getName());   // Value name
         name4 = name4.substring(0, 6);                  // String length limit for value name
         calibrationData.calibrateInstance(bvalue4, logger); // Check if boat data value is to be calibrated
@@ -301,7 +301,7 @@ static Page *createPage(CommonData &common){
  * this will be number of BoatValue pointers in pageData.values
  */
 PageDescription registerPageFourValues(
-    "FourValues",    // Page name
+    "FourValues",   // Page name
     createPage,     // Action
     4,              // Number of bus values depends on selection in Web configuration
     true            // Show display header on/off

lib/obp60task/PageKeelPosition.cpp

@@ -86,21 +86,20 @@ public:
             float x = 200 + (rInstrument-30)*sin(i/180.0*pi);  //  x-coordinate dots
             float y = 150 - (rInstrument-30)*cos(i/180.0*pi);  //  y-coordinate cots 
             const char *ii = " ";
-            switch (i)
-            {
-            case 0: ii=" "; break;      // Use a blank for a empty scale value
-            case 30 : ii=" "; break;
-            case 60 : ii=" "; break;
-            case 90 : ii="45"; break;
-            case 120 : ii="30"; break;
-            case 150 : ii="15"; break;
-            case 180 : ii="0"; break;
-            case 210 : ii="15"; break;
-            case 240 : ii="30"; break;
-            case 270 : ii="45"; break;
-            case 300 : ii=" "; break;
-            case 330 : ii=" "; break;
-            default: break;
+            switch (i) {
+                case 0: ii=" "; break;      // Use a blank for a empty scale value
+                case 30 : ii=" "; break;
+                case 60 : ii=" "; break;
+                case 90 : ii="45"; break;
+                case 120 : ii="30"; break;
+                case 150 : ii="15"; break;
+                case 180 : ii="0"; break;
+                case 210 : ii="15"; break;
+                case 240 : ii="30"; break;
+                case 270 : ii="45"; break;
+                case 300 : ii=" "; break;
+                case 330 : ii=" "; break;
+                default: break;
             }
 
             // Print text centered on position x, y

lib/obp60task/PageRollPitch.cpp

@@ -41,9 +41,9 @@ public:
         String backlightMode = config->getString(config->backlight);
         int rolllimit = config->getInt(config->rollLimit);
         String roffset = config->getString(config->rollOffset);
-        double rolloffset = roffset.toFloat()/360*(2*PI);
+        double rolloffset = roffset.toFloat()/360*(2*M_PI);
         String poffset = config->getString(config->pitchOffset);
-        double pitchoffset = poffset.toFloat()/360*(2*PI);
+        double pitchoffset = poffset.toFloat()/360*(2*M_PI);
 
         // Get boat values for roll
         GwApi::BoatValue *bvalue1 = pageData.values[0]; // First element in list (xdrRoll)
@@ -55,17 +55,17 @@ public:
         }
         else{
             if(simulation == true){
-                value1 = (20 + float(random(0, 50)) / 10.0)/360*2*PI;
+                value1 = (20 + float(random(0, 50)) / 10.0)/360*2*M_PI;
             }
             else{
                 value1 = 0;
             }
         }
-        if(value1/(2*PI)*360 > -10 && value1/(2*PI)*360 < 10){
-            svalue1 = String(value1/(2*PI)*360,1);      // Convert raw value to string
+        if(value1/(2*M_PI)*360 > -10 && value1/(2*M_PI)*360 < 10){
+            svalue1 = String(value1/(2*M_PI)*360,1);      // Convert raw value to string
         }
         else{
-            svalue1 = String(value1/(2*PI)*360,0);
+            svalue1 = String(value1/(2*M_PI)*360,0);
         }
         if(valid1 == true){
            svalue1old = svalue1;                                       // Save the old value
@@ -80,17 +80,17 @@ public:
         }
         else{
              if(simulation == true){
-                value2 = (float(random(-5, 5)))/360*2*PI;
+                value2 = (float(random(-5, 5)))/360*2*M_PI;
             }
             else{
                 value2 = 0;
             }
         }
-        if(value2/(2*PI)*360 > -10 && value2/(2*PI)*360 < 10){
-            svalue2 = String(value2/(2*PI)*360,1);      // Convert raw value to string
+        if(value2/(2*PI)*360 > -10 && value2/(2*M_PI)*360 < 10){
+            svalue2 = String(value2/(2*M_PI)*360,1);      // Convert raw value to string
         }
         else{
-            svalue2 = String(value2/(2*PI)*360,0);
+            svalue2 = String(value2/(2*M_PI)*360,0);
         }
         if(valid2 == true){
            svalue2old = svalue2;                                       // Save the old value
@@ -99,7 +99,7 @@ public:
         // Optical warning by limit violation
         if(String(flashLED) == "Limit Violation"){
             // Limits for roll
-            if(value1*360/(2*PI) >= -1*rolllimit && value1*360/(2*PI) <= rolllimit){
+            if(value1*360/(2*M_PI) >= -1*rolllimit && value1*360/(2*M_PI) <= rolllimit){
                 setBlinkingLED(false);
                 setFlashLED(false);
             }
@@ -177,19 +177,18 @@ public:
             // Only scaling +/- 60 degrees
             if((i >= 0 && i <= 60) ||  (i >= 300 && i <= 360)){
                 // Scaling values
-                float x = 200 + (rInstrument+25)*sin(i/180.0*pi);  //  x-coordinate dots
-                float y = 150 - (rInstrument+25)*cos(i/180.0*pi);  //  y-coordinate cots
+                float x = 200 + (rInstrument+25)*sin(i/180.0*M_PI);  //  x-coordinate dots
+                float y = 150 - (rInstrument+25)*cos(i/180.0*M_PI);  //  y-coordinate cots
                 const char *ii = "";
-                switch (i)
-                {
-                case 0: ii="0"; break;
-                case 20 : ii="20"; break;
-                case 40 : ii="40"; break;
-                case 60 : ii="60"; break;
-                case 300 : ii="60"; break;
-                case 320 : ii="40"; break;
-                case 340 : ii="20"; break;
-                default: break;
+                switch (i) {
+                    case 0: ii="0"; break;
+                    case 20 : ii="20"; break;
+                    case 40 : ii="40"; break;
+                    case 60 : ii="60"; break;
+                    case 300 : ii="60"; break;
+                    case 320 : ii="40"; break;
+                    case 340 : ii="20"; break;
+                    default: break;
                 }
 
                 // Print text centered on position x, y
@@ -203,11 +202,11 @@ public:
                 }
 
                 // Draw sub scale with dots
-                float x1c = 200 + rInstrument*sin(i/180.0*pi);
-                float y1c = 150 - rInstrument*cos(i/180.0*pi);
+                float x1c = 200 + rInstrument*sin(i/180.0*M_PI);
+                float y1c = 150 - rInstrument*cos(i/180.0*M_PI);
                 getdisplay().fillCircle((int)x1c, (int)y1c, 2, commonData->fgcolor);
-                float sinx=sin(i/180.0*pi);
-                float cosx=cos(i/180.0*pi); 
+                float sinx=sin(i/180.0*M_PI);
+                float cosx=cos(i/180.0*M_PI);
 
                 // Draw sub scale with lines (two triangles)
                 if(i % 20 == 0){
@@ -229,11 +228,11 @@ public:
         // Draw mast position pointer
         float startwidth = 8;           // Start width of pointer
 
-//        value1 = (2 * pi ) - value1;    // Mirror coordiante system for pointer, keel and boat
+//        value1 = (2 * M_PI ) - value1;    // Mirror coordiante system for pointer, keel and boat
 
         if(valid1 == true || holdvalues == true || simulation == true){
-            float sinx=sin(value1 + pi);
-            float cosx=cos(value1 + pi);
+            float sinx=sin(value1 + M_PI);
+            float cosx=cos(value1 + M_PI);
             // Normal pointer
             // Pointer as triangle with center base 2*width
             float xx1 = -startwidth;

lib/obp60task/PageSystem.cpp

@@ -2,6 +2,7 @@
 
 #include "Pagedata.h"
 #include "OBP60Extensions.h"
+#include "ConfigMenu.h"
 #include "images/logo64.xbm"
 #include <esp32/clk.h>
 #include "qrcode.h"
@@ -25,37 +26,377 @@
  * Consists of some sub-pages with following content:
  *   1. Hard and software information
  *   2. System settings
- *   3. NMEA2000 device list
+ *   3. System configuration: running and NVRAM
+ *   4. NMEA2000 device list
+ *   5. SD Card information if available
+ *
+ * TODO
+ *    - setCpuFrequencyMhz(80|160|240);
+ *    - Accesspoint / ! Änderung im Gatewaycode erforderlich?
+ *         if (! isApActive()) {
+ *           wifiSSID = config->getString(config->wifiSSID);
+ *           wifiPass = config->getString(config->wifiPass);
+ *           wifiSoftAP(wifiSSID, wifiPass);
+ *         }
+ *     - Power mode
+ *         powerInit(powermode);
  */
 
 class PageSystem : public Page
 {
-uint64_t chipid;
-bool simulation;
-bool sdcard;
-String buzzer_mode;
-uint8_t buzzer_power;
-String cpuspeed;
-String rtc_module;
-String gps_module;
-String env_module;
+private:
+    GwConfigHandler *config;
+    GwLog *logger;
 
-String batt_sensor;
-String solar_sensor;
-String gen_sensor;
-String rot_sensor;
-double homelat;
-double homelon;
+    // NVRAM config options
+    String flashLED;
 
