Introduction: LED Traffic Light
這是一個有閃黃燈的LED紅綠燈
Supplies
紅黃綠LED燈各一個
usb傳輸線一條
Arduino麵包板
100歐姆電阻三個
電線數條
Step 1: 原作者網址
原網址: 網址
這是一個模擬紅綠燈的Arduino裝置
Step 2: 按原網址接上電路
接上電路後，將原網址提供的程式碼複製，貼到Arduino 程式上。
Step 3: 打開Arduino修改程式碼
修改後程式如下網址
我將綠燈的時間縮短，並把黃燈改成了閃黃燈。
int red = 10;
int yellow = 9;
int green = 8;
void setup() {
pinMode(red, OUTPUT);
pinMode(yellow, OUTPUT);
pinMode(green, OUTPUT);
}
void loop(){
changeLights();
delay(1500);//改時間縮短
}
void changeLights(){
// green off, yellow on for 3 seconds
digitalWrite(green, LOW);
digitalWrite(yellow, HIGH);
delay(3000);
// turn off yellow, then turn red on for 5 seconds
digitalWrite(yellow, LOW);
digitalWrite(red, HIGH);
delay(5000);
// red and yellow on for 2 seconds (red is already on though)
digitalWrite(yellow, HIGH);//改 黃燈閃爍
delay(400);//改
digitalWrite(yellow, LOW);//改 黃燈閃爍
delay(400);//改
digitalWrite(yellow, HIGH);//改黃燈閃爍
delay(400);//改
digitalWrite(yellow, LOW);//改黃燈閃爍
delay(400);//改
digitalWrite(yellow, HIGH);//改黃燈閃爍
delay(400);//改
// turn off red and yellow, then turn on green
digitalWrite(yellow, LOW);
digitalWrite(red, LOW);
digitalWrite(green, HIGH);
delay(1000); }//改
Step 4: 上傳程式碼
上傳程式碼到Arduino 裝置上
