// project 2 - Traffict Light Arduino
int ledDelay = 500; //delay in between changes
int redPin = 10;
int yellowPin = 9;
int greenPin = 8;

void setup() {
  pinMode(redPin, OUTPUT);
  pinMode(yellowPin, OUTPUT);
  pinMode(greenPin, OUTPUT);
}

void loop(){
  digitalWrite(redPin, HIGH); //turn the red light on
  delay(ledDelay); // wait 5 seconds

  digitalWrite(yellowPin, HIGH); //turn on yellow
  delay(2000); // wait 5 seconds


  digitalWrite(greenPin, HIGH); // turn green on
  digitalWrite(redPin, LOW); // turn red off
  digitalWrite(yellowPin, LOW); // turn yellow off
  delay(ledDelay); // wait ledDelay millsecond

  digitalWrite(yellowPin, HIGH); // turn yellow on
  digitalWrite(greenPin, LOW); // turn green off
  delay(2000); // wait 2 seconds

 
 digitalWrite(yellowPin, LOW); // turn yellow off

// now our loop repeats
}