-char mode = 'N'; // (N)ormal, (S)ettings, (D)evice list, (C)ard
+    // Generic data access
+
+    uint64_t chipid;
+    bool simulation;
+    bool sdcard;
+    String buzzer_mode;
+    uint8_t buzzer_power;
+    String cpuspeed;
+    String rtc_module;
+    String gps_module;
+    String env_module;
+
+    String batt_sensor;
+    String solar_sensor;
+    String gen_sensor;
+    String rot_sensor;
+    double homelat;
+    double homelon;
+
+    char mode = 'N'; // (N)ormal, (S)ettings, (C)onfiguration, (D)evice list, c(A)rd
+    int8_t editmode = -1; // marker for menu/edit/set function
+
+    ConfigMenu *menu;
+
+    void incMode() {
+        if (mode == 'N') {        // Normal
+            mode = 'S';
+        } else if (mode == 'S') { // Settings
+            mode = 'C';
+        } else if (mode == 'C') { // Config
+            mode = 'D';
+        } else if (mode == 'D') { // Device list
+            if (sdcard) {
+                mode = 'A';       // SD-Card
+            } else {
+                mode = 'N';
+            }
+        } else {
+            mode = 'N';
+        }
+    }
+
+    void decMode() {
+        if (mode == 'N') {
+            if (sdcard) {
+                mode = 'A';
+            } else {
+                mode = 'D';
+            }
+        } else if (mode == 'S') { // Settings
+            mode = 'N';
+        } else if (mode == 'C') { // Config
+            mode = 'S';
+        } else if (mode == 'D') { // Device list
+            mode = 'C';
+        } else {
+            mode = 'D';
+        }
+    }
+
+    void displayModeNormal() {
+        // Default system page view
+
+        uint16_t y0 = 155;
+
+        getdisplay().setFont(&Ubuntu_Bold12pt8b);
+        getdisplay().setCursor(8, 48);
+        getdisplay().print("System information");
+
+        getdisplay().drawXBitmap(320, 25, logo64_bits, logo64_width, logo64_height, commonData->fgcolor);
+
+        getdisplay().setFont(&Ubuntu_Bold8pt8b);
+
+        char ssid[13];
+        snprintf(ssid, 13, "%04X%08X", (uint16_t)(chipid >> 32), (uint32_t)chipid);
+        displayBarcode(String(ssid), 320, 200, 2);
+        getdisplay().setCursor(8, 70);
+        getdisplay().print(String("MCUDEVICE-") + String(ssid));
+
+        getdisplay().setCursor(8, 95);
+        getdisplay().print("Firmware version: ");
+        getdisplay().setCursor(150, 95);
+        getdisplay().print(VERSINFO);
+
+        getdisplay().setCursor(8, 113);
+        getdisplay().print("Board version: ");
+        getdisplay().setCursor(150, 113);
+        getdisplay().print(BOARDINFO);
+        getdisplay().print(String(" HW ") + String(PCBINFO));
+
+        getdisplay().setCursor(8, 131);
+        getdisplay().print("Display version: ");
+        getdisplay().setCursor(150, 131);
+        getdisplay().print(DISPLAYINFO);
+        getdisplay().print("; GxEPD2 v");
+        getdisplay().print(GXEPD2INFO);
+
+        getdisplay().setCursor(8, 265);
+#ifdef BOARD_OBP60S3
+        getdisplay().print("Press STBY to enter deep sleep mode");
+#endif
+#ifdef BOARD_OBP40S3
+        getdisplay().print("Press wheel to enter deep sleep mode");
+#endif
+
+        // Flash memory size
+        uint32_t flash_size = ESP.getFlashChipSize();
+        getdisplay().setCursor(8, y0);
+        getdisplay().print("FLASH:");
+        getdisplay().setCursor(90, y0);
+        getdisplay().print(String(flash_size / 1024) + String(" kB"));
+
+        // PSRAM memory size
+        uint32_t psram_size = ESP.getPsramSize();
+        getdisplay().setCursor(8, y0 + 16);
+        getdisplay().print("PSRAM:");
+        getdisplay().setCursor(90, y0 + 16);
+        getdisplay().print(String(psram_size / 1024) + String(" kB"));
+
+        // FRAM available / status
+        getdisplay().setCursor(8, y0 + 32);
+        getdisplay().print("FRAM:");
+        getdisplay().setCursor(90, y0 + 32);
+        getdisplay().print(hasFRAM ? "available" : "not found");
+
+#ifdef BOARD_OBP40S3
+        // SD-Card
+        getdisplay().setCursor(8, y0 + 48);
+        getdisplay().print("SD-Card:");
+        getdisplay().setCursor(90, y0 + 48);
+        if (sdcard) {
+            uint64_t cardsize = SD.cardSize() / (1024 * 1024);
+            getdisplay().print(String(cardsize) + String(" MB"));
+        } else {
+            getdisplay().print("off");
+        }
+#endif
+
+        // CPU speed config / active
+        getdisplay().setCursor(202, y0);
+        getdisplay().print("CPU speed:");
+        getdisplay().setCursor(300, y0);
+        getdisplay().print(cpuspeed);
+        getdisplay().print(" / ");
+        int cpu_freq = esp_clk_cpu_freq() / 1000000;
+        getdisplay().print(String(cpu_freq));
+
+        // total RAM free
+        int Heap_free = esp_get_free_heap_size();
+        getdisplay().setCursor(202, y0 + 16);
+        getdisplay().print("Total free:");
+        getdisplay().setCursor(300, y0 + 16);
+        getdisplay().print(String(Heap_free));
+
+        // RAM free for task
+        int RAM_free = uxTaskGetStackHighWaterMark(NULL);
+        getdisplay().setCursor(202, y0 + 32);
+        getdisplay().print("Task free:");
+        getdisplay().setCursor(300, y0 + 32);
+        getdisplay().print(String(RAM_free));
+    }
+
+    void displayModeConfig() {
+        // Configuration interface
+
+        uint16_t x0 = 16;
+        uint16_t y0 = 80;
+        uint16_t dy = 20;
+
+        getdisplay().setFont(&Ubuntu_Bold12pt8b);
+        getdisplay().setCursor(8, 48);
+        getdisplay().print("System configuration");
+
+        getdisplay().setFont(&Ubuntu_Bold8pt8b);
+
+        /*getdisplay().setCursor(x0, y0);
+        getdisplay().print("CPU speed: 80 | 160 | 240");
+        getdisplay().setCursor(x0, y0 + 1 * dy);
+        getdisplay().print("Power mode: Max | 5V | Min");
+        getdisplay().setCursor(x0, y0 + 2 * dy);
+        getdisplay().print("Accesspoint: On | Off");
+
+        // TODO Change NVRAM-preferences settings here
+        getdisplay().setCursor(x0, y0 + 4 * dy);
+        getdisplay().print("Simulation: On | Off"); */
+
+        getdisplay().setFont(&Ubuntu_Bold8pt8b);
+        for (int i = 0 ; i < menu->getItemCount(); i++) {
+            ConfigMenuItem *itm = menu->getItemByIndex(i);
+            if (!itm) {
+                LOG_DEBUG(GwLog::ERROR, "Menu item not found: %d", i);
+            } else {
+                Rect r = menu->getItemRect(i);
+                bool inverted = (i == menu->getActiveIndex());
+                drawTextBoxed(r, itm->getLabel(), commonData->fgcolor, commonData->bgcolor, inverted, false);
+                if (inverted and editmode > 0) {
+                    // triangle as edit marker
+                    getdisplay().fillTriangle(r.x + r.w + 20, r.y, r.x + r.w + 30, r.y + r.h / 2, r.x + r.w + 20, r.y + r.h,  commonData->fgcolor);
+                }
+                getdisplay().setCursor(r.x + r.w + 40, r.y + r.h - 4);
+                if (itm->getType() == "int") {
+                    getdisplay().print(itm->getValue());
+                    getdisplay().print(itm->getUnit());
+                } else {
+                     getdisplay().print(itm->getValue() == 0 ? "No" : "Yes");
+                }
+            }
+        }
+    }
+
+    void displayModeSettings() {
+        // View some of the current settings
+
+        const uint16_t x0 = 8;
+        const uint16_t y0 = 72;
+
+        getdisplay().setFont(&Ubuntu_Bold12pt8b);
+        getdisplay().setCursor(x0, 48);
+        getdisplay().print("System settings");
+
+        getdisplay().setFont(&Ubuntu_Bold8pt8b);
+
+        // left column
+        getdisplay().setCursor(x0, y0);
+        getdisplay().print("Simulation:");
+        getdisplay().setCursor(120, y0);
+        getdisplay().print(simulation ? "on" : "off");
+
+        getdisplay().setCursor(x0, y0 + 16);
+        getdisplay().print("Environment:");
+        getdisplay().setCursor(120, y0 + 16);
+        getdisplay().print(env_module);
+
+        getdisplay().setCursor(x0, y0 + 32);
+        getdisplay().print("Buzzer:");
+        getdisplay().setCursor(120, y0 + 32);
+        getdisplay().print(buzzer_mode);
+
+        getdisplay().setCursor(x0, y0 + 64);
+        getdisplay().print("GPS:");
+        getdisplay().setCursor(120, y0 + 64);
+        getdisplay().print(gps_module);
+
+        getdisplay().setCursor(x0, y0 + 80);
+        getdisplay().print("RTC:");
+        getdisplay().setCursor(120, y0 + 80);
+        getdisplay().print(rtc_module);
+
+        getdisplay().setCursor(x0, y0 + 96);
+        getdisplay().print("Wifi:");
+        getdisplay().setCursor(120, y0 + 96);
+        getdisplay().print(commonData->status.wifiApOn ? "on" : "off");
+
+        // Home location
+        getdisplay().setCursor(x0, y0 + 128);
+        getdisplay().print("Home Lat.:");
+        drawTextRalign(230, y0 + 128, formatLatitude(homelat));
+        getdisplay().setCursor(x0, y0 + 144);
+        getdisplay().print("Home Lon.:");
+        drawTextRalign(230, y0 + 144, formatLongitude(homelon));
+
+        // right column
+        getdisplay().setCursor(202, y0);
+        getdisplay().print("Batt. sensor:");
+        getdisplay().setCursor(320, y0);
+        getdisplay().print(batt_sensor);
+
+        // Solar sensor
+        getdisplay().setCursor(202, y0 + 16);
+        getdisplay().print("Solar sensor:");
+        getdisplay().setCursor(320, y0 + 16);
+        getdisplay().print(solar_sensor);
+
+        // Generator sensor
+        getdisplay().setCursor(202, y0 + 32);
+        getdisplay().print("Gen. sensor:");
+        getdisplay().setCursor(320, y0 + 32);
+        getdisplay().print(gen_sensor);
+
+#ifdef BOARD_OBP60S3
+        // Backlight infos
+        getdisplay().setCursor(202, y0 + 64);
+        getdisplay().print("Backlight:");
+        getdisplay().setCursor(320, y0 + 64);
+        getdisplay().printf("%d%%", commonData->backlight.brightness);
+        // TODO test function with OBP60 device
+        getdisplay().setCursor(202, y0 + 80);
+        getdisplay().print("Bl color:");
+        getdisplay().setCursor(320, y0 + 80);
+        getdisplay().print(commonData->backlight.color.toName());
+        getdisplay().setCursor(202, y0 + 96);
+        getdisplay().print("Bl mode:");
+        getdisplay().setCursor(320, y0 + 96);
+        getdisplay().print(commonData->backlight.mode);
+        // TODO Buzzer mode and power
+#endif
+
+        // Gyro sensor
+        // WIP / FEATURE
+    }
+
+    void displayModeSDCard() {
+        // SD card info
+        uint16_t x0 = 20;
+        uint16_t y0 = 72;
+
+        getdisplay().setFont(&Ubuntu_Bold12pt8b);
+        getdisplay().setCursor(8, 48);
+        getdisplay().print("SD Card info");
+
+        getdisplay().setFont(&Ubuntu_Bold8pt8b);
+        getdisplay().setCursor(x0, y0);
+        getdisplay().print("Work in progress...");
+    }
+
+    void displayModeDevicelist() {
+        // NMEA2000 device list
+        getdisplay().setFont(&Ubuntu_Bold12pt8b);
+        getdisplay().setCursor(8, 48);
+        getdisplay().print("NMEA2000 device list");
+
+        getdisplay().setFont(&Ubuntu_Bold8pt8b);
+        getdisplay().setCursor(20, 80);
+        getdisplay().print("RxD: ");
+        getdisplay().print(String(commonData->status.n2kRx));
+        getdisplay().setCursor(20, 100);
+        getdisplay().print("TxD: ");
+        getdisplay().print(String(commonData->status.n2kTx));
+    }
+
+   void storeConfig() {
+       menu->storeValues();
+   }
 
 public:
     PageSystem(CommonData &common){
         commonData = &common;
-        common.logger->logDebug(GwLog::LOG,"Instantiate PageSystem");
+        config = commonData->config;
+        logger = commonData->logger;
+
+        logger->logDebug(GwLog::LOG,"Instantiate PageSystem");
         if (hasFRAM) {
             mode = fram.read(FRAM_SYSTEM_MODE);
         }
+        flashLED = common.config->getString(common.config->flashLED);
+
         chipid = ESP.getEfuseMac();
         simulation = common.config->getBool(common.config->useSimuData);
 #ifdef BOARD_OBP40S3
@@ -74,6 +415,24 @@ 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();
+
+        // CPU speed: 80 | 160 | 240
+        // Power mode: Max | 5V | Min
+        // Accesspoint: On | Off
+
+        // TODO Change NVRAM-preferences settings here
+        // getdisplay().setCursor(x0, y0 + 4 * dy);
+        // getdisplay().print("Simulation: On | Off");
+
+        // Initialize config menu
+        menu = new ConfigMenu("Options", 40, 80);
+        menu->setItemDimension(150, 20);
+
+        ConfigMenuItem *newitem;
+        newitem = menu->addItem("accesspoint", "Accesspoint", "bool", 0, "");
+        newitem = menu->addItem("simulation", "Simulation", "on/off", 0, "");
+        menu->setItemActive("accesspoint");
+
     }
 
     virtual void setupKeys(){
@@ -90,19 +449,7 @@ public:
         // Switch display mode
         commonData->logger->logDebug(GwLog::LOG, "System keyboard handler");
         if (key == 2) {
-            if (mode == 'N') {
-                mode = 'S';
-            } else if (mode == 'S') {
-                mode = 'D';
-            } else if (mode == 'D') {
-                if (sdcard) {
-                    mode = 'C';
-                } else {
-                    mode = 'N';
-                }
-            } else {
-                mode = 'N';
-            }
+            incMode();
             if (hasFRAM) fram.write(FRAM_SYSTEM_MODE, mode);
             return 0;
         }
@@ -126,8 +473,13 @@ public:
         }
 #endif
 #ifdef BOARD_OBP40S3
-        // grab cursor keys to disable page navigation
-        if (key == 9 or key == 10) {
+        // use cursor keys for local mode navigation
+        if (key == 9) {
+            incMode();
+            return 0;
+        }
+        if (key == 10) {
+            decMode();
             return 0;
         }
         // standby / deep sleep
@@ -168,225 +520,35 @@ public:
         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"){
+        if(flashLED == "Limit Violation"){
             setBlinkingLED(false);
             setFlashLED(false); 
         }
 
