arduino#呼吸灯

int ledPin = ;    // 使用引脚号

void setup() {
  // nothing happens in setup
}

void loop() {
  // fade in from min to max in increments of 5 points:
  for (int fadeValue =  ; fadeValue <= ; fadeValue += ) {
    // sets the value (range from 0 to 255):
    analogWrite(ledPin, fadeValue);
    // wait for 30 milliseconds to see the dimming effect
    delay();
  }

  // fade out from max to min in increments of 5 points:
  for (int fadeValue =  ; fadeValue >= ; fadeValue -= ) {
    // sets the value (range from 0 to 255):
    analogWrite(ledPin, fadeValue);
    // wait for 30 milliseconds to see the dimming effect
    delay();
  }
}