/*Mohammed Ali , Student ID: 300370238
First code to try and validate all the individual components connected 
arduino uno. Component list as follows:

Button_a - Pin 2
Button_b - Pin 12
Button_c - Pin 8
Button_d - Pin 7

Amber LED - Pin5
Blue LED - Pin6
Green LED - Pin10
Red LED - Pin9

Servo PWM - Pin 11 
*/
void setup() {
  // put your setup code here, to run once:
  //setup all the digital  input pins from the pushbuttons
  pinMode(2, INPUT); // Button_a (Red)
  pinMode(12, INPUT);// Button_b (Green)
  pinMode(8, INPUT); // Button_c (Blue)
  pinMode(7, INPUT); //Button_d (Amber)
  
  //Setup all the output pins from the LEDs
  pinMode(5, OUTPUT);// LED Amber
  pinMode(6,OUTPUT); // LED Blue
  pinMode(9, OUTPUT); // LED Red
  pinMode(10, OUTPUT); // LED Green
}

void loop() {
  // put your main code here, to run repeatedly:
  //Turn off all the LEDs

  digitalWrite(5, HIGH); // High turns it off, Amber turns off
  digitalWrite(6, HIGH); //Turns off Blue
  digitalWrite(9, HIGH); //Turns off Red
  digitalWrite(10,HIGH); //Turns off Green
  while(digitalRead(8))
 {
   digitalWrite(6, LOW);// turn on blue LED for 200ms
   delay(200);

   //turn off Blue LEd and keep it off
   digitalWrite(6, HIGH);
   delay(150);
 }
}