-        // Logging boat values
-        LOG_DEBUG(GwLog::LOG,"Drawing at PageSystem");
-
-        // Draw page
-        //***********************************************************
-
-        uint16_t x0 = 8;  // left column
-        uint16_t y0 = 48; // data table starts here
+        // Logging page information
+        LOG_DEBUG(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
+        getdisplay().setPartialWindow(0, 0, getdisplay().width(), getdisplay().height());
 
-        if (mode == 'N') {
-
-            getdisplay().setFont(&Ubuntu_Bold12pt8b);
-            getdisplay().setCursor(8, 48);
-            getdisplay().print("System Information");
-
-            getdisplay().drawXBitmap(320, 25, logo64_bits, logo64_width, logo64_height, commonData->fgcolor);
-
-            getdisplay().setFont(&Ubuntu_Bold8pt8b);
-            y0 = 155;
-
-            char ssid[13];
-            snprintf(ssid, 13, "%04X%08X", (uint16_t)(chipid >> 32), (uint32_t)chipid);
-            displayBarcode(String(ssid), 320, 200, 2);
-            getdisplay().setCursor(8, 70);
-            getdisplay().print(String("MCUDEVICE-") + String(ssid));
-
-            getdisplay().setCursor(8, 95);
-            getdisplay().print("Firmware version: ");
-            getdisplay().setCursor(150, 95);
-            getdisplay().print(VERSINFO);
-
-            getdisplay().setCursor(8, 113);
-            getdisplay().print("Board version: ");
-            getdisplay().setCursor(150, 113);
-            getdisplay().print(BOARDINFO);
-            getdisplay().print(String(" HW ") + String(PCBINFO));
-
-            getdisplay().setCursor(8, 131);
-            getdisplay().print("Display version: ");
-            getdisplay().setCursor(150, 131);
-            getdisplay().print(DISPLAYINFO);
-            getdisplay().print("; GxEPD2 v");
-            getdisplay().print(GXEPD2INFO);
-
-            getdisplay().setCursor(8, 265);
-#ifdef BOARD_OBP60S3
-            getdisplay().print("Press STBY to enter deep sleep mode");
-#endif
-#ifdef BOARD_OBP40S3
-            getdisplay().print("Press wheel to enter deep sleep mode");
-#endif
-
-            // Flash memory size
-            uint32_t flash_size = ESP.getFlashChipSize();
-            getdisplay().setCursor(8, y0);
-            getdisplay().print("FLASH:");
-            getdisplay().setCursor(90, y0);
-            getdisplay().print(String(flash_size / 1024) + String(" kB"));
-
-            // PSRAM memory size
-            uint32_t psram_size = ESP.getPsramSize();
-            getdisplay().setCursor(8, y0 + 16);
-            getdisplay().print("PSRAM:");
-            getdisplay().setCursor(90, y0 + 16);
-            getdisplay().print(String(psram_size / 1024) + String(" kB"));
-
-            // FRAM available / status
-            getdisplay().setCursor(8, y0 + 32);
-            getdisplay().print("FRAM:");
-            getdisplay().setCursor(90, y0 + 32);
-            getdisplay().print(hasFRAM ? "available" : "not found");
-
-#ifdef BOARD_OBP40S3
-            // SD-Card
-            getdisplay().setCursor(8, y0 + 48);
-            getdisplay().print("SD-Card:");
-            getdisplay().setCursor(90, y0 + 48);
-            if (sdcard) {
-                uint64_t cardsize = SD.cardSize() / (1024 * 1024);
-                getdisplay().print(String(cardsize) + String(" MB"));
-            } else {
-                getdisplay().print("off");
-            }
-#endif
-
-            // CPU speed config / active
-            getdisplay().setCursor(202, y0);
-            getdisplay().print("CPU speed:");
-            getdisplay().setCursor(300, y0);
-            getdisplay().print(cpuspeed);
-            getdisplay().print(" / ");
-            int cpu_freq = esp_clk_cpu_freq() / 1000000;
-            getdisplay().print(String(cpu_freq));
-
-            // total RAM free
-            int Heap_free = esp_get_free_heap_size();
-            getdisplay().setCursor(202, y0 + 16);
-            getdisplay().print("Total free:");
-            getdisplay().setCursor(300, y0 + 16);
-            getdisplay().print(String(Heap_free));
-
-            // RAM free for task
-            int RAM_free = uxTaskGetStackHighWaterMark(NULL);
-            getdisplay().setCursor(202, y0 + 32);
-            getdisplay().print("Task free:");
-            getdisplay().setCursor(300, y0 + 32);
-            getdisplay().print(String(RAM_free));
-
-        } else if (mode == 'S') {
-            // Settings
-            
-            getdisplay().setFont(&Ubuntu_Bold12pt8b);
-            getdisplay().setCursor(x0, 48);
-            getdisplay().print("System settings");
-
-            getdisplay().setFont(&Ubuntu_Bold8pt8b);
-            x0 = 8;
-            y0 = 72;
-
-            // left column
-            getdisplay().setCursor(x0, y0);
-            getdisplay().print("Simulation:");
-            getdisplay().setCursor(120, y0);
-            getdisplay().print(simulation ? "on" : "off");
-
-            getdisplay().setCursor(x0, y0 + 16);
-            getdisplay().print("Environment:");
-            getdisplay().setCursor(120, y0 + 16);
-            getdisplay().print(env_module);
-
-            getdisplay().setCursor(x0, y0 + 32);
-            getdisplay().print("Buzzer:");
-            getdisplay().setCursor(120, y0 + 32);
-            getdisplay().print(buzzer_mode);
-
-            getdisplay().setCursor(x0, y0 + 64);
-            getdisplay().print("GPS:");
-            getdisplay().setCursor(120, y0 + 64);
-            getdisplay().print(gps_module);
-
-            getdisplay().setCursor(x0, y0 + 80);
-            getdisplay().print("RTC:");
-            getdisplay().setCursor(120, y0 + 80);
-            getdisplay().print(rtc_module);
-
-            getdisplay().setCursor(x0, y0 + 96);
-            getdisplay().print("Wifi:");
-            getdisplay().setCursor(120, y0 + 96);
-            getdisplay().print(commonData->status.wifiApOn ? "on" : "off");
-
-            // Home location
-            getdisplay().setCursor(x0, y0 + 128);
-            getdisplay().print("Home Lat.:");
-            getdisplay().setCursor(120, y0 + 128);
-            getdisplay().print(formatLatitude(homelat));
-            getdisplay().setCursor(x0, y0 + 144);
-            getdisplay().print("Home Lon.:");
-            getdisplay().setCursor(120, y0 + 144);
-            getdisplay().print(formatLongitude(homelon));
-
-            // right column
-            getdisplay().setCursor(202, y0);
-            getdisplay().print("Batt. sensor:");
-            getdisplay().setCursor(320, y0);
-            getdisplay().print(batt_sensor);
-
-            // Solar sensor
-            getdisplay().setCursor(202, y0 + 16);
-            getdisplay().print("Solar sensor:");
-            getdisplay().setCursor(320, y0 + 16);
-            getdisplay().print(solar_sensor);
-
-            // Generator sensor
-            getdisplay().setCursor(202, y0 + 32);
-            getdisplay().print("Gen. sensor:");
-            getdisplay().setCursor(320, y0 + 32);
-            getdisplay().print(gen_sensor);
-
-            // Gyro sensor
-
-        } else if (mode == 'C') {
-            // Card info
-            getdisplay().setFont(&Ubuntu_Bold12pt8b);
-            getdisplay().setCursor(8, 48);
-            getdisplay().print("SD Card info");
-
-            getdisplay().setFont(&Ubuntu_Bold8pt8b);
-
-            x0 = 20;
-            y0 = 72;
-            getdisplay().setCursor(x0, y0);
-            getdisplay().print("Work in progress...");
-
-
-        } else {
-            // NMEA2000 device list
-            getdisplay().setFont(&Ubuntu_Bold12pt8b);
-            getdisplay().setCursor(8, 48);
-            getdisplay().print("NMEA2000 device list");
-
-            getdisplay().setFont(&Ubuntu_Bold8pt8b);
-            getdisplay().setCursor(20, 80);
-            getdisplay().print("RxD: ");
-            getdisplay().print(String(commonData->status.n2kRx));
-            getdisplay().setCursor(20, 100);
-            getdisplay().print("TxD: ");
-            getdisplay().print(String(commonData->status.n2kTx));
+        // call current system page
+        switch (mode) {
+            case 'N':
+                displayModeNormal();
+                break;
+            case 'S':
+                displayModeSettings();
+                break;
+            case 'C':
+                displayModeConfig();
+                break;
+            case 'A':
+                displayModeSDCard();
+                break;
+            case 'D':
+                displayModeDevicelist();
+                break;
         }
 
         // Update display

lib/obp60task/PageThreeValues.cpp

@@ -51,7 +51,7 @@ class PageThreeValues : public Page
         String unit1 = formatValue(bvalue1, *commonData).unit;        // Unit of value
 
         // Get boat values #2
-        GwApi::BoatValue *bvalue2 = pageData.values[1]; // Second element in list (only one value by PageOneValue)
+        GwApi::BoatValue *bvalue2 = pageData.values[1]; // Second element in list
         String name2 = xdrDelete(bvalue2->getName());   // Value name
         name2 = name2.substring(0, 6);                  // String length limit for value name
         calibrationData.calibrateInstance(bvalue2, logger); // Check if boat data value is to be calibrated
@@ -61,7 +61,7 @@ class PageThreeValues : public Page
         String unit2 = formatValue(bvalue2, *commonData).unit;        // Unit of value
 
         // Get boat values #3
-        GwApi::BoatValue *bvalue3 = pageData.values[2]; // Second element in list (only one value by PageOneValue)
+        GwApi::BoatValue *bvalue3 = pageData.values[2]; // Third element in list
         String name3 = xdrDelete(bvalue3->getName());      // Value name
         name3 = name3.substring(0, 6);                  // String length limit for value name
         calibrationData.calibrateInstance(bvalue3, logger); // Check if boat data value is to be calibrated

lib/obp60task/PageTwoValues.cpp

@@ -49,7 +49,7 @@ class PageTwoValues : public Page
         String unit1 = formatValue(bvalue1, *commonData).unit;        // Unit of value
 
         // Get boat values #2
-        GwApi::BoatValue *bvalue2 = pageData.values[1]; // Second element in list (only one value by PageOneValue)
+        GwApi::BoatValue *bvalue2 = pageData.values[1]; // Second element in list
         String name2 = xdrDelete(bvalue2->getName());   // Value name
         name2 = name2.substring(0, 6);                  // String length limit for value name
         calibrationData.calibrateInstance(bvalue2, logger); // Check if boat data value is to be calibrated

lib/obp60task/PageVoltage.cpp

@@ -398,11 +398,11 @@ static Page *createPage(CommonData &common){
  * and will will provide the names of the fixed values we need
  */
 PageDescription registerPageVoltage(
-    "Voltage",      // Name of page
-    createPage,     // Action
-    0,              // Number of bus values depends on selection in Web configuration
-    {},             // Names of bus values undepends on selection in Web configuration (refer GwBoatData.h)
-    true            // Show display header on/off
+    "Voltage",  // Name of page
+    createPage, // Action
+    0,          // Number of bus values depends on selection in Web configuration
+    {},         // Names of bus values undepends on selection in Web configuration (refer GwBoatData.h)
+    true        // Show display header on/off
 );
 
 #endif

lib/obp60task/PageWind.cpp

@@ -633,11 +633,11 @@ static Page *createPage(CommonData &common){
  * and will will provide the names of the fixed values we need
  */
 PageDescription registerPageWind(
-    "Wind",             // Page name
-    createPage,         // Action
-    0,                  // Number of bus values depends on selection in Web configuration
+    "Wind",     // Page name
+    createPage, // Action
+    0,          // Number of bus values depends on selection in Web configuration
     {"AWS","AWA", "TWS", "TWA"}, // Bus values we need in the page
-    true                // Show display header on/off
+    true        // Show display header on/off
 );
 
