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New extra variant: Xiao ESP32c3 #9228

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33 changes: 33 additions & 0 deletions variants/esp32c3/seeed_xiao_c3/pins_arduino.h
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#ifndef Pins_Arduino_h
#define Pins_Arduino_h

#include <stdint.h>

static const uint8_t TX = 21;
static const uint8_t RX = 20;

static const uint8_t SDA = 6;
static const uint8_t SCL = 7;

static const uint8_t SS = 20;
static const uint8_t MOSI = 10;
static const uint8_t MISO = 9;
static const uint8_t SCK = 8;

static const uint8_t A0 = 2;
static const uint8_t A1 = 3;
static const uint8_t A2 = 4;

static const uint8_t D0 = 2;
static const uint8_t D1 = 3;
static const uint8_t D2 = 4;
static const uint8_t D3 = 5;
static const uint8_t D4 = 6;
static const uint8_t D5 = 7;
static const uint8_t D6 = 21;
static const uint8_t D7 = 20;
static const uint8_t D8 = 8;
static const uint8_t D9 = 9;
static const uint8_t D10 = 10;

#endif /* Pins_Arduino_h */
22 changes: 22 additions & 0 deletions variants/esp32c3/seeed_xiao_c3/platformio.ini
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[seeed-xiao-c3_base]
extends = esp32c3_base
board = seeed_xiao_esp32c3
board_level = extra
build_flags =
${esp32c3_base.build_flags}
-D PRIVATE_HW
-I variants/esp32c3/seeed_xiao_c3

[env:seeed-xiao-c3_loraS3]
# Radio from https://wiki.seeedstudio.com/wio_sx1262_with_xiao_esp32s3_kit/#hardware-overview
extends = seeed-xiao-c3_base
build_flags =
${seeed-xiao-c3_base.build_flags}
-D XIAO_C3_loraS3

[env:seeed-xiao-c3_loraNRF52]
# Radio from https://wiki.seeedstudio.com/xiao_nrf52840&_wio_SX1262_kit_for_meshtastic/#pinout
extends = seeed-xiao-c3_base
build_flags =
${seeed-xiao-c3_base.build_flags}
-D XIAO_C3_loraNRF52
50 changes: 50 additions & 0 deletions variants/esp32c3/seeed_xiao_c3/variant.h
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// Seeed Xiao ESP32c3 variant
//
// This MCU is not bundled with a LoRa radio.
// Instead, it includes definitions for the radio included with the "ESP32-S3 LoRa" kit,
// and the radio included with the "Xiao nRF52840 LoRa" kit.

// #define BUTTON_PIN 9 // TODO (this varies based on the radio 'hat')
// #define LED_PIN 2 // TODO
// #define LED_STATE_ON 1

#define HAS_SCREEN 0
#define HAS_GPS 0
#undef GPS_RX_PIN
#undef GPS_TX_PIN

#define USE_SX1262

// https://files.seeedstudio.com/wiki/XIAO_ESP32S3_for_Meshtastic_LoRa/10.png
#ifdef XIAO_C3_loraS3
#define LORA_MOSI 10
#define LORA_MISO 9
#define LORA_SCK 8
#define LORA_DIO1 2
#define LORA_BUSY 3
#define LORA_RESET 4
#define LORA_CS 5
#define LORA_DIO2 6
#endif

// https://media-cdn.seeedstudio.com/media/wysiwyg/upload/image_Wio-SX1262_-1.png
#ifdef XIAO_C3_loraNRF52
#define LORA_MOSI 10
#define LORA_MISO 9
#define LORA_SCK 8
#define LORA_DIO1 3
#define LORA_BUSY 5
#define LORA_RESET 4
#define LORA_CS 6
#define LORA_DIO2 7
#endif

#define LORA_DIO0 RADIOLIB_NC
#define SX126X_CS LORA_CS
#define SX126X_DIO1 LORA_DIO1
#define SX126X_BUSY LORA_BUSY
#define SX126X_RESET LORA_RESET
#define SX126X_DIO2_AS_RF_SWITCH
#define SX126X_RXEN LORA_DIO2
#define SX126X_TXEN RADIOLIB_NC
#define SX126X_DIO3_TCXO_VOLTAGE 1.8
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