/*
   PIR sensors by servo motor tester using arduino mega 2560
*/

/*
   RESEARCH 21
*/



#include <Servo.h>

Servo servo1;
Servo servo2;
Servo servo3;
Servo servo4;

int pir_data1 = 8;
int pir_data2 = 7;
int servoPos = 0; 
int buzz = 12;

void setup()
{
  Serial.begin(9600);
  pinMode(8,INPUT);
  pinMode(7,INPUT);
  pinMode(buzz, OUTPUT);
  servo1.attach(3);
  servo2.attach(5);
  servo3.attach(6);
  servo4.attach(9);
}

void loop(){
  int pir_data1=digitalRead(8);
  int pir_data2=digitalRead(7);
  if(pir_data1==1){
    tone(buzz, 2000);
    detect1();
    delay(100);
    detect2();
    delay(100);
    detect1();
    delay(100);
    detect2();
    digitalWrite(buzz, HIGH);


  }
  else if(pir_data1==0){
    digitalWrite(buzz, LOW);

    detect3();
  }
  if(pir_data2==1){
    tone(buzz, 2000);
    detect1();
    delay(100);
    detect2();
    delay(100);
    detect1();
    delay(100);
    detect2();
    digitalWrite(buzz, HIGH);
    
  }
  else if(pir_data2==0){
    digitalWrite(buzz, LOW);
    detect3();
  }
  
  }
void detect1(){
    servo1.write(servoPos = 20);
    servo2.write(servoPos = 20);
    servo3.write(servoPos = 20);
    servo4.write(servoPos = 20);
    digitalWrite(buzz, HIGH);
}

void detect2(){
    servo1.write(servoPos = 180);
    servo2.write(servoPos = 180);
    servo3.write(servoPos = 180);
    servo4.write(servoPos = 180);
    digitalWrite(buzz, LOW);
}

void detect3(){
    servo1.write(servoPos = 0);
    servo2.write(servoPos = 0);
    servo3.write(servoPos = 0);
    servo4.write(servoPos = 0);
}