 #endif

lib/obp60task/PageWindPlot.cpp

@@ -0,0 +1,479 @@
+#if defined BOARD_OBP60S3 || defined BOARD_OBP40S3
+
+#include "BoatDataCalibration.h"
+#include "OBP60Extensions.h"
+#include "OBPRingBuffer.h"
+#include "Pagedata.h"
+#include <vector>
+
+static const double radToDeg = 180.0 / M_PI; // Conversion factor from radians to degrees
+
+// Get maximum difference of last <amount> of TWD ringbuffer values to center chart
+int getRng(const RingBuffer<int16_t>& windDirHstry, int center, size_t amount)
+{
+    int minVal = windDirHstry.getMinVal();
+    size_t count = windDirHstry.getCurrentSize();
+    //    size_t capacity = windDirHstry.getCapacity();
+    //    size_t last = windDirHstry.getLastIdx();
+
+    if (windDirHstry.isEmpty() || amount <= 0) {
+        return minVal;
+    }
+    if (amount > count)
+        amount = count;
+
+    int value = 0;
+    int rng = 0;
+    int maxRng = minVal;
+    // Start from the newest value (last) and go backwards x times
+    for (size_t i = 0; i < amount; i++) {
+        //        value = windDirHstry.get(((last - i) % capacity + capacity) % capacity);
+        value = windDirHstry.get(count - 1 - i);
+
+        if (value == minVal) {
+            continue;
+        }
+
+        value = value / 1000.0 * radToDeg;
+        rng = abs(((value - center + 540) % 360) - 180);
+        if (rng > maxRng)
+            maxRng = rng;
+    }
+    if (maxRng > 180) {
+        maxRng = 180;
+    }
+
+    return maxRng;
+}
+
+// ****************************************************************
+class PageWindPlot : public Page {
+
+    bool keylock = false; // Keylock
+    char chrtMode = 'D'; // Chart mode: 'D' for TWD, 'S' for TWS, 'B' for both
+    int dataIntv = 1; // Update interval for wind history chart:
+                      // (1)|(2)|(3)|(4) seconds for approx. 4, 8, 12, 16 min. history chart
+    bool showTWS = true; // Show TWS value in chart area
+
+public:
+    PageWindPlot(CommonData& common)
+    {
+        commonData = &common;
+        common.logger->logDebug(GwLog::LOG, "Instantiate PageWindPlot");
+    }
+
+    virtual void setupKeys()
+    {
+        Page::setupKeys();
+        //        commonData->keydata[0].label = "MODE";
+        commonData->keydata[1].label = "INTV";
+        commonData->keydata[4].label = "TWS";
+    }
+
+    // Key functions
+    virtual int handleKey(int key)
+    {
+        // Set chart mode TWD | TWS -> to be implemented
+        if (key == 1) {
+            if (chrtMode == 'D') {
+                chrtMode = 'S';
+            } else if (chrtMode == 'S') {
+                chrtMode = 'B';
+            } else {
+                chrtMode = 'D';
+            }
+            return 0; // Commit the key
+        }
+
+        // Set interval for wind history chart update time
+        if (key == 2) {
+            if (dataIntv == 1) {
+                dataIntv = 2;
+            } else if (dataIntv == 2) {
+                dataIntv = 3;
+            } else if (dataIntv == 3) {
+                dataIntv = 4;
+            } else {
+                dataIntv = 1;
+            }
+            return 0; // Commit the key
+        }
+
+        // Switch TWS on/off
+        if (key == 5) {
+            showTWS = !showTWS;
+            return 0; // Commit the key
+        }
+
+        // Keylock function
+        if (key == 11) { // Code for keylock
+            commonData->keylock = !commonData->keylock;
+            return 0; // Commit the key
+        }
+        return key;
+    }
+
+    int displayPage(PageData& pageData)
+    {
+        GwConfigHandler* config = commonData->config;
+        GwLog* logger = commonData->logger;
+
+        float twsValue; // TWS value in chart area
+        static String twdName, twdUnit; // TWD name and unit
+        static int updFreq; // Update frequency for TWD
+        static int16_t twdLowest, twdHighest; // TWD range
+        // static int16_t twdBufMinVal; // lowest possible twd buffer value; used for non-set data
+
+        // current boat data values; TWD only for validation test, TWS for display of current value
+        const int numBoatData = 2;
+        GwApi::BoatValue* bvalue;
+        String BDataName[numBoatData];
+        double BDataValue[numBoatData];
+        bool BDataValid[numBoatData];
+        String BDataText[numBoatData];
+        String BDataUnit[numBoatData];
+        String BDataFormat[numBoatData];
+
+        static bool isInitialized = false; // Flag to indicate that page is initialized
+        static bool wndDataValid = false; // Flag to indicate if wind data is valid
+        static int numNoData; // Counter for multiple invalid data values in a row
+        static bool simulation = false;
+        static bool holdValues = false;
+
+        static int width; // Screen width
+        static int height; // Screen height
+        static int xCenter; // Center of screen in x direction
+        static const int yOffset = 48; // Offset for y coordinates of chart area
+        static int cHeight; // height of chart area
+        static int bufSize; // History buffer size: 960 values for appox. 16 min. history chart
+        static int intvBufSize; // Buffer size used for currently selected time interval
+        int count; // current size of buffer
+        static int numWndVals; // number of wind values available for current interval selection
+        static int bufStart; // 1st data value in buffer to show
+        int numAddedBufVals; // Number of values added to buffer since last display
+        size_t currIdx; // Current index in TWD history buffer
+        static size_t lastIdx; // Last index of TWD history buffer
+        static size_t lastAddedIdx = 0; // Last index of TWD history buffer when new data was added
+        static int oldDataIntv; // remember recent user selection of data interval
+
+        static int wndCenter; // chart wind center value position
+        static int wndLeft; // chart wind left value position
+        static int wndRight; // chart wind right value position
+        static int chrtRng; // Range of wind values from mid wind value to min/max wind value in degrees
+        int diffRng; // Difference between mid and current wind value
+        static const int dfltRng = 40; // Default range for chart
+        int midWndDir; // New value for wndCenter after chart start / shift
+        static int simTwd; // Simulation value for TWD
+        static float simTws; // Simulation value for TWS
+
+        int x, y; // x and y coordinates for drawing
+        static int prevX, prevY; // Last x and y coordinates for drawing
+        static float chrtScl; // Scale for wind values in pixels per degree
+        int chrtVal; // Current wind value
+        static int chrtPrevVal; // Last wind value in chart area for check if value crosses 180 degree line
+
+        LOG_DEBUG(GwLog::LOG, "Display page WindPlot");
+
+        // Get config data
+        simulation = config->getBool(config->useSimuData);
+        holdValues = config->getBool(config->holdvalues);
+        String flashLED = config->getString(config->flashLED);
+        String backlightMode = config->getString(config->backlight);
+
+        if (!isInitialized) {
+            width = getdisplay().width();
+            height = getdisplay().height();
+            xCenter = width / 2;
+            cHeight = height - yOffset - 22;
+            bufSize = pageData.boatHstry.twdHstry->getCapacity();
+            numNoData = 0;
+            simTwd = pageData.boatHstry.twdHstry->getLast() / 1000.0 * radToDeg;
+            simTws = 0;
+            twsValue = 0;
+            bufStart = 0;
+            oldDataIntv = 0;
+            numAddedBufVals, currIdx, lastIdx = 0;
+            lastAddedIdx = pageData.boatHstry.twdHstry->getLastIdx();
+            pageData.boatHstry.twdHstry->getMetaData(twdName, twdUnit, updFreq, twdLowest, twdHighest);
+            wndCenter = INT_MIN;
+            midWndDir = 0;
+            diffRng = dfltRng;
+            chrtRng = dfltRng;
+
+            isInitialized = true; // Set flag to indicate that page is now initialized
+        }
+
+        // read boat data values; TWD only for validation test, TWS for display of current value
+        for (int i = 0; i < numBoatData; i++) {
+            bvalue = pageData.values[i];
+            BDataName[i] = xdrDelete(bvalue->getName());
+            BDataName[i] = BDataName[i].substring(0, 6); // String length limit for value name
+            calibrationData.calibrateInstance(bvalue, logger); // Check if boat data value is to be calibrated
+            BDataValue[i] = bvalue->value; // Value as double in SI unit
+            BDataValid[i] = bvalue->valid;
+            BDataText[i] = formatValue(bvalue, *commonData).svalue; // Formatted value as string including unit conversion and switching decimal places
+            BDataUnit[i] = formatValue(bvalue, *commonData).unit;
+            BDataFormat[i] = bvalue->getFormat(); // Unit of value
+        }
+
+        // Optical warning by limit violation (unused)
+        if (String(flashLED) == "Limit Violation") {
+            setBlinkingLED(false);
+            setFlashLED(false);
+        }
+
+        // Identify buffer size and buffer start position for chart
+        count = pageData.boatHstry.twdHstry->getCurrentSize();
+        currIdx = pageData.boatHstry.twdHstry->getLastIdx();
+        numAddedBufVals = (currIdx - lastAddedIdx + bufSize) % bufSize; // Number of values added to buffer since last display
+        if (dataIntv != oldDataIntv || count == 1) {
+            // new data interval selected by user
+            intvBufSize = cHeight * dataIntv;
+            numWndVals = min(count, (cHeight - 60) * dataIntv);
+            bufStart = max(0, count - numWndVals);
+            lastAddedIdx = currIdx;
+            oldDataIntv = dataIntv;
+        } else {
+            numWndVals = numWndVals + numAddedBufVals;
+            lastAddedIdx = currIdx;
+            if (count == bufSize) {
+                bufStart = max(0, bufStart - numAddedBufVals);
+            }
+        }
+        LOG_DEBUG(GwLog::DEBUG, "PageWindPlot Dataset: count: %d, TWD: %.0f, TWS: %.1f, TWD_valid? %d, intvBufSize: %d, numWndVals: %d, bufStart: %d, numAddedBufVals: %d, lastIdx: %d, old: %d, act: %d",
+            count, pageData.boatHstry.twdHstry->getLast() / 1000.0 * radToDeg, pageData.boatHstry.twsHstry->getLast() / 10.0 * 1.94384, BDataValid[0],
+            intvBufSize, numWndVals, bufStart, numAddedBufVals, pageData.boatHstry.twdHstry->getLastIdx(), oldDataIntv, dataIntv);
+
+        // Set wndCenter from 1st real buffer value
+        if (wndCenter == INT_MIN || (wndCenter == 0 && count == 1)) {
+            midWndDir = pageData.boatHstry.twdHstry->getMid(numWndVals);
+            if (midWndDir != INT16_MIN) {
+                midWndDir = midWndDir / 1000.0 * radToDeg;
+                wndCenter = int((midWndDir + (midWndDir >= 0 ? 5 : -5)) / 10) * 10; // Set new center value; round to nearest 10 degree value
+            } else {
+                wndCenter = 0;
+            }
+            LOG_DEBUG(GwLog::DEBUG, "PageWindPlot Range Init: count: %d, TWD: %.0f, wndCenter: %d, diffRng: %d, chrtRng: %d", count, pageData.boatHstry.twdHstry->getLast() / 1000.0 * radToDeg,
+                wndCenter, diffRng, chrtRng);
+        } else {
+            // check and adjust range between left, center, and right chart limit
+            diffRng = getRng(*pageData.boatHstry.twdHstry, wndCenter, numWndVals);
+            diffRng = (diffRng == INT16_MIN ? 0 : diffRng);
+            if (diffRng > chrtRng) {
+                chrtRng = int((diffRng + (diffRng >= 0 ? 9 : -1)) / 10) * 10; // Round up to next 10 degree value
+            } else if (diffRng + 10 < chrtRng) { // Reduce chart range for higher resolution if possible
