Add support for SeeedStudio's XIAO ESP32-S3 Wio-SX1262 Header

variants/esp32s3/diy/seeed_xiao_esp32s3_diy_header/pins_arduino.h

@@ -0,0 +1,21 @@
+#ifndef Pins_Arduino_h
+#define Pins_Arduino_h
+
+#include <stdint.h>
+
+#define USB_VID 0x2886
+#define USB_PID 0x0059
+
+// GPIO48 Reference: https://github.com/espressif/arduino-esp32/pull/8600
+
+// The default Wire will be mapped to Screen and Sensors
+static const uint8_t SDA = 47;
+static const uint8_t SCL = 48;
+
+// Default SPI will be mapped to Radio
+static const uint8_t MISO = 8;
+static const uint8_t SCK = 7;
+static const uint8_t MOSI = 9;
+static const uint8_t SS = 5;
+
+#endif /* Pins_Arduino_h */

variants/esp32s3/diy/seeed_xiao_esp32s3_diy_header/platformio.ini

@@ -0,0 +1,24 @@
+[env:seeed-xiao-s3-diy-header]
+extends = esp32s3_base
+board = seeed_xiao_esp32s3
+framework = arduino
+upload_protocol = esptool
+upload_speed = 921600
+
+board_build.partitions = default_8MB.csv
+board_build.flash_mode = dio
+board_build.flash_size = 8MB
+
+build_unflags =
+  ${esp32s3_base.build_unflags}
+  -DARDUINO_USB_MODE=1
+
+build_flags =
+  ${esp32s3_base.build_flags}
+  -D PRIVATE_HW
+  -D BOARD_HAS_PSRAM
+  -D ARDUINO_USB_MODE=0
+  -I variants/esp32s3/diy/seeed_xiao_esp32s3_diy_header
+
+lib_deps =
+  ${esp32s3_base.lib_deps}

variants/esp32s3/diy/seeed_xiao_esp32s3_diy_header/variant.h

@@ -0,0 +1,61 @@
+/*
+Board Information: https://www.seeedstudio.com/XIAO-ESP32S3-p-5627.html
+Expansion Board Infomation : https://www.seeedstudio.com/Wio-SX1262-for-XIAO-p-6379.html
+L76K GPS Module Information : https://www.seeedstudio.com/L76K-GNSS-Module-for-Seeed-Studio-XIAO-p-5864.html
+*/
+
+#define LED_PIN 48
+#define LED_STATE_ON 1 // State when LED is lit
+
+#define BUTTON_PIN 21 // This is the Program Button
+#define BUTTON_NEED_PULLUP
+
+#define BATTERY_PIN -1
+#define ADC_CHANNEL ADC1_GPIO1_CHANNEL
+#define BATTERY_SENSE_RESOLUTION_BITS 12
+
+/*Warning:
+    https://www.seeedstudio.com/L76K-GNSS-Module-for-Seeed-Studio-XIAO-p-5864.html
+    L76K Expansion Board can not directly used, L76K Reset Pin needs to override or physically remove it,
+    otherwise it will conflict with the SPI pins
+*/
+#define GPS_L76K
+#ifdef GPS_L76K
+#define GPS_RX_PIN 44
+#define GPS_TX_PIN 43
+#define HAS_GPS 1
+#define GPS_BAUDRATE 9600
+#define GPS_THREAD_INTERVAL 50
+#define PIN_SERIAL1_RX PIN_GPS_TX
+#define PIN_SERIAL1_TX PIN_GPS_RX
+#define PIN_GPS_STANDBY 1
+#endif
+
+#define I2C_SDA 5
+#define I2C_SCL 6
+
+// XIAO S3 LORA module
+#define USE_SX1262
+
+#define LORA_MISO 8
+#define LORA_SCK 7
+#define LORA_MOSI 9
+#define LORA_CS 5
+
+#define LORA_RESET 3
+#define LORA_DIO1 2
+
+#define LORA_DIO2 6
+
+#ifdef USE_SX1262
+#define SX126X_CS LORA_CS
+#define SX126X_DIO1 LORA_DIO1
+#define SX126X_BUSY 4
+#define SX126X_RESET LORA_RESET
+
+//  DIO2 controlls an antenna switch and the TCXO voltage is controlled by DIO3
+#define SX126X_DIO2_AS_RF_SWITCH
+#define SX126X_RXEN 6
+#define SX126X_TXEN RADIOLIB_NC
+#define SX126X_DIO3_TCXO_VOLTAGE 1.8
+#endif