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fix(arduino_pins): fixes Lolin-C3-Pico and C3-Mini RGB LED pin + C3-Pico SPI SCK pin definition #11186

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merged 2 commits into from
Mar 27, 2025
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fix(arduino_pins): fixes Lolin-C3-Pico and C3-Mini RGB LED pin + C3-Pico SPI SCK pin definition #11186

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5aeb02b
fix(arduino_pins): fixes RGB LED pin and SPI SCK pin definition
SuGlider Mar 27, 2025
95eeb03
fix(arduino_pins): lolin-c3-mini rgb led pin
SuGlider Mar 27, 2025
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10 changes: 9 additions & 1 deletion variants/lolin_c3_mini/pins_arduino.h
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Original file line number Diff line number Diff line change
Expand Up @@ -2,10 +2,18 @@
#define Pins_Arduino_h

#include <stdint.h>
#include "soc/soc_caps.h"

static const uint8_t LED_BUILTIN = 7;
// based on https://www.wemos.cc/en/latest/c3/c3_mini.html
// WS2812 RGB LED on pin 7
#define PIN_RGB_LED 7
// BUILTIN_LED can be used in new Arduino API digitalWrite() like in Blink.ino
static const uint8_t LED_BUILTIN = SOC_GPIO_PIN_COUNT + PIN_RGB_LED;
#define BUILTIN_LED LED_BUILTIN // backward compatibility
#define LED_BUILTIN LED_BUILTIN // allow testing #ifdef LED_BUILTIN
// RGB_BUILTIN and RGB_BRIGHTNESS can be used in new Arduino API rgbLedWrite()
#define RGB_BUILTIN LED_BUILTIN
#define RGB_BRIGHTNESS 64

static const uint8_t TX = 21;
static const uint8_t RX = 20;
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12 changes: 10 additions & 2 deletions variants/lolin_c3_pico/pins_arduino.h
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Original file line number Diff line number Diff line change
Expand Up @@ -4,10 +4,18 @@
#define Pins_Arduino_h

#include <stdint.h>
#include "soc/soc_caps.h"

static const uint8_t LED_BUILTIN = 7;
// based on https://www.wemos.cc/en/latest/c3/c3_pico.html
// WS2812 RGB LED on pin 7
#define PIN_RGB_LED 7
// BUILTIN_LED can be used in new Arduino API digitalWrite() like in Blink.ino
static const uint8_t LED_BUILTIN = SOC_GPIO_PIN_COUNT + PIN_RGB_LED;
#define BUILTIN_LED LED_BUILTIN // backward compatibility
#define LED_BUILTIN LED_BUILTIN // allow testing #ifdef LED_BUILTIN
// RGB_BUILTIN and RGB_BRIGHTNESS can be used in new Arduino API rgbLedWrite()
#define RGB_BUILTIN LED_BUILTIN
#define RGB_BRIGHTNESS 64

static const uint8_t TX = 21;
static const uint8_t RX = 20;
Expand All @@ -17,7 +25,7 @@ static const uint8_t SCL = 10;

static const uint8_t VBAT = 3;

static const uint8_t SCK = 2;
static const uint8_t SCK = 1;
static const uint8_t MISO = 0;
static const uint8_t MOSI = 4;
static const uint8_t SS = 5;
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