//PWM = PULSE WIDTH MODULASI
#include <Servo.h>
Servo servo1;
int Sudut=0;
int dpir, s ;

void setup() {
servo1.attach(3);
}

void loop() {
dpir=digitalRead(A3);
if(dpir==1)
{for (s=90;s>=0;s-=1)
{servo1.write(s);delay(50);}
}
else
{servo1.write(90);}
}
  // put your main code here, to run repeatedly: