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Arduino 上手教程

2. 设备开发 & 案例程序

6. 应用案例

Fire RGB LED

Fire RGB LED 相关 API 与案例程序。

案例程序

编译要求

  • M5Stack 板管理版本 >= 3.2.2
  • 开发板选项 = M5Fire
  • M5Unified 库版本 >= 0.2.8
  • M5GFX 库版本 >= 0.2.11
  • Adafruit NeoPixel 库版本 >= 1.15.1
cpp
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#include <M5Unified.h>
#include <Adafruit_NeoPixel.h>

#define LED_PIN 15
#define NUM_LEDS 10

Adafruit_NeoPixel strip(NUM_LEDS, LED_PIN, NEO_GRB + NEO_KHZ800);

void setup() {
  auto cfg = M5.config();
  M5.begin(cfg);
  M5.Display.setTextDatum(middle_center);
  M5.Display.setTextFont(&fonts::Orbitron_Light_24);
  M5.Display.setTextSize(1);
  M5.Display.drawString("RGB LED Test", M5.Display.width() / 2, M5.Display.height() / 2);
  strip.begin();
  strip.show();
}

void loop() {
  // Red
  for (char i = 0; i <= NUM_LEDS; i++) { strip.setPixelColor(i, strip.Color(255, 0, 0)); }
  strip.show();
  delay(500);

  // Green
  for (char i = 0; i <= NUM_LEDS; i++) { strip.setPixelColor(i, strip.Color(0, 255, 0)); }
  strip.show();
  delay(500);

  // Blue
  for (char i = 0; i <= NUM_LEDS; i++) { strip.setPixelColor(i, strip.Color(0, 0, 255)); }
  strip.show();
  delay(500);

  // Yellow
  for (char i = 0; i <= NUM_LEDS; i++) { strip.setPixelColor(i, strip.Color(255, 255, 0)); }
  strip.show();
  delay(500);

  // Magenta
  for (char i = 0; i <= NUM_LEDS; i++) { strip.setPixelColor(i, strip.Color(255, 0, 255)); }
  strip.show();
  delay(500);

  // Cyan
  for (char i = 0; i <= NUM_LEDS; i++) { strip.setPixelColor(i, strip.Color(0, 255, 255)); }
  strip.show();
  delay(500);

  // White (all on)
  for (char i = 0; i <= NUM_LEDS; i++) { strip.setPixelColor(i, strip.Color(255, 255, 255)); }
  strip.show();
  delay(500);

  // Black (all off)
  for (char i = 0; i <= NUM_LEDS; i++) { strip.setPixelColor(i, strip.Color(0, 0, 0)); }
  strip.show();
  delay(500);
}

运行效果:

API

Fire RGB LED 部分使用了Adafruit NeoPixel库,更多相关的 API 可以参考下方文档:

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