Add Pylontech battery to device pin manager

include/PinMapping.h

@@ -31,6 +31,8 @@ struct PinMapping_t {
     uint8_t display_reset;
     uint8_t victron_tx;
     uint8_t victron_rx;
+    uint8_t battery_rx;
+    uint8_t battery_tx;
 };
 
 class PinMappingClass {
@@ -42,9 +44,10 @@ public:
     bool isValidNrf24Config();
     bool isValidEthConfig();
     bool isValidVictronConfig();
+    bool isValidBatteryConfig();
 
 private:
     PinMapping_t _pinMapping;
 };
 
-extern PinMappingClass PinMapping;
+extern PinMappingClass PinMapping;

include/PylontechCanReceiver.h

@@ -17,7 +17,8 @@
 
 class PylontechCanReceiverClass {
 public:
-    void init();
+    void init(int8_t rx, int8_t tx);
+    void enable();
     void loop();
     void parseCanPackets();
     void mqtt();

src/PinMapping.cpp

@@ -64,6 +64,8 @@ PinMappingClass::PinMappingClass()
     _pinMapping.victron_tx = VICTRON_PIN_TX;
     _pinMapping.victron_rx = VICTRON_PIN_RX;
 
+    _pinMapping.battery_rx = PYLONTECH_PIN_RX;
+    _pinMapping.battery_tx = PYLONTECH_PIN_TX;
 }
 
 PinMapping_t& PinMappingClass::get()
@@ -119,6 +121,9 @@ bool PinMappingClass::init(const String& deviceMapping)
             _pinMapping.victron_rx = doc[i]["victron"]["rx"] | VICTRON_PIN_RX;
             _pinMapping.victron_tx = doc[i]["victron"]["tx"] | VICTRON_PIN_TX;
 
+            _pinMapping.battery_rx = doc[i]["battery"]["rx"] | PYLONTECH_PIN_RX;
+            _pinMapping.battery_tx = doc[i]["battery"]["tx"] | PYLONTECH_PIN_TX;
+
             return true;
         }
     }
@@ -145,4 +150,10 @@ bool PinMappingClass::isValidVictronConfig()
 {
     return _pinMapping.victron_rx > 0
         && _pinMapping.victron_tx > 0;
-}
+}
+
+bool PinMappingClass::isValidBatteryConfig()
+{
+    return _pinMapping.battery_rx > 0
+        && _pinMapping.battery_tx > 0;
+}

src/PylontechCanReceiver.cpp

@@ -9,16 +9,21 @@
 
 PylontechCanReceiverClass PylontechCanReceiver;
 
-void PylontechCanReceiverClass::init()
+void PylontechCanReceiverClass::init(int8_t rx, int8_t tx)
 {
+    CAN.setPins(rx, tx);
+
     CONFIG_T& config = Configuration.get();
 
     if (!config.Battery_Enabled) {
         return;
     }
-  
-    CAN.setPins(PYLONTECH_PIN_RX, PYLONTECH_PIN_TX);
 
+    enable();
+}
+
+void PylontechCanReceiverClass::enable()
+{
     if (!CAN.begin(500E3)) {
         Hoymiles.getMessageOutput()->println("Starting CAN failed!");
     }

src/WebApi_battery.cpp

@@ -108,6 +108,6 @@ void WebApiBatteryClass::onAdminPost(AsyncWebServerRequest* request)
     request->send(response);
 
     if (config.Battery_Enabled) {
-        PylontechCanReceiver.init();
+        PylontechCanReceiver.enable();
     }
 }

src/WebApi_device.cpp

@@ -73,6 +73,10 @@ void WebApiDeviceClass::onDeviceAdminGet(AsyncWebServerRequest* request)
     victronPinObj[F("rx")] = pin.victron_rx;
     victronPinObj[F("tx")] = pin.victron_tx;
 
+    JsonObject batteryPinObj = curPin.createNestedObject("battery");
+    batteryPinObj[F("rx")] = pin.battery_rx;
+    batteryPinObj[F("tx")] = pin.battery_tx;
+
     response->setLength();
     request->send(response);
 }

src/main.cpp

@@ -149,8 +149,15 @@ void setup()
     // Dynamic power limiter
     PowerLimiter.init();
 
-    // Pylontech / CAN bus
-    PylontechCanReceiver.init();
+    // Initialize Pylontech Battery / CAN bus
+    MessageOutput.println(F("Initialize Pylontech battery interface... "));
+    if (PinMapping.isValidBatteryConfig()) {
+        MessageOutput.printf("Pylontech Battery rx = %d, tx = %d\r\n", pin.battery_rx, pin.battery_tx);
+        PylontechCanReceiver.init(pin.battery_rx, pin.battery_tx);
+        MessageOutput.println(F("done"));
+    } else {
+        MessageOutput.println(F("Invalid pin config"));
+    }
 }
 
 void loop()