#include <Servo.h> 

 

Servo Serv; 

int ServoPin = 3; 

int PirPin1 = 13; 

int PirPin2 = 11; 

int PirPin3 = 9; 

int PirPin4 = 7; 

int ServoAngle = 0; 

 

void setup() { 

  pinMode(PirPin1, INPUT); 

  pinMode(PirPin2, INPUT); 

  pinMode(PirPin3, INPUT); 

  pinMode(PirPin4, INPUT); 

  Serv.attach(ServoPin); 

  Serial.begin(9600); 

} 

 

void loop() { 

  int motionDetected = 90; 

   

  if (digitalRead(PirPin1) == HIGH) { 

    ServoAngle = 45; 

    motionDetected = 1; 

  } 

   

  if (digitalRead(PirPin2) == HIGH) { 

    ServoAngle = 90; 

    motionDetected = 1; 

  } 

   

  if (digitalRead(PirPin3) == HIGH) { 

    ServoAngle = 135; 

    motionDetected = 1; 

  } 

   

  if (digitalRead(PirPin4) == HIGH) { 

    ServoAngle = 180; 

    motionDetected = 1; 

  } 

   

  if (motionDetected) { 

    Serv.write(ServoAngle); 

    delay(1000); 

  } 

}