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/**

* 文件: 3LED-test.ino

* 作者: 零知

* 时间: 2019/05/27 20:03

* 说明:

**/

#define LED_G 1

#define LED_Y 2

#define LED_R 3

// the setup routine runs once when you press reset:

void setup() {

// put your setup code here, to run once:

pinMode(LED_G, OUTPUT);

pinMode(LED_Y, OUTPUT);

pinMode(LED_R, OUTPUT);

}

// the loop routine runs over and over again forever:

void loop() {

// put your main code here, to run repeatedly:

digitalWrite(LED_G, LOW);////点亮 绿灯

delay(5000);//延时5秒

digitalWrite(LED_G, HIGH); //熄灭 绿灯

for(int i=0;i<3;i++)//闪烁交替三次，黄灯闪烁效果

{

delay(500);//延时0.5 秒

digitalWrite(LED_Y, LOW);//点亮 黄灯

delay(500);//延时0.5 秒

digitalWrite(LED_Y, HIGH);//熄灭 黄灯

}

delay(500);//延时0.5 秒

digitalWrite(LED_R, LOW);//点亮 红灯

delay(5000);//延时5 秒

digitalWrite(LED_R, HIGH);//熄灭 红灯

}