Arduino Experiment 8 - Driving a Servo Motor Modify

Definition : Driving servo with 2 buttons. If left button is pushed, servo turns to the left and if right button is pushed, servo will turn to the right.

Circuit Diagram

Components

•          2 x Button
•          2 x 10 KΩ Resistor
•          1 x Servo Motor
•          Arduino Uno
•          Bread Board

Code

#include <Servo.h>  // servo library

Servo servo1;  // servo control object

int ledred = 13;

int ledyellow = 12;

int ledgreen = 11;

int button1 = 2;

int button2 = 3;

int pos = 0;

boolean check = false;

void setup()

{

  pinMode(13,OUTPUT);

  pinMode(12,OUTPUT);

  pinMode(11,OUTPUT);

  pinMode(button1,INPUT);

  pinMode(button2,INPUT);

  servo1.attach(9);

}

void loop()

{

  int button1State, button2State;

  button1State = digitalRead(button1);

  button2State = digitalRead(button2);

 if(button1State == LOW && button2State == HIGH) {

   if(pos <170){

   pos = pos+100;

  check = true;

}

   }

  

   if(button2State == LOW && button1State == HIGH ) {

     if(pos > 10){

   pos = pos-100;

  check = true;

    }

   }

  if(check){

  servo1.write(pos);

  check = false;

  }

delay(200);

}

 Video