+                chrtRng = max(dfltRng, int((diffRng + (diffRng >= 0 ? 9 : -1)) / 10) * 10);
+            }
+        }
+        chrtScl = float(width) / float(chrtRng) / 2.0; // Chart scale: pixels per degree
+        wndLeft = wndCenter - chrtRng;
+        if (wndLeft < 0)
+            wndLeft += 360;
+        wndRight = (chrtRng < 180 ? wndCenter + chrtRng : wndCenter + chrtRng - 1);
+        if (wndRight >= 360)
+            wndRight -= 360;
+
+        // Draw page
+        //***********************************************************************
+
+        // Set display in partial refresh mode
+        getdisplay().setPartialWindow(0, 0, width, height); // Set partial update
+        getdisplay().setTextColor(commonData->fgcolor);
+
+        // chart lines
+        getdisplay().fillRect(0, yOffset, width, 2, commonData->fgcolor);
+        getdisplay().fillRect(xCenter, yOffset, 1, cHeight, commonData->fgcolor);
+
+        // chart labels
+        char sWndLbl[4]; // char buffer for Wind angle label
+        getdisplay().setFont(&Ubuntu_Bold12pt8b);
+        getdisplay().setCursor(xCenter - 88, yOffset - 3);
+        getdisplay().print("TWD"); // Wind data name
+        snprintf(sWndLbl, 4, "%03d", (wndCenter < 0) ? (wndCenter + 360) : wndCenter);
+        drawTextCenter(xCenter, yOffset - 11, sWndLbl);
+        getdisplay().drawCircle(xCenter + 25, yOffset - 17, 2, commonData->fgcolor); // <degree> symbol
+        getdisplay().drawCircle(xCenter + 25, yOffset - 17, 3, commonData->fgcolor); // <degree> symbol
+        getdisplay().setCursor(1, yOffset - 3);
+        snprintf(sWndLbl, 4, "%03d", (wndLeft < 0) ? (wndLeft + 360) : wndLeft);
+        getdisplay().print(sWndLbl); // Wind left value
+        getdisplay().drawCircle(46, yOffset - 17, 2, commonData->fgcolor); // <degree> symbol
+        getdisplay().drawCircle(46, yOffset - 17, 3, commonData->fgcolor); // <degree> symbol
+        getdisplay().setCursor(width - 50, yOffset - 3);
+        snprintf(sWndLbl, 4, "%03d", (wndRight < 0) ? (wndRight + 360) : wndRight);
+        getdisplay().print(sWndLbl); // Wind right value
+        getdisplay().drawCircle(width - 5, yOffset - 17, 2, commonData->fgcolor); // <degree> symbol
+        getdisplay().drawCircle(width - 5, yOffset - 17, 3, commonData->fgcolor); // <degree> symbol
+
+        if (pageData.boatHstry.twdHstry->getMax() == pageData.boatHstry.twdHstry->getMinVal()) {
+            // only <INT16_MIN> values in buffer -> no valid wind data available
+            wndDataValid = false;
+        } else if (!BDataValid[0]) {
+            // currently no valid TWD data available
+            numNoData++;
+            wndDataValid = true;
+            if (numNoData > 3) {
+                // If more than 4 invalid values in a row, send message
+                wndDataValid = false;
+            }
+        } else {
+            numNoData = 0; // reset data error counter
+            wndDataValid = true; // At least some wind data available
+        }
+        // Draw wind values in chart
+        //***********************************************************************
+        if (wndDataValid) {
+            for (int i = 0; i < (numWndVals / dataIntv); i++) {
+                chrtVal = static_cast<int>(pageData.boatHstry.twdHstry->get(bufStart + (i * dataIntv))); // show the latest wind values in buffer; keep 1st value constant in a rolling buffer
+                if (chrtVal == INT16_MIN) {
+                    chrtPrevVal = INT16_MIN;
+                } else {
+                    chrtVal = static_cast<int>((chrtVal / 1000.0 * radToDeg) + 0.5); // Convert to degrees and round
+                    x = ((chrtVal - wndLeft + 360) % 360) * chrtScl;
+                    y = yOffset + cHeight - i; // Position in chart area
+
+//                    if (i >= (numWndVals / dataIntv) - 10)
+                    if (i >= (numWndVals / dataIntv) - 1)
+                        LOG_DEBUG(GwLog::DEBUG, "PageWindPlot Chart: i: %d, chrtVal: %d, bufStart: %d, count: %d, linesToShow: %d", i, chrtVal, bufStart, count, (numWndVals / dataIntv));
+
+                    if ((i == 0) || (chrtPrevVal == INT16_MIN)) {
+                        // just a dot for 1st chart point or after some invalid values
+                        prevX = x;
+                        prevY = y;
+                    } else {
+                        // cross borders check; shift values to [-180..0..180]; when crossing borders, range is 2x 180 degrees
+                        int wndLeftDlt = -180 - ((wndLeft >= 180) ? (wndLeft - 360) : wndLeft);
+                        int chrtVal180 = ((chrtVal + wndLeftDlt + 180) % 360 + 360) % 360 - 180;
+                        int chrtPrevVal180 = ((chrtPrevVal + wndLeftDlt + 180) % 360 + 360) % 360 - 180;
+                        if (((chrtPrevVal180 >= -180) && (chrtPrevVal180 < -90) && (chrtVal180 > 90)) || ((chrtPrevVal180 <= 179) && (chrtPrevVal180 > 90) && chrtVal180 <= -90)) {
+                            // If current value crosses chart borders compared to previous value, split line
+                            int xSplit = (((chrtPrevVal180 > 0 ? wndRight : wndLeft) - wndLeft + 360) % 360) * chrtScl;
+                            getdisplay().drawLine(prevX, prevY, xSplit, y, commonData->fgcolor);
+                            getdisplay().drawLine(prevX, prevY - 1, ((xSplit != prevX) ? xSplit : xSplit - 1), ((xSplit != prevX) ? y - 1 : y), commonData->fgcolor);
+                            prevX = (((chrtVal180 > 0 ? wndRight : wndLeft) - wndLeft + 360) % 360) * chrtScl;
+                        }
+                    }
+
+                    // Draw line with 2 pixels width + make sure vertical line are drawn correctly
+                    getdisplay().drawLine(prevX, prevY, x, y, commonData->fgcolor);
+                    getdisplay().drawLine(prevX, prevY - 1, ((x != prevX) ? x : x - 1), ((x != prevX) ? y - 1 : y), commonData->fgcolor);
+                    chrtPrevVal = chrtVal;
+                    prevX = x;
+                    prevY = y;
+                }
+                // Reaching chart area top end
+                if (i >= (cHeight - 1)) {
+                    oldDataIntv = 0; // force reset of buffer start and number of values to show in next display loop
+
+                    int minWndDir = pageData.boatHstry.twdHstry->getMin(numWndVals) / 1000.0 * radToDeg;
+                    int maxWndDir = pageData.boatHstry.twdHstry->getMax(numWndVals) / 1000.0 * radToDeg;
+                    LOG_DEBUG(GwLog::DEBUG, "PageWindPlot FreeTop: Minimum: %d, Maximum: %d, OldwndCenter: %d", minWndDir, maxWndDir, wndCenter);
+//                    if ((minWndDir + 540 >= wndCenter + 540) || (maxWndDir + 540 <= wndCenter + 540)) {
+                    if (((minWndDir - wndCenter >= 0) && (minWndDir - wndCenter < 180)) || ((maxWndDir - wndCenter <= 0) && (maxWndDir - wndCenter >=180))) {
+                        // Check if all wind value are left or right of center value -> optimize chart range
+                        midWndDir = pageData.boatHstry.twdHstry->getMid(numWndVals) / 1000.0 * radToDeg;
+                        if (midWndDir != INT16_MIN) {
+                            wndCenter = int((midWndDir + (midWndDir >= 0 ? 5 : -5)) / 10) * 10; // Set new center value; round to nearest 10 degree value
+                        }
+                    }
+                    LOG_DEBUG(GwLog::DEBUG, "PageWindPlot FreeTop: cHeight: %d, bufStart: %d, numWndVals: %d, wndCenter: %d", cHeight, bufStart, numWndVals, wndCenter);
+                    break;
+                }
+            }
+
+        } else {
+            // No valid data available
+            LOG_DEBUG(GwLog::LOG, "PageWindPlot: No valid data available");
+            getdisplay().setFont(&Ubuntu_Bold10pt8b);
+            getdisplay().fillRect(xCenter - 33, height / 2 - 20, 66, 24, commonData->bgcolor); // Clear area for message
+            drawTextCenter(xCenter, height / 2 - 10, "No data");
+        }
+
+        // Print TWS value
+        if (showTWS) {
+            int currentZone;
+            static int lastZone = 0;
+            static bool flipTws = false;
+            int xPosTws;
+            static const int yPosTws = yOffset + 40;
+
+            twsValue = pageData.boatHstry.twsHstry->getLast() / 10.0 * 1.94384; // TWS value in knots
+
+            xPosTws = flipTws ? 20 : width - 138;
+            currentZone = (y >= yPosTws - 38) && (y <= yPosTws + 6) && (x >= xPosTws - 4) && (x <= xPosTws + 146) ? 1 : 0; // Define current zone for TWS value
+            if (currentZone != lastZone) {
+                // Only flip when x moves to a different zone
+                if ((y >= yPosTws - 38) && (y <= yPosTws + 6) && (x >= xPosTws - 4) && (x <= xPosTws + 146)) {
+                    flipTws = !flipTws;
+                    xPosTws = flipTws ? 20 : width - 145;
+                }
+            }
+            lastZone = currentZone;
+
+            getdisplay().fillRect(xPosTws - 4, yPosTws - 38, 142, 44, commonData->bgcolor); // Clear area for TWS value
+            getdisplay().setFont(&DSEG7Classic_BoldItalic16pt7b);
+            getdisplay().setCursor(xPosTws, yPosTws);
+            if (!BDataValid[1]) {
+                getdisplay().print("--.-");
+            } else {
+                double dbl = BDataValue[1] * 3.6 / 1.852;
+                if (dbl < 10.0) {
+                    getdisplay().printf("!%3.1f", dbl); // Value, round to 1 decimal
+                } else {
+                    getdisplay().printf("%4.1f", dbl); // Value, round to 1 decimal
+                }
+            }
+            getdisplay().setFont(&Ubuntu_Bold12pt8b);
+            getdisplay().setCursor(xPosTws + 82, yPosTws - 14);
+//            getdisplay().print("TWS"); // Name
+            getdisplay().print(BDataName[1]); // Name
+            getdisplay().setFont(&Ubuntu_Bold8pt8b);
+//            getdisplay().setCursor(xPosTws + 78, yPosTws + 1);
+            getdisplay().setCursor(xPosTws + 82, yPosTws + 1);
+//            getdisplay().printf(" kn"); // Unit
+            getdisplay().print(BDataUnit[1]); // Unit
+        }
+
+        // chart Y axis labels; print at last to overwrite potential chart lines in label area
+        int yPos;
+        int chrtLbl;
+        getdisplay().setFont(&Ubuntu_Bold8pt8b);
+        for (int i = 1; i <= 3; i++) {
+            yPos = yOffset + (i * 60);
+            getdisplay().fillRect(0, yPos, width, 1, commonData->fgcolor);
+            getdisplay().fillRect(0, yPos - 8, 24, 16, commonData->bgcolor); // Clear small area to remove potential chart lines
+            getdisplay().setCursor(1, yPos + 4);
+            if (count >= intvBufSize) {
+                // Calculate minute value for label
+                chrtLbl = ((i - 1 + (prevY < yOffset + 30)) * dataIntv) * -1; // change label if last data point is more than 30 lines (= seconds) from chart line
+            } else {
+                int j = 3 - i;
+                chrtLbl = (int((((numWndVals / dataIntv) - 50) * dataIntv / 60) + 1) - (j * dataIntv)) * -1; // 50 lines left below last chart line
+            }
+            getdisplay().printf("%3d", chrtLbl); // Wind value label
+        }
+
+        return PAGE_UPDATE;
+    };
+};
+
+static Page* createPage(CommonData& common)
+{
+    return new PageWindPlot(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 (0 here)
+ * and will will provide the names of the fixed values we need
+ */
+PageDescription registerPageWindPlot(
+    "WindPlot", // Page name
+    createPage, // Action
+    0, // Number of bus values depends on selection in Web configuration
+    { "TWD", "TWS" }, // Bus values we need in the page
+//    {}, // Bus values we need in the page
+    true // Show display header on/off
+);
+
+#endif

