Add Cellmonitor to webserver

Software/Software.ino

@@ -67,6 +67,7 @@ uint8_t bms_status = ACTIVE;            // ACTIVE - [0..5]<>[STANDBY,INACTIVE,DA
 uint16_t stat_batt_power = 0;           // Power going in/out of battery
 uint16_t cell_max_voltage = 3700;       // Stores the highest cell voltage value in the system
 uint16_t cell_min_voltage = 3700;       // Stores the minimum cell voltage value in the system
+uint16_t cellvoltages[120];         // Stores all cell voltages
 bool LFP_Chemistry = false;
 
 // Common charger parameters

Software/src/battery/NISSAN-LEAF-BATTERY.cpp

@@ -239,6 +239,11 @@ void update_values_leaf_battery() { /* This function maps all the values fetched
     max_target_charge_power = 0;  //No need to charge further, set max power to 0
   }
 
+  //Map all cell voltages to the global array
+  for (int i = 0; i < 97; ++i) {
+    cellvoltages[i] = cell_voltages[i];
+  }
+
   /*Extra safety functions below*/
   if (LB_GIDS < 10)  //800Wh left in battery
   {                  //Battery is running abnormally low, some discharge logic might have failed. Zero it all out.

Software/src/battery/NISSAN-LEAF-BATTERY.h

@@ -26,6 +26,7 @@ extern uint16_t temperature_max;   //C+1,  Goes thru convert2unsignedint16 funct
 extern uint16_t cell_max_voltage;  //mV,   0-4350
 extern uint16_t cell_min_voltage;  //mV,   0-4350
 extern uint8_t LEDcolor;           //Enum, 0-10
+extern uint16_t cellvoltages[120]; //mV 0-5000 per cell
 extern bool batteryAllowsContactorClosing;  //Bool, 1=true, 0=false
 
 void update_values_leaf_battery();

Software/src/battery/TEST-FAKE-BATTERY.cpp

@@ -33,9 +33,9 @@ void update_values_test_battery() { /* This function puts fake values onto the p
 
   remaining_capacity_Wh = 15000;  // 15kWh
 
-  cell_max_voltage = 3750;
+  cell_max_voltage = 3596;
 
-  cell_min_voltage = 3730;
+  cell_min_voltage = 3500;
 
   stat_batt_power = 0;  // 0W
 
@@ -47,6 +47,10 @@ void update_values_test_battery() { /* This function puts fake values onto the p
 
   max_target_charge_power = 5000;  // 5kW
   
+  for (int i = 0; i < 97; ++i) {
+    cellvoltages[i] = 3500+i;
+  }
+
 /*Finally print out values to serial if configured to do so*/
 #ifdef DEBUG_VIA_USB
   Serial.println("FAKE Values going to inverter");

Software/src/battery/TEST-FAKE-BATTERY.h

@@ -25,6 +25,7 @@ extern uint16_t temperature_min;   //C+1,  Goes thru convert2unsignedint16 funct
 extern uint16_t temperature_max;   //C+1,  Goes thru convert2unsignedint16 function (15.0C = 150, -15.0C =  65385)
 extern uint16_t cell_max_voltage;  //mV,   0-4350
 extern uint16_t cell_min_voltage;  //mV,   0-4350
+extern uint16_t cellvoltages[120]; //mV 0-5000 per cell
 extern bool batteryAllowsContactorClosing;   //Bool, 1=true, 0=false
 extern bool inverterAllowsContactorClosing;  //Bool, 1=true, 0=false
 extern uint8_t LEDcolor;                     //Enum, 0-10

Software/src/devboard/webserver/webserver.cpp

@@ -60,6 +60,10 @@ void init_webserver() {
   server.on("/settings", HTTP_GET,
             [](AsyncWebServerRequest* request) { request->send_P(200, "text/html", index_html, settings_processor); });
 
