Published June 29, 2018

Controlling Servo Motor with IR Remote

If you are looking for comfort and the ability to control your electronic devices remotely, this will satisfy both.

AdvancedFull instructions provided3 hours4,827

Things used in this project

Hardware components

DFRobot DFRduino UNO

IR receiver (generic)

IR Remote

Breadboard (generic)

Jumper wires (generic)

Servos (Tower Pro MG996R)

Software apps and online services

Arduino IDE

Story

Introduction

In this project, we will learn how to control a servo motor with a remote control. This will give you a general concept on how to control remotely. You should know that the remote control sends Infrared (IR) signals, so we will learn how to receive and read these signals using Arduino.

The Process

We use Arduino UNO to control the servo motor and give us the functionality we want. We use the IR receiver to read IR signals from the remote control. The wiring for the IR receiver and servo motor are shown in pictures. Follow the steps for wiring in the pictures.

First, download the IR remote library for Arduino from here: https://github.com/z3t0/Arduino-IRremote/archive/master.zip

Open IRremote demo example from Arduino IDE, then upload it to the Arduino board.

Then open the serial monitor and try to click on any button on the remote control to send a signal to the IR receiver; the HEX code of each button must appear in the serial monitor as shown in the picture.

Then detect the HEX code of the buttons used to control the servo motor; assume you will use two buttons of your choice, one for clockwise rotation and another for counter clockwise rotation.

For example, use (+) for clockwise and (-) for counterclockwise, so you have to get their HEX codes.

(+) ---> A3C8EDDB

(-) ---> F076C13B

In the final code, the functionality allows you to click any two buttons for the motor to toggle between adjusting rotation directions and stopping. When you first click one button, the motor will rotate the button's direction, and when you secondly click the same button the motor will stop.

Code

Untitled file

#include <IRremote.h>      //must copy IRremote library to arduino libraries
#include <Servo.h>
#define plus 0xA3C8EDDB   //clockwise rotation button
#define minus 0xF076C13B  //counter clockwise rotation button

int RECV_PIN = 2;       //IR receiver pin
Servo servo;
int val;                //rotation angle
bool cwRotation, ccwRotation;  //the states of rotation

IRrecv irrecv(RECV_PIN);

decode_results results;

void setup()
{
  Serial.begin(9600);
  irrecv.enableIRIn(); // Start the receiver
  servo.attach(9);     //servo pin
}

void loop() 
{
  if (irrecv.decode(&results)) {
    Serial.println(results.value, HEX);
    irrecv.resume(); // Receive the next value

    if (results.value == plus)
    {
      cwRotation = !cwRotation;      //toggle the rotation value
      ccwRotation = false;         //no rotation in this direction
    }

    if (results.value == minus)
    {
      ccwRotation = !ccwRotation;   //toggle the rotation value
      cwRotation = false;            //no rotation in this direction
    }
  }
  if (cwRotation && (val != 175))  {
    val++;                         //for colockwise button
  }
  if (ccwRotation && (val != 0))  {
    val--;                         //for counter colockwise button
  }
  servo.write(val);
  delay(20);          //General speed
}

Credits

SHIVENDRA VATSA MISHRA

5 projects • 17 followers

Parsuing B.Tech from SRM Institute Of Science And Technology in Electrical And Electronics Engineering.

Controlling Servo Motor with IR Remote

Things used in this project

Hardware components

Software apps and online services

Story

Introduction

The Process

Schematics

Circuit Diagram

Code

Untitled file

Credits

SHIVENDRA VATSA MISHRA

Comments

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Controlling Servo Motor with IR Remote

Controlling Servo Motor with IR Remote

Things used in this project

Hardware components

Software apps and online services

Story

Introduction

The Process

Schematics

Circuit Diagram

Code

Untitled file

Credits

SHIVENDRA VATSA MISHRA

Comments

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