RGB 测试

功能

ReSpeaker Lite 板上的 RGB 灯使用 WS2812 芯片，通过 GPIO1 引脚控制。该项目循环显示不同的颜色（红色、绿色、蓝色和白色），以确保 RGB 灯正常工作。

代码

#include <Adafruit_NeoPixel.h>

// Define parameters for the LED strip
#define PIN 1            // Pin connected to the RGB LED
#define NUMPIXELS 1      // Number of LEDs

Adafruit_NeoPixel strip(NUMPIXELS, PIN, NEO_GRB + NEO_KHZ800);  // Initialize the LED strip object

void setup() {
  // Initialize the serial monitor for debugging
  Serial.begin(115200);
  
  // Initialize the RGB LED strip
  strip.begin();
  strip.show();  // Initialize all pixels to the off state
}

void loop() {
  // Red color test
  Serial.println("Red color test");
  strip.setPixelColor(0, strip.Color(255, 0, 0));  // Set the first pixel to red
  strip.show();  // Update the strip display
  delay(1000);   // Delay for 1 second

  // Green color test
  Serial.println("Green color test");
  strip.setPixelColor(0, strip.Color(0, 255, 0));  // Set the first pixel to green
  strip.show();
  delay(1000);

  // Blue color test
  Serial.println("Blue color test");
  strip.setPixelColor(0, strip.Color(0, 0, 255));  // Set the first pixel to blue
  strip.show();
  delay(1000);

  // White color test
  Serial.println("White color test");
  strip.setPixelColor(0, strip.Color(255, 255, 255));  // Set the first pixel to white
  strip.show();
  delay(1000);

  // Turn off the LED
  Serial.println("Turn off the LED");
  strip.setPixelColor(0, strip.Color(0, 0, 0));  // Turn off the first pixel
  strip.show();
  delay(1000);
}

配置

strip.setPixelColor：设置灯带中 LED 的颜色。

strip.show：将颜色变化应用到 LED。