Improved multiplatform support

Config.h

@@ -13,20 +13,24 @@
 	#define MCU_2560  0x92
 	#define MCU_ESP32 0x81
 
+	#define BOARD_RNODE 0x31
+	#define BOARD_HMBRW 0x32
+	#define BOARD_TBEAM 0x33
+
 	#define MODE_HOST 0x11
 	#define MODE_TNC  0x12
 
 	#if defined(__AVR_ATmega1284P__)
-		#define PLATFORM PLATFORM_AVR
+	    #define PLATFORM PLATFORM_AVR
-		#define MCU_VARIANT MCU_1284P
+	    #define MCU_VARIANT MCU_1284P
 	#elif defined(__AVR_ATmega2560__)
-		#define PLATFORM PLATFORM_AVR
+	    #define PLATFORM PLATFORM_AVR
-		#define MCU_VARIANT MCU_2560
+	    #define MCU_VARIANT MCU_2560
 	#elif defined(ESP32)
-		#define PLATFORM PLATFORM_ESP32
+	    #define PLATFORM PLATFORM_ESP32
-		#define MCU_VARIANT MCU_ESP32
+	    #define MCU_VARIANT MCU_ESP32
 	#else
-		#error "The firmware cannot be compiled for the selected MCU variant"
+	    #error "The firmware cannot be compiled for the selected MCU variant"
 	#endif
 
 	#define MTU   	   500
@@ -45,6 +49,8 @@
 		const int pin_led_rx = 12;
 		const int pin_led_tx = 13;
 
+		#define BOARD_MODEL BOARD_RNODE
+
 		#define CONFIG_UART_BUFFER_SIZE 6144
 		#define CONFIG_QUEUE_SIZE 6144
 		#define CONFIG_QUEUE_MAX_LENGTH 250
@@ -59,6 +65,8 @@
 		const int pin_led_rx = 12;
 		const int pin_led_tx = 13;
 
+		#define BOARD_MODEL BOARD_HMBRW
+
 		#define CONFIG_UART_BUFFER_SIZE 2048
 		#define CONFIG_QUEUE_SIZE 2048
 		#define CONFIG_QUEUE_MAX_LENGTH 80
@@ -73,7 +81,9 @@
 		const int pin_led_rx = 2;
 		const int pin_led_tx = 4;
 
-		#define CONFIG_UART_BUFFER_SIZE 6144
+		#define BOARD_MODEL BOARD_TBEAM
+
+		#define CONFIG_UART_BUFFER_SIZE 64
 		#define CONFIG_QUEUE_SIZE 6144
 		#define CONFIG_QUEUE_MAX_LENGTH 250
 
@@ -85,6 +95,12 @@
 		#define PIN_GPS_RX 34
 	#endif
 
+	#if BOARD_MODEL == BOARD_TBEAM
+		#define I2C_SDA                     21
+		#define I2C_SCL                     22
+		#define PMU_IRQ                     35
+	#endif
+
 	#define eeprom_addr(a) (a+EEPROM_OFFSET)
 
 	// MCU independent configuration parameters
@@ -117,8 +133,8 @@
 	int		last_rssi		= -292;
 	uint8_t last_rssi_raw   = 0x00;
 	uint8_t last_snr_raw	= 0x00;
-	size_t	read_len		= 0;
 	uint8_t seq				= 0xFF;
+	uint16_t read_len		= 0;
 
 	// Incoming packet buffer
 	uint8_t pbuf[MTU];