#define red 1
#define yellow 2
#define green 3
#define button 4
#define pir 5
#define ldr 6

void setup() {
  // put your setup code here, to run once:
  pinMode(button, INPUT);
  pinMode(pir, INPUT);
  pinMode(ldr, INPUT);
  pinMode(red, OUTPUT);
  pinMode(yellow, OUTPUT);
  pinMode(green, OUTPUT);
}

void loop() {
  // put your main code here, to run repeatedly:
  int pb = digitalRead(button);
  switch (pb){
    case 1:
      digitalWrite(red, HIGH);
      break;
    default:
      digitalWrite(red, LOW);
      break;
  }

  int pirOutput = digitalRead(pir);
  switch (pirOutput){
    case 1 :
      digitalWrite(green, HIGH);
      break;
    default :
      digitalWrite(green, LOW);
      break;
  }

  int ldrOutput = digitalRead(ldr);
  switch (ldrOutput){
    case 1 :
      digitalWrite(yellow, HIGH);
      break;
    default :
      digitalWrite(yellow, LOW);
      break;
  }
}