Traffic Light Project

Basic Requirements For Two Coordinated Sets Of Red, Yellow, Green Lights

• NS green light turns on for 35 seconds
• EW red light turns on for 40 seconds
• NS green light turns off and NS yellow light turns on for 3 seconds
• NS yellow light turns off and NS red light turns on for 40 seconds
• EW red light turns off after staying on with the NS red right for 2 seconds
• EW green light turns on for 35 seconds
• EW green light turns off and EW yellow light turns on for 3 seconds
• EW yellow light turns off and EW red light turns on for 40 seconds
• NS red light turns off after staying on with the EW red light for 2 seconds
• Repeat

/* Traffic Lights
Cory and Jaeho
2017-05-04
*/

int ledR = 8; //NS red light 
int ledY = 9; //NS yellow ligh
int ledG = 10; //NS green light
int ledR2 = 11; //EW red light
int ledY2 = 12; //EW yellow light
int ledG2 = 13; //EW green light

void setup() {
 pinMode (ledR, OUTPUT);
 pinMode (ledY, OUTPUT);
 pinMode (ledG, OUTPUT);
 pinMode (ledR2, OUTPUT);
 pinMode (ledY2, OUTPUT);
 pinMode (ledG2, OUTPUT);    
}

void loop() {  
  digitalWrite(ledR2, HIGH); //turns EW red light on
  digitalWrite(ledG, HIGH); //turns NS green light on
  delay(10000); //keep NS green light and EW red light on for 10 seconds
  digitalWrite(ledG, LOW); //turns NS green light off
  digitalWrite(ledY, HIGH); //turns NS yellow light on
  delay(3000); //keep NS yellow light and EW red light on for 3 seconds
  digitalWrite(ledY, LOW); //turn off NS yellow light
  digitalWrite(ledR, HIGH); //turn on NS red light
  delay(2000);//keep NS red light and EW red light on for 3 seconds
  digitalWrite(ledR2, LOW); //turn off EW red light
  digitalWrite(ledG2, HIGH); //turn EW green light on
  delay(10000);//keep NS red light and EW green light on for 10 seconds
  digitalWrite(ledG2, LOW); //turn EW green light off
  digitalWrite(ledY2, HIGH); //turn EW yellow light on
  delay(3000);//keep NS red light and EW yellow light on for 3 seconds
  digitalWrite(ledY2, LOW); //turn EW yellow light off 
  digitalWrite(ledR2, HIGH); //turns EW red light on
  delay(2000);//keep NS red light and EW red light on for 3 seconds
  digitalWrite(ledR, LOW); //turns NS red light off
}