mix mos and bms balance temps

Author: zjwhitehead

inc/sp140/structs.h

@@ -103,11 +103,13 @@ typedef struct {
   TelemetryState bmsState;        // Current connection state
   float cell_voltages[BMS_CELLS_NUM];  // Individual cell voltages
 
-  // Individual temperature sensors (T1-T4 cell temperatures)
-  float t1_temperature;         // T1 cell temperature sensor (°C)
-  float t2_temperature;         // T2 cell temperature sensor (°C)
-  float t3_temperature;         // T3 cell temperature sensor (°C)
-  float t4_temperature;         // T4 cell temperature sensor (°C)
+  // Individual temperature sensors
+  float mos_temperature;        // BMS MOSFET temperature (°C) - index 0
+  float balance_temperature;    // BMS balance resistor temperature (°C) - index 1
+  float t1_temperature;         // T1 cell temperature sensor (°C) - index 2
+  float t2_temperature;         // T2 cell temperature sensor (°C) - index 3
+  float t3_temperature;         // T3 cell temperature sensor (°C) - index 4
+  float t4_temperature;         // T4 cell temperature sensor (°C) - index 5
 } STR_BMS_TELEMETRY_140;
 #pragma pack(pop)
 

src/sp140/bms.cpp

@@ -59,10 +59,12 @@ void updateBMSData() {
   }
 
   // Populate individual temperature sensors
-  bmsTelemetryData.t1_temperature = bms_can->getTemperature(0);
-  bmsTelemetryData.t2_temperature = bms_can->getTemperature(1);
-  bmsTelemetryData.t3_temperature = bms_can->getTemperature(2);
-  bmsTelemetryData.t4_temperature = bms_can->getTemperature(3);
+  bmsTelemetryData.mos_temperature = bms_can->getTemperature(0);      // BMS MOSFET
+  bmsTelemetryData.balance_temperature = bms_can->getTemperature(1);  // BMS Balance resistors
+  bmsTelemetryData.t1_temperature = bms_can->getTemperature(2);       // Cell probe 1
+  bmsTelemetryData.t2_temperature = bms_can->getTemperature(3);       // Cell probe 2
+  bmsTelemetryData.t3_temperature = bms_can->getTemperature(4);       // Cell probe 3
+  bmsTelemetryData.t4_temperature = bms_can->getTemperature(5);       // Cell probe 4
 
   bmsTelemetryData.lastUpdateMs = millis();
   // printBMSData();

src/sp140/simple_monitor.cpp

@@ -64,6 +64,24 @@ void addESCMonitors() {
 }
 
 void addBMSMonitors() {
+  // BMS MOSFET Temperature (Warning: 50°C, Critical: 60°C)
+  static SensorMonitor* bmsMosTemp = new SensorMonitor(
+    "BMS_MOS_Temp",
+    {.warnLow = -10, .warnHigh = 50, .critLow = -15, .critHigh = 60},
+    []() { return bmsTelemetryData.mos_temperature; },
+    &serialLogger
+  );
+  sensors.push_back(bmsMosTemp);
+
+  // BMS Balance Resistor Temperature (Warning: 50°C, Critical: 60°C)
+  static SensorMonitor* bmsBalanceTemp = new SensorMonitor(
+    "BMS_Balance_Temp",
+    {.warnLow = -10, .warnHigh = 50, .critLow = -15, .critHigh = 60},
+    []() { return bmsTelemetryData.balance_temperature; },
+    &serialLogger
+  );
+  sensors.push_back(bmsBalanceTemp);
+
   // T1-T4 Cell Temperature Sensors (Warning: 50°C, Critical: 56°C)
   static SensorMonitor* bmsT1Temp = new SensorMonitor(
     "BMS_T1_Temp",