lib/obp60task/PageWindRose.cpp

@@ -48,7 +48,7 @@ public:
         String flashLED = config->getString(config->flashLED);
         String backlightMode = config->getString(config->backlight);
 
-        // Get boat values for AWA
+        // Get boat value for AWA
         GwApi::BoatValue *bvalue1 = pageData.values[0]; // First element in list (only one value by PageOneValue)
         String name1 = xdrDelete(bvalue1->getName());   // Value name
         name1 = name1.substring(0, 6);                  // String length limit for value name
@@ -63,8 +63,8 @@ public:
             unit1old = unit1;                           // Save old unit
         }
 
-        // Get boat values for AWS
-        GwApi::BoatValue *bvalue2 = pageData.values[1]; // First element in list (only one value by PageOneValue)
+        // Get boat value for AWS
+        GwApi::BoatValue *bvalue2 = pageData.values[1]; // Second element in list
         String name2 = xdrDelete(bvalue2->getName());   // Value name
         name2 = name2.substring(0, 6);                  // String length limit for value name
         calibrationData.calibrateInstance(bvalue2, logger); // Check if boat data value is to be calibrated
@@ -77,8 +77,8 @@ public:
             unit2old = unit2;                           // Save old unit
         }
 
-        // Get boat values TWD
-        GwApi::BoatValue *bvalue3 = pageData.values[2]; // Second element in list (only one value by PageOneValue)
+        // Get boat value for TWD
+        GwApi::BoatValue *bvalue3 = pageData.values[2]; // Third element in list
         String name3 = xdrDelete(bvalue3->getName());   // Value name
         name3 = name3.substring(0, 6);                  // String length limit for value name
         calibrationData.calibrateInstance(bvalue3, logger); // Check if boat data value is to be calibrated
@@ -91,9 +91,9 @@ public:
             unit3old = unit3;                           // Save old unit
         }
 
-        // Get boat values TWS
-        GwApi::BoatValue *bvalue4 = pageData.values[3]; // Second element in list (only one value by PageOneValue)
-        String name4 = xdrDelete(bvalue4->getName());      // Value name
+        // Get boat value for TWS
+        GwApi::BoatValue *bvalue4 = pageData.values[3]; // Fourth element in list
+        String name4 = xdrDelete(bvalue4->getName());   // Value name
         name4 = name4.substring(0, 6);                  // String length limit for value name
         calibrationData.calibrateInstance(bvalue4, logger); // Check if boat data value is to be calibrated
         double value4 = bvalue4->value;                 // Value as double in SI unit
@@ -105,9 +105,9 @@ public:
             unit4old = unit4;                           // Save old unit
         }
 
-        // Get boat values DBT
-        GwApi::BoatValue *bvalue5 = pageData.values[4]; // Second element in list (only one value by PageOneValue)
-        String name5 = xdrDelete(bvalue5->getName());      // Value name
+        // Get boat value for DBT
+        GwApi::BoatValue *bvalue5 = pageData.values[4]; // Fifth element in list
+        String name5 = xdrDelete(bvalue5->getName());   // Value name
         name5 = name5.substring(0, 6);                  // String length limit for value name
         calibrationData.calibrateInstance(bvalue5, logger); // Check if boat data value is to be calibrated
         double value5 = bvalue5->value;                 // Value as double in SI unit
@@ -119,9 +119,9 @@ public:
             unit5old = unit5;                           // Save old unit
         }
 
-        // Get boat values STW
-        GwApi::BoatValue *bvalue6 = pageData.values[5]; // Second element in list (only one value by PageOneValue)
-        String name6 = xdrDelete(bvalue6->getName());      // Value name
+        // Get boat value for STW
+        GwApi::BoatValue *bvalue6 = pageData.values[5]; // Sixth element in list
+        String name6 = xdrDelete(bvalue6->getName());   // Value name
         name6 = name6.substring(0, 6);                  // String length limit for value name
         calibrationData.calibrateInstance(bvalue6, logger); // Check if boat data value is to be calibrated
         double value6 = bvalue6->value;                 // Value as double in SI unit
@@ -248,7 +248,7 @@ public:
             float y = 150 - (rInstrument-30)*cos(i/180.0*pi);  //  y-coordinate cots
             const char *ii = "";
             switch (i)
-            {
+{
             case 0: ii="0"; break;
             case 30 : ii="30"; break;
             case 60 : ii="60"; break;
@@ -372,11 +372,11 @@ static Page *createPage(CommonData &common){
  * and will will provide the names of the fixed values we need
  */
 PageDescription registerPageWindRose(
-    "WindRose",         // Page name
-    createPage,         // Action
-    0,                  // Number of bus values depends on selection in Web configuration
+    "WindRose", // Page name
+    createPage, // Action
+    0,          // Number of bus values depends on selection in Web configuration
     {"AWA", "AWS", "TWD", "TWS", "DBT", "STW"},    // Bus values we need in the page
-    true                // Show display header on/off
+    true        // Show display header on/off
 );
 
 #endif

lib/obp60task/PageWindRoseFlex.cpp

@@ -48,7 +48,7 @@ public:
         String flashLED = config->getString(config->flashLED);
         String backlightMode = config->getString(config->backlight);
 
-        // Get boat values for AWA
+        // Get boat values #1
         GwApi::BoatValue *bvalue1 = pageData.values[0]; // First element in list (only one value by PageOneValue)
         String name1 = xdrDelete(bvalue1->getName());   // Value name
         name1 = name1.substring(0, 6);                  // String length limit for value name
@@ -63,8 +63,8 @@ public:
             unit1old = unit1;                           // Save old unit
         }
 
-        // Get boat values for AWS
-        GwApi::BoatValue *bvalue2 = pageData.values[1]; // First element in list (only one value by PageOneValue)
+        // Get boat values #2
+        GwApi::BoatValue *bvalue2 = pageData.values[1]; // Second element in list
         String name2 = xdrDelete(bvalue2->getName());   // Value name
         name2 = name2.substring(0, 6);                  // String length limit for value name
         calibrationData.calibrateInstance(bvalue2, logger); // Check if boat data value is to be calibrated
@@ -77,8 +77,8 @@ public:
             unit2old = unit2;                           // Save old unit
         }
 
-        // Get boat values TWD
-        GwApi::BoatValue *bvalue3 = pageData.values[2]; // Second element in list (only one value by PageOneValue)
+        // Get boat values #3
+        GwApi::BoatValue *bvalue3 = pageData.values[2]; // Third element in list
         String name3 = xdrDelete(bvalue3->getName());   // Value name
         name3 = name3.substring(0, 6);                  // String length limit for value name
         calibrationData.calibrateInstance(bvalue3, logger); // Check if boat data value is to be calibrated
@@ -91,9 +91,9 @@ public:
             unit3old = unit3;                           // Save old unit
         }
 
-        // Get boat values TWS
-        GwApi::BoatValue *bvalue4 = pageData.values[3]; // Second element in list (only one value by PageOneValue)
-        String name4 = xdrDelete(bvalue4->getName());      // Value name
+        // Get boat values #4
+        GwApi::BoatValue *bvalue4 = pageData.values[3]; // Fourth element in list
+        String name4 = xdrDelete(bvalue4->getName());   // Value name
         name4 = name4.substring(0, 6);                  // String length limit for value name
         calibrationData.calibrateInstance(bvalue4, logger); // Check if boat data value is to be calibrated
         double value4 = bvalue4->value;                 // Value as double in SI unit
@@ -105,9 +105,9 @@ public:
             unit4old = unit4;                           // Save old unit
         }
 
-        // Get boat values DBT
-        GwApi::BoatValue *bvalue5 = pageData.values[4]; // Second element in list (only one value by PageOneValue)
-        String name5 = xdrDelete(bvalue5->getName());      // Value name
+        // Get boat values #5
+        GwApi::BoatValue *bvalue5 = pageData.values[4]; // Fifth element in list
+        String name5 = xdrDelete(bvalue5->getName());   // Value name
         name5 = name5.substring(0, 6);                  // String length limit for value name
         calibrationData.calibrateInstance(bvalue5, logger); // Check if boat data value is to be calibrated
         double value5 = bvalue5->value;                 // Value as double in SI unit
@@ -119,9 +119,9 @@ public:
             unit5old = unit5;                           // Save old unit
         }
 
-        // Get boat values STW
-        GwApi::BoatValue *bvalue6 = pageData.values[5]; // Second element in list (only one value by PageOneValue)
-        String name6 = xdrDelete(bvalue6->getName());      // Value name
+        // Get boat values #5
+        GwApi::BoatValue *bvalue6 = pageData.values[5]; // Sixth element in list
+        String name6 = xdrDelete(bvalue6->getName());   // Value name
         name6 = name6.substring(0, 6);                  // String length limit for value name
         calibrationData.calibrateInstance(bvalue6, logger); // Check if boat data value is to be calibrated
         double value6 = bvalue6->value;                 // Value as double in SI unit
@@ -192,7 +192,7 @@ public:
         getdisplay().setFont(&DSEG7Classic_BoldItalic20pt7b);
         getdisplay().setCursor(295, 65);
         if(valid3 == true){
-           // getdisplay().print(abs(value3 * 180 / PI), 0);   // Value          
+           // getdisplay().print(abs(value3 * 180 / M_PI), 0); // Value
             getdisplay().print(svalue4);     // Value
         }
         else{
@@ -236,7 +236,6 @@ public:
 
         // Draw wind rose
         int rInstrument = 110;     // Radius of grafic instrument
-        float pi = 3.141592;
 
         getdisplay().fillCircle(200, 150, rInstrument + 10, commonData->fgcolor);    // Outer circle
         getdisplay().fillCircle(200, 150, rInstrument + 7, commonData->bgcolor);     // Outer circle
@@ -246,24 +245,23 @@ public:
         for(int i=0; i<360; i=i+10)
         {
             // Scaling values
-            float x = 200 + (rInstrument-30)*sin(i/180.0*pi);  //  x-coordinate dots
-            float y = 150 - (rInstrument-30)*cos(i/180.0*pi);  //  y-coordinate dots
+            float x = 200 + (rInstrument-30)*sin(i/180.0*M_PI);  //  x-coordinate dots
+            float y = 150 - (rInstrument-30)*cos(i/180.0*M_PI);  //  y-coordinate dots
             const char *ii = "";
-            switch (i)
-            {
-            case 0: ii="0"; break;
-            case 30 : ii="30"; break;
-            case 60 : ii="60"; break;
-            case 90 : ii="90"; break;
-            case 120 : ii="120"; break;
-            case 150 : ii="150"; break;
-            case 180 : ii="180"; break;
-            case 210 : ii="210"; break;
-            case 240 : ii="240"; break;
-            case 270 : ii="270"; break;
-            case 300 : ii="300"; break;
-            case 330 : ii="330"; break;
-            default: break;
+            switch (i) {
+                case 0: ii="0"; break;
+                case 30 : ii="30"; break;
+                case 60 : ii="60"; break;
+                case 90 : ii="90"; break;
+                case 120 : ii="120"; break;
+                case 150 : ii="150"; break;
+                case 180 : ii="180"; break;
+                case 210 : ii="210"; break;
+                case 240 : ii="240"; break;
+                case 270 : ii="270"; break;
+                case 300 : ii="300"; break;
+                case 330 : ii="330"; break;
+                default: break;
             }
 
             // Print text centered on position x, y
@@ -277,11 +275,11 @@ public:
             }
 
             // Draw sub scale with dots
-            float x1c = 200 + rInstrument*sin(i/180.0*pi);
-            float y1c = 150 - rInstrument*cos(i/180.0*pi);
+            float x1c = 200 + rInstrument*sin(i/180.0*M_PI);
+            float y1c = 150 - rInstrument*cos(i/180.0*M_PI);
             getdisplay().fillCircle((int)x1c, (int)y1c, 2, commonData->fgcolor);
-            float sinx=sin(i/180.0*pi);
-            float cosx=cos(i/180.0*pi); 
+            float sinx=sin(i/180.0*M_PI);
+            float cosx=cos(i/180.0*M_PI);
 
             // Draw sub scale with lines (two triangles)
             if(i % 30 == 0){
@@ -331,36 +329,26 @@ public:
 
 //*******************************************************************************************
 
