This repository contains Arduino code for controlling the built-in RGB LED on the ESP32-C6 microcontroller. It provides a simple and flexible way to manage LED colors.
The built-in RGB LED on the ESP32-C6 is connected to GPIO 8
. This is already configured in the code, but it's crucial to know if you're working with other components or modifying the pin configuration.
- Easy control of the built-in RGB LED on GPIO 8
- Predefined color constants for common colors
- Simple function to set any RGB color
- Easily expandable to include more colors and patterns
- Arduino IDE
- ESP32 board support for Arduino IDE
- Adafruit NeoPixel library
- Install the Arduino IDE from arduino.cc
- Add ESP32 board support to Arduino IDE:
- Open Arduino IDE
- Go to File > Preferences
- Add the following URL to "Additional Boards Manager URLs":
https://raw.githubusercontent.com/espressif/arduino-esp32/gh-pages/package_esp32_index.json
- Go to Tools > Board > Boards Manager
- Search for "esp32" and install the latest version
- Install the Adafruit NeoPixel library:
- Go to Sketch > Include Library > Manage Libraries
- Search for "Adafruit NeoPixel"
- Install the latest version
...
- The
LED_PIN
is set to8
for the built-in LED. Do not change this unless you're using an external LED. - Add new color definitions in the
RGB
struct format - Create new light patterns by combining
setColor()
function with different delays - Modify the
BLINK_DURATION
to change the speed of the blinking pattern - Create new light patterns by combining setColor() and blinkColor() function
...
- Download the
esp32_c6_rgb_led_control.ino
file - Open the
.ino
file in Arduino IDE - Select your ESP32-C6 board from Tools > Board menu
- Select the appropriate port from Tools > Port menu
- Click the Upload button to flash the code to your ESP32-C6
Here's the basic code structure:
#include <Adafruit_NeoPixel.h>
constexpr uint8_t LED_PIN = 8;
constexpr uint8_t NUM_LEDS = 1;
Adafruit_NeoPixel rgbLed(NUM_LEDS, LED_PIN, NEO_GRB + NEO_KHZ800);
struct RGB {
uint8_t r, g, b;
};
constexpr RGB COLOR_OFF = {0, 0, 0};
// ...Feel free to add more colors here...
constexpr RGB CUSTOM_COLOR = {255, 0, 255};
void setup() {
rgbLed.begin();
rgbLed.show();
}
void setColor(const RGB& color) {
rgbLed.setPixelColor(0, rgbLed.Color(color.r, color.g, color.b));
rgbLed.show();
}
void loop() {
setColor(CUSTOM_COLOR);
delay(500);
setColor(COLOR_OFF);
delay(500);
}
Contributions to improve the code or add new features are welcome. Please feel free to submit a pull request or open an issue.