作者：bf1996 | 更新時間：2019-06-05 | 瀏覽量：780
手機端控制繼電器有很高延遲 ，比如說控制繼電器開關時，繼電器沒有反應，手機上要連續按幾下才有反應？？？
void setup() {
// initialize digital pin 13 as an output.
pinMode(5, OUTPUT);
pinMode(4, OUTPUT);
}
// the loop function runs over and over again forever
void loop() {
digitalWrite(5, HIGH); // turn the LED on (HIGH is the voltage level)
delay(1000); // wait for a second
digitalWrite(5, LOW); // turn the LED off by making the voltage LOW
delay(1000); // wait for a second
digitalWrite(4, HIGH);
delay(1000);
digitalWrite(4, LOW);
delay(1000);
}