#include <Servo.h>

#define ON_BTN_PIN 7
#define OFF_BTN_PIN 8
#define SERVO_PIN 6
#define HOME_POSITION 90
#define ON_POSITION 35
#define OFF_POSITION 155


Servo arm;

void setup() {
  pinMode(ON_BTN_PIN, INPUT_PULLUP);
  pinMode(OFF_BTN_PIN, INPUT_PULLUP);

  arm.attach(SERVO_PIN);
  arm.write(HOME_POSITION);
}

void loop() {
  if(digitalRead(ON_BTN_PIN) == LOW) {
    arm.write(ON_POSITION);
    delay(1000);
    arm.write(HOME_POSITION);
  }

  if(digitalRead(OFF_BTN_PIN) == LOW) {
    arm.write(OFF_POSITION);
    delay(1000);
    arm.write(HOME_POSITION);
  }

  delay(100);
}