Add MY_RS485_SOH_COUNT option (#1014)

MyConfig.h

@@ -225,6 +225,15 @@
 #define MY_RS485_MAX_MESSAGE_LENGTH (40)
 #endif
 
+/**
+ * @def MY_RS485_SOH_COUNT
+ * @brief Use this in case of collisions on the bus. 3 might be a good setting.
+ */
+#ifndef MY_RS485_SOH_COUNT
+#define MY_RS485_SOH_COUNT (1)
+#endif
+
+
 /**
  * @def MY_RS485_DE_PIN
  * @brief RS485 driver enable pin.

hal/transport/MyTransportRS485.cpp

@@ -266,7 +266,7 @@ bool transportSend(const uint8_t to, const void* data, const uint8_t len, const
 #endif
 
 	// Start of header by writing multiple SOH
-	for(byte w=0; w<1; w++) {
+	for(byte w=0; w<MY_RS485_SOH_COUNT; w++) {
 		_dev.write(SOH);
 	}
 	_dev.write(to);  // Destination address

keywords.txt

@@ -177,6 +177,7 @@ MY_RS485_BAUD_RATE	LITERAL1
 MY_RS485_MAX_MESSAGE_LENGTH	LITERAL1
 MY_RS485_HWSERIAL	LITERAL1
 MY_RS485_DE_PIN	LITERAL1
+MY_RS485_SOH_COUNT	LITERAL1
 
 # Gateway / MQTT
 MY_GATEWAY_SERIAL	LITERAL1