I'm quite new to Arduino and the programming of the board, but I wanted to have a go at making a traffic light based on an example I found online.

The example supplied a simple layout which I roughly copied with the components I had.

I then created the following code to mimic the traffic lights of my local area.

int red = 13; int yellow = 12; int green = 11;

void setup(){ pinMode(red,OUTPUT); pinMode(yellow,OUTPUT);
pinMode(green,OUTPUT); }

void loop(){ changeLights();

}

void changeLights(){ // red on, other off for 3 seconds digitalWrite(green,LOW); digitalWrite(yellow,LOW); digitalWrite(red,HIGH); delay(3000);

// red on, amber on,green off for 3 seconds digitalWrite(green,LOW); digitalWrite(yellow,HIGH); digitalWrite(red,HIGH); delay(3000);

// red off, amber off,green on for 3 seconds digitalWrite(green,HIGH); digitalWrite(yellow,LOW); digitalWrite(red,LOW); delay(3000);

// red off, amber on,green on for 3 seconds digitalWrite(green,HIGH); digitalWrite(yellow,HIGH); digitalWrite(red,LOW); delay(3000);

}

What I'm wanting to achieve next is a button which resets the code back to the top of void changeLights. I assume I would be able to do this using a push-to-make switch, but I'm not sure how to incorporate it into my circuit or if it is even possible to reset using this.