4-3.ARDUINO C 程式學習篇-呼吸燈

 4-3.ARDUINO C 程式學習篇-呼吸燈

4-3.Arduino 外接 LED 接在 D13 腳位，每 0.5 秒閃爍一次,採用呼吸燈」的完整程式碼與電路說明(圖1)

const int ledPin = 13; // LED 接在 D13
void setup() {
  pinMode(ledPin, OUTPUT);
}
void loop() {
  for (int brightness = 0; brightness <= 255; brightness++) {
    analogWrite(ledPin, brightness);
    delay(2);  // 增亮延遲
  }
  for (int brightness = 255; brightness >= 0; brightness--) {
    analogWrite(ledPin, brightness);
    delay(2);  // 變暗延遲
  }
}