int button = 2;
int button1 = 3;
int led = 4;
int led1 = 6;
#include<Servo.h> //include the servo library
Servo servo;  //create a servo object
int pos = 0;  //initial position of the servo

void  setup() {
  // put your setup code here, to run once:
  servo.attach(9);  //pin  used by the servo

  pinMode(button, INPUT_PULLUP);  //define first button as  input pullup
  pinMode(button1, INPUT_PULLUP); //define second button as input  pullup
  
  pinMode(led, OUTPUT); //define first led
  pinMode(led1, OUTPUT); //define second led
}

void loop() {
  // put your main code here, to run repeatedly:
  if (digitalRead(button) ==  LOW) { //if Value read of the button ==LOW:
    pos++;  //increases the value  of the "pos" variable each time the push button of the left is pressed
    delay(5);  //5 milliseconds of delay
    servo.write(pos); //servo goes to variable pos

    digitalWrite(led, HIGH); 
    digitalWrite(led1, LOW); 
  }
  if (digitalRead(button1) == LOW) { //if Value read of the button ==LOW:
    pos--;  //decreases the value of the "pos" variable each time the push button  of the right is pressed
    delay(5); //5 milliseconds of delay
    servo.write(pos);  //servo goes to variable pos

    digitalWrite(led1, HIGH); 
    digitalWrite(led, LOW); 
  }
}