Initial configuration.h -> variants refactor (#1104)

* Initial configuration to variants refactor

src/DebugConfiguration.h

@@ -0,0 +1,61 @@
+// DEBUG LED
+#ifndef LED_INVERTED
+#define LED_INVERTED 0 // define as 1 if LED is active low (on)
+#endif
+
+// -----------------------------------------------------------------------------
+// DEBUG
+// -----------------------------------------------------------------------------
+
+#ifdef CONSOLE_MAX_BAUD
+#define SERIAL_BAUD CONSOLE_MAX_BAUD
+#else
+#define SERIAL_BAUD 921600 // Serial debug baud rate
+#endif
+
+#include "SerialConsole.h"
+
+#define DEBUG_PORT (*console) // Serial debug port
+
+// What platforms should use SEGGER?
+#ifdef NRF52_SERIES
+
+// Always include the SEGGER code on NRF52 - because useful for debugging
+#include "SEGGER_RTT.h"
+
+// The channel we send stdout data to
+#define SEGGER_STDOUT_CH 0
+
+// Debug printing to segger console
+#define SEGGER_MSG(...) SEGGER_RTT_printf(SEGGER_STDOUT_CH, __VA_ARGS__)
+
+// If we are not on a NRF52840 (which has built in USB-ACM serial support) and we don't have serial pins hooked up, then we MUST
+// use SEGGER for debug output
+#if !defined(PIN_SERIAL_RX) && !defined(NRF52840_XXAA)
+// No serial ports on this board - ONLY use segger in memory console
+#define USE_SEGGER
+#endif
+
+#else
+#define SERIAL0_RX_GPIO 3 // Always GPIO3 on ESP32
+#endif
+
+#ifdef USE_SEGGER
+#define DEBUG_MSG(...) SEGGER_RTT_printf(0, __VA_ARGS__)
+#else
+#ifdef DEBUG_PORT
+#define DEBUG_MSG(...) DEBUG_PORT.logDebug(__VA_ARGS__)
+#else
+#define DEBUG_MSG(...)
+#endif
+#endif
+
+// -----------------------------------------------------------------------------
+// AXP192 (Rev1-specific options)
+// -----------------------------------------------------------------------------
+
+#define GPS_POWER_CTRL_CH 3
+#define LORA_POWER_CTRL_CH 2
+
+// Default Bluetooth PIN
+#define defaultBLEPin 123456