Introduction: Arduino IR Remote Control
Source: http://www.theorycircuit.com/arduino-universal-remote/
By using arduino and IR Receiver TSOP 1738 (in our project, you can use any ir receiver available) we can decode any infrared remote code into hex or some other format. Before constructing the circuit check datasheet of IR receiver having in your hand, hence you can connect proper bias pins and output pin.
Step 1: Wiring Components
To read the IR rays from remote control by arduino board we need external library that is IRremote library, you can get IRremote library here. (how to insert new library in arduino IDE)
Step 2: Receiving IR Hex Code
In this project first we have executed the IRrecvDemo example program from the arduino IR library example and decoded IR rays from remote.
(Note: If you have any error while running this library, remove “IRremoteTools.cpp” from libraries\RobotIRremote\IRremoteTools.cpp)
Arduino Code for Receiving IR as Hex code
#include <IRremote.h>
int RECV_PIN = 11;
IRrecv irrecv(RECV_PIN);
decode_results results;
void setup()
{
Serial.begin(9600);
irrecv.enableIRIn(); // Start the receiver
}
void loop(){
if (irrecv.decode(&results)) {
Serial.println(results.value, HEX);
irrecv.resume(); // Receive the next value }
}
Attachments
Step 3: Remote Control With Arduino
Then we used decoded data as switching condition in arduino sketch to turn on and off the three LEDs.
Arduino Code
#include <IRremote.h>
int RECV_PIN = 11; //
int output1 = 2;
int output2 = 4;
int output3 = 6;
int itsONled[] = {0,0,0,0};
#define code1 0xFF807F //
#define code2 0xFFA05F //
#define code3 0xFF906F //
IRrecv irrecv(RECV_PIN);
decode_results results;
void setup() {
Serial.begin(9600); //
irrecv.enableIRIn(); //
pinMode(output1, OUTPUT);
pinMode(output2, OUTPUT);
pinMode(output3, OUTPUT);
}
void loop() {
if (irrecv.decode(&results)) {
unsigned int value = results.value;
switch(value) {
case code1:
if(itsONled[1] == 1) { //
digitalWrite(output1, LOW); //
itsONled[1] = 0; // } else { //
digitalWrite(output1, HIGH); //
itsONled[1] = 1; //
}
break;
case code2:
if(itsONled[2] == 1) {
digitalWrite(output2, LOW);
itsONled[2] = 0; } else {
digitalWrite(output2, HIGH);
itsONled[2] = 1;
}
break;
case code3:
if(itsONled[3] == 1) {
digitalWrite(output3, LOW);
itsONled[3] = 0; } else {
digitalWrite(output3, HIGH);
itsONled[3] = 1;
}
break;
}
Serial.println(value); // you can comment this line
irrecv.resume(); // Receive the next value
}
}
Attachments
Step 4: Prototype

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13 Comments
6 years ago
can you use motors instead of leds?
Reply 6 years ago
Yes you can! but you should use ic L293D to drive motors.
Thank you
Reply 6 years ago
havent got the parts yet but there coming
Reply 6 years ago
thanks I will give it a go
1 year ago
Im done exactly same but I'm getting as result on serial monitor only
0
0
0
0
........
Why ? And why i can't get hex code?
Help me please
Question 3 years ago on Step 1
I have a different remote ......its not working with the project ...? Any changes need to be done ?
5 years ago
Hello,
I am using a VS 1838 ir receiver. The receiver is working but when I press an button on my remote the serial monitor shows many HEX values for the same button. What can I do about that?
6 years ago
sir can u write code for 4 LED's plz
6 years ago
my code running perfect but serial monitor is showing garbage values without connecting TSOP1136 . But after connecting it does not takes any values in IRrecvDemo.ino
6 years ago
please help me...I am getting error saying fatal error WProgram.h no such file or directory....
6 years ago
my arduino hanged when ir remote was used after sometime.
it doesnt works whenever i'll press reset switch.
help plz.
6 years ago
my arduino hanged when ir remote was used after sometime.
it doesnt works whenever i'll press reset switch.
help plz.
6 years ago
hey i like your project. can you write code for 8 leds? please send to ptrushang@gmail.com