Instructions

25/06/2015 DFRduinoBeginnerKitForArduinoV3SKU:DFR0100RobotWiki
http://www.dfrobot.com/wiki/index.php/DFRduino_Beginner_Kit_For_Arduino_V3_SKU:DFR0100 5/23
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pinMode(carYellow,OUTPUT);
pinMode(carGreen,OUTPUT);
pinMode(pedRed,OUTPUT);
pinMode(pedGreen,OUTPUT);
pinMode(button,INPUT);
digitalWrite(carGreen,HIGH);//turnonthegreenlights
digitalWrite(pedRed,HIGH);
}

voidloop(){
intstate=digitalRead(button);
//checkifbuttonispressedanditisover5secondssincelastbuttonpress
if(state==HIGH&&(millis()‐changeTime)>5000){
//callthefunctiontochangethelights
changeLights();
}
}

voidchangeLights(){
digitalWrite(carGreen,LOW);//greenoff
digitalWrite(carYellow,HIGH);//yellowon
delay(2000);//wait2seconds

digitalWrite(carYellow,LOW);//yellowoff
digitalWrite(carRed,HIGH);//redon
delay(1000);//wait1secondtillitssafe

digitalWrite(pedRed,LOW);//pedredoff
digitalWrite(pedGreen,HIGH);//pedgreenon

delay(crossTime);//waitforpresettimeperiod

//flashthepedgreen
for(intx=0;x<10;x++){
digitalWrite(pedGreen,HIGH);
delay(250);
digitalWrite(pedGreen,LOW);
delay(250);
}

digitalWrite(pedRed,HIGH);//turnpedredon
delay(500);

digitalWrite(carRed,LOW);//redoff
digitalWrite(carYellow,HIGH);//yellowon