Define button behaviour and use all of the device flash

variants/esp32s3/ELECROW-ThinkNode-M7/platformio.ini

@@ -1,7 +1,6 @@
 [env:thinknode_m7]
 extends = esp32s3_base
-board = ESP32-S3-WROOM-1-N4
-board_build.psram_type = opi
+board = ThinkNode-M7
 
 build_flags = 
   ${esp32s3_base.build_flags}

variants/esp32s3/ELECROW-ThinkNode-M7/rfswitch.h

@@ -3,9 +3,9 @@
 static const uint32_t rfswitch_dio_pins[] = {RADIOLIB_LR11X0_DIO5, RADIOLIB_LR11X0_DIO6, RADIOLIB_NC, RADIOLIB_NC, RADIOLIB_NC};
 
 static const Module::RfSwitchMode_t rfswitch_table[] = {
-
+    // mode                  DIO5  DIO6
     {LR11x0::MODE_STBY, {LOW, LOW}},  {LR11x0::MODE_RX, {HIGH, LOW}},
-    {LR11x0::MODE_TX, {LOW, HIGH}},   {LR11x0::MODE_TX_HP, {LOW, LOW}},
+    {LR11x0::MODE_TX, {HIGH, HIGH}},  {LR11x0::MODE_TX_HP, {LOW, HIGH}},
     {LR11x0::MODE_TX_HF, {LOW, LOW}}, {LR11x0::MODE_GNSS, {LOW, LOW}},
     {LR11x0::MODE_WIFI, {LOW, LOW}},  END_OF_MODE_TABLE,
 };

variants/esp32s3/ELECROW-ThinkNode-M7/variant.h

@@ -1,13 +1,19 @@
 #define HAS_GPS 0
 #define HAS_WIRE 0
+#define HAS_SCREEN 0
 #define I2C_NO_RESCAN
 
+#define UART_TX 43
+#define UART_RX 44
+
 #define WIFI_LED 3
 #define WIFI_STATE_ON 0
 
 #define LED_PIN 46
 #define LED_STATE_ON 0
 #define BUTTON_PIN 4
+#define BUTTON_ACTIVE_LOW true
+#define BUTTON_ACTIVE_PULLUP true
 
 #define LORA_SCK 11
 #define LORA_MISO 9