-// Show value6, so that it does not collide with the wind pointer
-if ( cos(value1) > 0){ 
-    getdisplay().setFont(&DSEG7Classic_BoldItalic16pt7b);
-    getdisplay().setCursor(160, 200);
-    getdisplay().print(svalue6);                     // Value
-    getdisplay().setFont(&Ubuntu_Bold8pt8b);
-    getdisplay().setCursor(190, 215);
-    getdisplay().print(" ");
-    if(holdvalues == false){
-        getdisplay().print(unit6);                   // Unit
-    }
-    else{  
-        getdisplay().print(unit6old);                // Unit
-    } 
-    }
-    else{ 
-    getdisplay().setFont(&DSEG7Classic_BoldItalic16pt7b);
-    getdisplay().setCursor(160, 130);
-    getdisplay().print(svalue6);                     // Value
-    getdisplay().setFont(&Ubuntu_Bold8pt8b);
-    getdisplay().setCursor(190, 90);
-    getdisplay().print(" ");
-    if(holdvalues == false){
-        getdisplay().print(unit6);                   // Unit
-    }
-    else{  
-        getdisplay().print(unit6old);                // Unit
-    }
-    }
-    
+        // Show value6, so that it does not collide with the wind pointer
+        getdisplay().setFont(&DSEG7Classic_BoldItalic16pt7b);
+        if (cos(value1) > 0){
+            getdisplay().setCursor(160, 200);
+            getdisplay().print(svalue6);                     // Value
+            getdisplay().setFont(&Ubuntu_Bold8pt8b);
+            getdisplay().setCursor(190, 215);
+        } else{
+            getdisplay().setCursor(160, 130);
+            getdisplay().print(svalue6);                     // Value
+            getdisplay().setFont(&Ubuntu_Bold8pt8b);
+            getdisplay().setCursor(190, 90);
+        }
+        getdisplay().print(" ");
+        if(holdvalues == false){
+            getdisplay().print(unit6);                   // Unit
+        }
+        else{
+            getdisplay().print(unit6old);                // Unit
+        }
 
         return PAGE_UPDATE;
     };
@@ -377,11 +365,10 @@ static Page *createPage(CommonData &common){
  * and will will provide the names of the fixed values we need
  */
 PageDescription registerPageWindRoseFlex(
-    "WindRoseFlex",         // Page name
-    createPage,         // Action
-    6,                  // Number of bus values depends on selection in Web configuration; was zero
-    //{"AWA", "AWS", "COG", "SOG", "TWD", "TWS"},    // Bus values we need in the page, modified for WindRose2
-    true                // Show display header on/off
+    "WindRoseFlex", // Page name
+    createPage,     // Action
+    6,              // Number of bus values depends on selection in Web configuration; was zero
+    true            // Show display header on/off
 );
 
 #endif

lib/obp60task/PageXTETrack.cpp

@@ -223,11 +223,11 @@ static Page* createPage(CommonData &common){
  * this will be number of BoatValue pointers in pageData.values
  */
 PageDescription registerPageXTETrack(
-    "XTETrack",            // Page name
-    createPage,             // Action
-    0,                      // Number of bus values depends on selection in Web configuration
+    "XTETrack", // Page name
+    createPage, // Action
+    0,          // Number of bus values depends on selection in Web configuration
     {"XTE", "COG", "DTW", "BTW"}, // Bus values we need in the page
-    true                    // Show display header on/off
+    true        // Show display header on/off
 );
 
 #endif

lib/obp60task/Pagedata.h

@@ -4,15 +4,19 @@
 #include <functional>
 #include <vector>
 #include "LedSpiTask.h"
+#include "OBPRingBuffer.h"
+#include "OBPDataOperations.h"
 
 #define MAX_PAGE_NUMBER 10    // Max number of pages for show data
 
 typedef std::vector<GwApi::BoatValue *> ValueList;
+
 typedef struct{
   String pageName;
   uint8_t pageNumber; // page number in sequence of visible pages
   //the values will always contain the user defined values first
   ValueList values;
+  tBoatHstryData boatHstry;
 } PageData;
 
 // Sensor data structure (only for extended sensors, not for NMEA bus sensors)
@@ -193,7 +197,7 @@ typedef struct{
   double value;
   String svalue;
   String unit;
-} FormatedData;
+} FormattedData;
 
 // Formatter for boat values
-FormatedData formatValue(GwApi::BoatValue *value, CommonData &commondata);
+FormattedData formatValue(GwApi::BoatValue *value, CommonData &commondata);

lib/obp60task/config.json

@@ -219,6 +219,17 @@
             "obp60":"true"
         }
     },
+    {
+        "name": "calcTrueWnds",
+        "label": "Calculate True Wind",
+        "type": "boolean",
+        "default": "false",
+        "description": "If not available, calculate true wind data from appearant wind and other boat data",
+        "category": "OBP60 Settings",
+        "capabilities": {
+            "obp60": "true"
+        }
+    },
     {
         "name": "lengthFormat",
         "label": "Length Format",
@@ -1313,6 +1324,7 @@
             "Voltage",
             "WhitePage",
             "Wind",
+            "WindPlot",
             "WindRose",
             "WindRoseFlex",
             "XTETrack"
@@ -1593,6 +1605,7 @@
             "Voltage",
             "WhitePage",
             "Wind",
+            "WindPlot",
             "WindRose",
             "WindRoseFlex",
             "XTETrack"
@@ -1870,6 +1883,7 @@
             "Voltage",
             "WhitePage",
             "Wind",
+            "WindPlot",
             "WindRose",
             "WindRoseFlex",
             "XTETrack"
@@ -2144,6 +2158,7 @@
             "Voltage",
             "WhitePage",
             "Wind",
+            "WindPlot",
             "WindRose",
             "WindRoseFlex",
             "XTETrack"
@@ -2415,6 +2430,7 @@
             "Voltage",
             "WhitePage",
             "Wind",
+            "WindPlot",
             "WindRose",
             "WindRoseFlex",
             "XTETrack"
@@ -2683,6 +2699,7 @@
             "Voltage",
             "WhitePage",
             "Wind",
+            "WindPlot",
             "WindRose",
             "WindRoseFlex",
             "XTETrack"
@@ -2948,6 +2965,7 @@
             "Voltage",
             "WhitePage",
             "Wind",
+            "WindPlot",
             "WindRose",
             "WindRoseFlex",
             "XTETrack"
@@ -3210,6 +3228,7 @@
             "Voltage",
             "WhitePage",
             "Wind",
+            "WindPlot",
             "WindRose",
             "WindRoseFlex",
             "XTETrack"
@@ -3469,6 +3488,7 @@
             "Voltage",
             "WhitePage",
             "Wind",
+            "WindPlot",
             "WindRose",
             "WindRoseFlex",
             "XTETrack"
@@ -3725,6 +3745,7 @@
             "Voltage",
             "WhitePage",
             "Wind",
+            "WindPlot",
             "WindRose",
             "WindRoseFlex",
             "XTETrack"

lib/obp60task/config_obp40.json

@@ -219,6 +219,17 @@
             "obp40": "true"
         }
     },
+    {
+        "name": "calcTrueWnds",
+        "label": "Calculate True Wind",
+        "type": "boolean",
+        "default": "false",
+        "description": "If not available, calculate true wind data from appearant wind and other boat data",
+        "category": "OBP40 Settings",
+        "capabilities": {
+            "obp40": "true"
+        }
+    },
     {
         "name": "lengthFormat",
         "label": "Length Format",
@@ -1336,6 +1347,7 @@
             "Voltage",
             "WhitePage",
             "Wind",
+            "WindPlot",
             "WindRose",
             "WindRoseFlex",
             "XTETrack"
@@ -1616,6 +1628,7 @@
             "Voltage",
             "WhitePage",
             "Wind",
+            "WindPlot",
             "WindRose",
             "WindRoseFlex",
             "XTETrack"
@@ -1893,6 +1906,7 @@
             "Voltage",
             "WhitePage",
             "Wind",
+            "WindPlot",
             "WindRose",
             "WindRoseFlex",
             "XTETrack"
@@ -2167,6 +2181,7 @@
             "Voltage",
             "WhitePage",
             "Wind",
+            "WindPlot",
             "WindRose",
             "WindRoseFlex",
             "XTETrack"
@@ -2438,6 +2453,7 @@
             "Voltage",
             "WhitePage",
             "Wind",
+            "WindPlot",
             "WindRose",
             "WindRoseFlex",
             "XTETrack"
@@ -2706,6 +2722,7 @@
             "Voltage",
             "WhitePage",
             "Wind",
+            "WindPlot",
             "WindRose",
             "WindRoseFlex",
             "XTETrack"
@@ -2971,6 +2988,7 @@
             "Voltage",
             "WhitePage",
             "Wind",
+            "WindPlot",
             "WindRose",
             "WindRoseFlex",
             "XTETrack"
@@ -3233,6 +3251,7 @@
             "Voltage",
             "WhitePage",
             "Wind",
+            "WindPlot",
             "WindRose",
             "WindRoseFlex",
             "XTETrack"
@@ -3492,6 +3511,7 @@
             "Voltage",
             "WhitePage",
             "Wind",
+            "WindPlot",
             "WindRose",
             "WindRoseFlex",
             "XTETrack"
@@ -3748,6 +3768,7 @@
             "Voltage",
             "WhitePage",
             "Wind",
+            "WindPlot",
             "WindRose",
             "WindRoseFlex",
             "XTETrack"

lib/obp60task/gen_set.py

@@ -31,6 +31,7 @@ no_of_fields_per_page = {
     "TwoValues": 2,
     "Voltage": 0,
     "WhitePage": 0,
+    "WindPlot": 0,
     "WindRose": 0,
     "WindRoseFlex": 6,
 }

lib/obp60task/images/OBP40_400x300.xbm

@@ -1,6 +1,6 @@
 #define OBP40_400x300_width 400
 #define OBP40_400x300_height 300
-static unsigned char OBP40_400x300_bits[] PROGMEM = {
+const unsigned char OBP40_400x300_bits[15000] PROGMEM = {
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

lib/obp60task/images/OBP60_400x300.xbm

@@ -1,6 +1,6 @@
 #define OBP60_400x300_width 400
 #define OBP60_400x300_height 300
-static unsigned char OBP60_400x300_bits[] = {
+const unsigned char OBP60_400x300_bits[15000] PROGMEM = {
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

lib/obp60task/images/OBP_400x300.xbm

@@ -1,6 +1,6 @@
 #define OBP_400x300_width 400
 #define OBP_400x300_height 300
-static unsigned char OBP_400x300_bits[] = {
+const unsigned char OBP_400x300_bits[15000] PROGMEM = {
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,

lib/obp60task/obp60task.cpp

@@ -13,6 +13,8 @@
 #include "OBP60Extensions.h"            // Functions lib for extension board
 #include "OBP60Keypad.h"                // Functions for keypad
 #include "BoatDataCalibration.h"        // Functions lib for data instance calibration
+#include "OBPRingBuffer.h"              // Functions lib with ring buffer for history storage of some boat data
+#include "OBPDataOperations.h"          // Functions lib for data operations such as true wind calculation
 
 #ifdef BOARD_OBP40S3
 #include "driver/rtc_io.h"              // Needs for weakup from deep sleep
@@ -52,31 +54,13 @@ void OBP60Init(GwApi *api){
     
     // Check I2C devices
     
-
     // Init hardware
     hardwareInit(api);
 
-    // Init power rail 5.0V
+    // Init power
     String powermode = api->getConfig()->getConfigItem(api->getConfig()->powerMode,true)->asString();
     api->getLogger()->logDebug(GwLog::DEBUG,"Power Mode is: %s", powermode.c_str());
-    if(powermode == "Max Power" || powermode == "Only 5.0V"){
-        #ifdef HARDWARE_V21
-        setPortPin(OBP_POWER_50, true); // Power on 5.0V rail
-        #endif
-        #ifdef BOARD_OBP40S3
-        setPortPin(OBP_POWER_EPD, true);// Power on ePaper display
-        setPortPin(OBP_POWER_SD, true); // Power on SD card
-        #endif
-    }
-    else{
-        #ifdef HARDWARE_V21
-        setPortPin(OBP_POWER_50, false); // Power off 5.0V rail
-        #endif
-        #ifdef BOARD_OBP40S3
-        setPortPin(OBP_POWER_EPD, false);// Power off ePaper display
-        setPortPin(OBP_POWER_SD, false); // Power off SD card
-        #endif
-    }
+    powerInit(powermode);
 
     #ifdef BOARD_OBP40S3
     bool sdcard = config->getBool(config->useSDCard);
@@ -275,6 +259,8 @@ void registerAllPages(PageList &list){
     list.add(&registerPageFourValues2);
     extern PageDescription registerPageWind;
     list.add(&registerPageWind);
+    extern PageDescription registerPageWindPlot;
+    list.add(&registerPageWindPlot); 
     extern PageDescription registerPageWindRose;
     list.add(&registerPageWindRose);
     extern PageDescription registerPageWindRoseFlex;
@@ -372,6 +358,124 @@ void underVoltageDetection(GwApi *api, CommonData &common){
     }
 }
 
