//Set the rgb, ldr and buzzer variable
int buzzer = 12;
int rgbred = 10;
int rgbblue = 9;
int rgbgreen = 8;

int ldr = A4;
int threshold = 100;

void setup(){
  pinMode(buzzer, OUTPUT);
  pinMode(rgbred, OUTPUT);
  pinMode(rgbblue, OUTPUT);
  pinMode(rgbgreen, OUTPUT);
  pinMode(ldr, INPUT);
  Serial.begin(9600);
}

void loop(){
  //We will use variable sensorpin to save ldr pin value
  int sensorpin = analogRead(ldr);
  if(sensorpin <= threshold){
    digitalWrite(rgbred, HIGH);
    digitalWrite(rgbgreen,LOW);
    digitalWrite(rgbblue,LOW);
    tone(buzzer,800);
    delay(300);
    digitalWrite(rgbred,LOW);
    digitalWrite(rgbblue,HIGH);
    digitalWrite(rgbgreen,LOW);
    tone(buzzer,1500);
    delay(300);
    Serial.println("----------ALARM ACTIVATED----------");
  }else{
    noTone(buzzer);
    digitalWrite(rgbgreen,HIGH);
    digitalWrite(rgbblue,LOW);
    digitalWrite(rgbred,LOW);
    Serial.println("----------ALARM DEACTIVATED----------");
    delay(500);
  }//ELSE STATEMENT
}//VOIDLOOP