+  // Route for going to cellmonitor web page
+  server.on("/cellmonitor", HTTP_GET,
+            [](AsyncWebServerRequest* request) { request->send_P(200, "text/html", index_html, cellmonitor_processor); });
+
   // Route for editing Wh
   server.on("/updateBatterySize", HTTP_GET, [](AsyncWebServerRequest* request) {
     if (request->hasParam("value")) {
@@ -547,11 +551,14 @@ String processor(const String& var) {
 
     content += "<button onclick='goToUpdatePage()'>Perform OTA update</button>";
     content += " ";
-    content += "<button onclick='goToSettingsPage()'>Change Battery Settings</button>";
+    content += "<button onclick='goToSettingsPage()'>Change Settings</button>";
+    content += " ";
+    content += "<button onclick='goToCellmonitorPage()'>Cellmonitor</button>";
     content += " ";
     content += "<button onclick='promptToReboot()'>Reboot Emulator</button>";
     content += "<script>";
     content += "function goToUpdatePage() { window.location.href = '/update'; }";
+    content += "function goToCellmonitorPage() { window.location.href = '/cellmonitor'; }";
     content += "function goToSettingsPage() { window.location.href = '/settings'; }";
     content +=
         "function promptToReboot() { if (window.confirm('Are you sure you want to reboot the emulator? NOTE: If "
@@ -810,6 +817,64 @@ String settings_processor(const String& var) {
   return String();
 }
 
+String cellmonitor_processor(const String& var) {
+  if (var == "PLACEHOLDER") {
+    String content = "";
+    // Page format
+    content += "<style>";
+    content += "body { background-color: black; color: white; }";
+    content += ".container { display: flex; flex-wrap: wrap; justify-content: space-around; }";
+    content += ".cell { width: 48%; margin: 1%; padding: 10px; border: 1px solid white; text-align: center; }";
+    content += ".low-voltage { color: red; }"; // Style for low voltage text
+    content += ".voltage-values { margin-bottom: 10px; }"; // Style for voltage values section
+    content += "</style>";
+
+    // Start a new block with a specific background color
+    content += "<div style='background-color: #303E47; padding: 10px; margin-bottom: 10px; border-radius: 50px'>";
+
+    // Display max, min, and deviation voltage values
+    content += "<div class='voltage-values'>";
+    content += "Max Voltage: " + String(cell_max_voltage) + " mV<br>";
+    content += "Min Voltage: " + String(cell_min_voltage) + " mV<br>";
+    int deviation = cell_max_voltage - cell_min_voltage;
+    content += "Voltage Deviation: " + String(deviation) + " mV";
+    content += "</div>";
+
+    // Visualize the populated cells in forward order using flexbox with conditional text color
+    content += "<div class='container'>";
+    for (int i = 0; i < 120; ++i) {
+      // Skip empty values
+      if (cellvoltages[i] == 0) {
+        continue;
+      }
+
+      String cellContent = "Cell " + String(i + 1) + "<br>" + String(cellvoltages[i]) + " mV";
+
+      // Check if the cell voltage is below 3000, apply red color
+      if (cellvoltages[i] < 3000) {
+        cellContent = "<span class='low-voltage'>" + cellContent + "</span>";
+      }
+
+      content += "<div class='cell'>" + cellContent + "</div>";
+    }
+    content += "</div>";
+
+    // Close the block
+    content += "</div>";
+
+    content += "<button onclick='goToMainPage()'>Back to main page</button>";
+    content += "<script>";
+    content += "function goToMainPage() { window.location.href = '/'; }";
+    content += "</script>";
+    return content;
+  }
+  return String();
+}
+
+
+
+
+
 void onOTAStart() {
   // Log when OTA has started
   Serial.println("OTA update started!");

Software/src/devboard/webserver/webserver.h

@@ -25,6 +25,7 @@ extern uint16_t temperature_min;   //C+1,  Goes thru convert2unsignedint16 funct
 extern uint16_t temperature_max;   //C+1,  Goes thru convert2unsignedint16 function (15.0C = 150, -15.0C =  65385)
 extern uint16_t cell_max_voltage;  //mV,   0-4350
 extern uint16_t cell_min_voltage;  //mV,   0-4350
+extern uint16_t cellvoltages[120]; //mV 0-5000 per cell
 extern uint8_t LEDcolor;           //Enum, 0-10
 extern bool batteryAllowsContactorClosing;   //Bool, 1=true, 0=false
 extern bool inverterAllowsContactorClosing;  //Bool, 1=true, 0=false
@@ -98,6 +99,15 @@ String processor(const String& var);
  */
 String settings_processor(const String& var);
 
+/**
+ * @brief Replaces placeholder with content section in web page
+ *
+ * @param[in] var
+ *
+ * @return String
+ */
+String cellmonitor_processor(const String& var);
+
 /**
  * @brief Executes on OTA start 
  *