+//bool addTrueWind(GwApi* api, BoatValueList* boatValues, double *twd, double *tws, double *twa) {
+bool addTrueWind(GwApi* api, BoatValueList* boatValues) {
+    // Calculate true wind data and add to obp60task boat data list
+
+    double awaVal, awsVal, cogVal, stwVal, sogVal, hdtVal, hdmVal, varVal;
+    double twd, tws, twa;
+    bool isCalculated = false;
+    const double DBL_MIN = std::numeric_limits<double>::lowest();
+
+    GwApi::BoatValue *twdBVal = boatValues->findValueOrCreate("TWD");
+    GwApi::BoatValue *twsBVal = boatValues->findValueOrCreate("TWS");
+    GwApi::BoatValue *twaBVal = boatValues->findValueOrCreate("TWA");
+    GwApi::BoatValue *awaBVal = boatValues->findValueOrCreate("AWA");
+    GwApi::BoatValue *awsBVal = boatValues->findValueOrCreate("AWS");
+    GwApi::BoatValue *cogBVal = boatValues->findValueOrCreate("COG");
+    GwApi::BoatValue *stwBVal = boatValues->findValueOrCreate("STW");
+    GwApi::BoatValue *sogBVal = boatValues->findValueOrCreate("SOG");
+    GwApi::BoatValue *hdtBVal = boatValues->findValueOrCreate("HDT");
+    GwApi::BoatValue *hdmBVal = boatValues->findValueOrCreate("HDM");
+    GwApi::BoatValue *varBVal = boatValues->findValueOrCreate("VAR");
+    awaVal = awaBVal->valid ? awaBVal->value : DBL_MIN;
+    awsVal = awsBVal->valid ? awsBVal->value : DBL_MIN;
+    cogVal = cogBVal->valid ? cogBVal->value : DBL_MIN;
+    stwVal = stwBVal->valid ? stwBVal->value : DBL_MIN;
+    sogVal = sogBVal->valid ? sogBVal->value : DBL_MIN;
+    hdtVal = hdtBVal->valid ? hdtBVal->value : DBL_MIN;
+    hdmVal = hdmBVal->valid ? hdmBVal->value : DBL_MIN;
+    varVal = varBVal->valid ? varBVal->value : DBL_MIN;
+    api->getLogger()->logDebug(GwLog::DEBUG,"obp60task addTrueWind: AWA %.1f, AWS %.1f, COG %.1f, STW %.1f, SOG %.1f, HDT %.1f, HDM %.1f, VAR %.1f", awaBVal->value * RAD_TO_DEG, awsBVal->value * 3.6 / 1.852,
+            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);
+
+    isCalculated = WindUtils::calcTrueWind(&awaVal, &awsVal, &cogVal, &stwVal, &sogVal, &hdtVal, &hdmVal, &varVal, &twd, &tws, &twa);
+
+    if (isCalculated) { // Replace values only, if successfully calculated and not already available
+        if (!twdBVal->valid) {
+            twdBVal->value = twd;
+            twdBVal->valid = true;
+        }
+        if (!twsBVal->valid) {
+            twsBVal->value = tws;
+            twsBVal->valid = true;
+        }
+        if (!twaBVal->valid) {
+            twaBVal->value = twa;
+            twaBVal->valid = true;
+        }
+    }
+    api->getLogger()->logDebug(GwLog::DEBUG,"obp60task addTrueWind: TWD_Valid %d, isCalculated %d, TWD %.1f, TWA %.1f, TWS %.1f", twdBVal->valid, isCalculated, twdBVal->value * RAD_TO_DEG,
+        twaBVal->value * RAD_TO_DEG, twsBVal->value * 3.6 / 1.852);
+
+    return isCalculated;
+}
+
+void initHstryBuf(GwApi* api, BoatValueList* boatValues, tBoatHstryData hstryBufList) {
+    // Init history buffers for TWD, TWS
+
+    GwApi::BoatValue *calBVal; // temp variable just for data calibration -> we don't want to calibrate the original data here
+
+    int hstryUpdFreq = 1000; // Update frequency for history buffers in ms
+    int hstryMinVal = 0; // Minimum value for these history buffers
+    int twdHstryMax = 6283; // Max value for wind direction (TWD) in rad (0...2*PI), shifted by 1000 for 3 decimals
+    int twsHstryMax = 1000; // Max value for wind speed (TWS) in m/s, shifted by 10 for 1 decimal
+    // Initialize history buffers with meta data
+    hstryBufList.twdHstry->setMetaData("TWD", "formatCourse", hstryUpdFreq, hstryMinVal, twdHstryMax);
+    hstryBufList.twsHstry->setMetaData("TWS", "formatKnots", hstryUpdFreq, hstryMinVal, twsHstryMax);
+
+    GwApi::BoatValue *twdBVal = boatValues->findValueOrCreate(hstryBufList.twdHstry->getName());
+    GwApi::BoatValue *twsBVal = boatValues->findValueOrCreate(hstryBufList.twsHstry->getName());
+    GwApi::BoatValue *twaBVal = boatValues->findValueOrCreate("TWA");
+}
+
+void handleHstryBuf(GwApi* api, BoatValueList* boatValues, tBoatHstryData hstryBufList) {
+    // Handle history buffers for TWD, TWS
+
+    GwLog *logger = api->getLogger();
+
+    int16_t twdHstryMin = hstryBufList.twdHstry->getMinVal();
+    int16_t twdHstryMax = hstryBufList.twdHstry->getMaxVal();
+    int16_t twsHstryMin = hstryBufList.twsHstry->getMinVal();
+    int16_t twsHstryMax = hstryBufList.twsHstry->getMaxVal();
+    int16_t twdBuf, twsBuf;
+    GwApi::BoatValue *calBVal; // temp variable just for data calibration -> we don't want to calibrate the original data here
+
+    GwApi::BoatValue *twdBVal = boatValues->findValueOrCreate(hstryBufList.twdHstry->getName());
+    GwApi::BoatValue *twsBVal = boatValues->findValueOrCreate(hstryBufList.twsHstry->getName());
+    GwApi::BoatValue *twaBVal = boatValues->findValueOrCreate("TWA");
+
+    api->getLogger()->logDebug(GwLog::DEBUG,"obp60task handleHstryBuf: twdBVal: %.1f, twaBVal: %.1f, twsBVal: %.1f, TWD_isValid? %d", twdBVal->value * RAD_TO_DEG,
+        twaBVal->value * RAD_TO_DEG, twsBVal->value * 3.6 / 1.852, twdBVal->valid);
+    calBVal = new GwApi::BoatValue("TWD"); // temporary solution for calibration of history buffer values
+    calBVal->setFormat(twdBVal->getFormat());
+    if (twdBVal->valid) {
+        calBVal->value = twdBVal->value;
+        calBVal->valid = twdBVal->valid;
+        calibrationData.calibrateInstance(calBVal, logger); // Check if boat data value is to be calibrated
+        twdBuf = static_cast<int16_t>(std::round(calBVal->value * 1000));
+        if (twdBuf >= twdHstryMin && twdBuf <= twdHstryMax) {
+            hstryBufList.twdHstry->add(twdBuf);
+        }
+    }
+    delete calBVal;
+    calBVal = nullptr;
+
+    calBVal = new GwApi::BoatValue("TWS"); // temporary solution for calibration of history buffer values
+    calBVal->setFormat(twsBVal->getFormat());
+    if (twsBVal->valid) {
+        calBVal->value = twsBVal->value;
+        calBVal->valid = twsBVal->valid;
+        calibrationData.calibrateInstance(calBVal, logger); // Check if boat data value is to be calibrated
+        twsBuf = static_cast<int16_t>(std::round(calBVal->value * 10));
+        if (twsBuf >= twsHstryMin && twsBuf <= twsHstryMax) {
+            hstryBufList.twsHstry->add(twsBuf);
+        }
+    }
+    delete calBVal;
+    calBVal = nullptr;
+}
+
 // OBP60 Task
 //####################################################################################
 void OBP60Task(GwApi *api){
@@ -485,6 +589,11 @@ void OBP60Task(GwApi *api){
     //commonData.distanceformat=config->getString(xxx);
     //add all necessary data to common data
 
+    // Create ring buffers for history storage of some boat data
+    RingBuffer<int16_t> twdHstry(960); // Circular buffer to store wind direction values; store 960 TWD values for 16 minutes history
+    RingBuffer<int16_t> twsHstry(960); // Circular buffer to store wind speed values (TWS)
+    tBoatHstryData hstryBufList = {&twdHstry, &twsHstry};
+
     //fill the page data from config
     numPages=config->getInt(config->visiblePages,1);
     if (numPages < 1) numPages=1;
@@ -523,6 +632,10 @@ void OBP60Task(GwApi *api){
             LOG_DEBUG(GwLog::DEBUG,"added fixed value %s to page %d",value->getName().c_str(),i);
             pages[i].parameters.values.push_back(value); 
        }
+        if (pages[i].description->pageName == "WindPlot") {
+            // Add boat history data to page parameters
+            pages[i].parameters.boatHstry = hstryBufList;
+        }
     }
     // add out of band system page (always available)
     Page *syspage = allPages.pages[0]->creator(commonData);
@@ -530,6 +643,13 @@ void OBP60Task(GwApi *api){
     // Read all calibration data settings from config
     calibrationData.readConfig(config, logger);
 
+    // Check user setting for true wind calculation
+    bool calcTrueWnds = api->getConfig()->getBool(api->getConfig()->calcTrueWnds, false);
+    // bool simulation = api->getConfig()->getBool(api->getConfig()->useSimuData, false);
+
+    // Initialize history buffer for certain boat data
+    initHstryBuf(api, &boatValues, hstryBufList);
+
     // Display screenshot handler for HTTP request
     // http://192.168.15.1/api/user/OBP60Task/screenshot
     api->registerRequestHandler("screenshot", [api, &pageNumber, pages](AsyncWebServerRequest *request) {
@@ -832,6 +952,12 @@ void OBP60Task(GwApi *api){
                 api->getBoatDataValues(boatValues.numValues,boatValues.allBoatValues);
                 api->getStatus(commonData.status);
 
+                if (calcTrueWnds) {
+                    addTrueWind(api, &boatValues);
+                }
+                // Handle history buffers for TWD, TWS for wind plot page and other usage
+                 handleHstryBuf(api, &boatValues, hstryBufList);
+
                 // Clear display
                 // getdisplay().fillRect(0, 0, getdisplay().width(), getdisplay().height(), commonData.bgcolor);
                 getdisplay().fillScreen(commonData.bgcolor);  // Clear display

lib/obp60task/platformio.ini

@@ -43,16 +43,17 @@ lib_deps =
     adafruit/Adafruit FRAM I2C@2.0.3
 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 (seral device)
+#    -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 DISPLAY_GDEW042T2            #old E-Ink display from Waveshare, R10 0.47 ohm
-    -D DISPLAY_GDEY042T81           #new E-Ink display from Waveshare, R10 2.2 ohm
-#    -D DISPLAY_GYE042A87            #alternativ E-Ink display from Genyo Optical, R10 2.2 ohm
-#    -D DISPLAY_SE0420NQ04           #alternativ E-Ink display from SID Technology, R10 2.2 ohm
+#    -D DISPLAY_GDEW042T2            #old E-Ink display from GoodDisplay (Waveshare), R10 0.47 ohm - very good
+    -D DISPLAY_GDEY042T81           #new E-Ink display from GoodDisplay (Waveshare), R10 2.2 ohm - good (contast lost by shunshine)
+#    -D DISPLAY_GYE042A87            #alternativ E-Ink display from Genyo Optical, R10 2.2 ohm - medium 
+#    -D DISPLAY_SE0420NQ04           #alternativ E-Ink display from SID Technology, R10 2.2 ohm - bad (burn in effects)
+#    -D DISPLAY_ZJY400300-042CAAMFGN #alternativ E-Ink display from ZZE Technology, R10 2.2 ohm - very good
     ${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
@@ -96,7 +97,8 @@ build_flags=
     -D DISABLE_DIAGNOSTIC_OUTPUT    #Disable diagnostic output for GxEPD2 lib
     -D BOARD_OBP40S3                #Board OBP40 with ESP32S3
     -D HARDWARE_V10                 #OBP40 hardware revision V1.0 SKU:DIE07300S V1.1 (CrowPanel 4.2)
-    -D DISPLAY_GDEY042T81           #new E-Ink display from Waveshare, R10 2.2 ohm
+    -D DISPLAY_GDEY042T81           #new E-Ink display from Good Display (Waveshare), R10 2.2 ohm - good (contast lost by shunshine)
+    #-D DISPLAY_ZJY400300-042CAAMFGN #alternativ E-Ink display from ZZE Technology, R10 2.2 ohm - very good   
     #-D LIPO_ACCU_1200               #Hardware extension, LiPo accu 3,7V 1200mAh
     #-D VOLTAGE_SENSOR               #Hardware extension, LiPo voltage sensor with two resistors
     ${env.build_flags}