Using an IR Remote with LEDs

How to use IR to do stuff!

Jan 30, 2017

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remote control

Devices & Components

Arduino Uno Rev3

Resistor 221 ohm

Breadboard (generic)

LED (generic)

Jumper wires (generic)

IR Reciever (VS1838)

Software & Tools

Arduino IDE

Project description

Code

IR with LEDs Manual

arduino

In this code, you'll have to replace the value of the button you want to use for the "0xFD08F7" on row 29, as well as in row 32 and 35. With this code, once you press a button, an LED will turn on, and it won't turn off until you press the same button again. If you want them to turn off automatically after a certain amount of time, I left another code after this one.

1#include <IRremote.h>  
2
3const int RECV_PIN = 7;
4IRrecv irrecv(RECV_PIN);
5decode_results  results;
6 
7#define led1 4 //Associates led1 al to pin 4
8#define led2 5  //Associates led2 al to pin 5
9#define led3 6 //Associates led3 al to pin 6
10boolean  led1_est = false;  //variable that stores the state of the led
11boolean led2_est  = false;  //variable that stores the state of the led
12boolean led3_est = false;  //variable that stores the state of the led
13void setup()
14{
15  Serial.begin(9600);  //Initializes serial port
16  pinMode (led1, OUTPUT);  //Establishes led1 as  an output
17  pinMode (led2, OUTPUT);  //Establishes led2 as an output
18  pinMode  (led3, OUTPUT);  //Establishes led3 as an output
19
20  irrecv.enableIRIn();   
21}
22  
23void loop()
24{
25  if (irrecv.decode(&results))  //If it recieves data
26  {
27    Serial.println(results.value, HEX);  
28    irrecv.resume(); //Prepares  to recieve next value
29    if (results.value == 0xFD08F7) led1_est = !led1_est;  //Change here for the HEX value of your button
30      //If the recieved data  matches the one stored, changes the state of led1
31      
32    if (results.value  == 0xFD8877) led2_est = !led2_est;//Change here for the HEX value of your button
33      //If the recieved data matches the one stored, changes the state of led2
34      
35    if (results.value == 0xFD48B7) led3_est = !led3_est; //Change here  for the HEX value of your button
36      //If the recieved data matches the one  stored, changes the state of led3
37
38    else
39    {
40      Serial.println  ("Invalid Code");  //If it doesnt match the stored values, it prints out "Invalid  code"
41    }
42  }
43  digitalWrite(led1,led1_est);  //Asigns led1 the state  of "led1_est"
44  digitalWrite(led2,led2_est);  //Asigns led2 the state of "led2_est"
45  digitalWrite(led3,led3_est);  //Asigns led3 the state of "led3_est"
46
47}
48

#include <IRremote.h>  

const int RECV_PIN = 7;
IRrecv irrecv(RECV_PIN);
decode_results  results;
 
#define led1 4 //Associates led1 al to pin 4
#define led2 5  //Associates led2 al to pin 5
#define led3 6 //Associates led3 al to pin 6
boolean  led1_est = false;  //variable that stores the state of the led
boolean led2_est  = false;  //variable that stores the state of the led
boolean led3_est = false;  //variable that stores the state of the led
void setup()
{
  Serial.begin(9600);  //Initializes serial port
  pinMode (led1, OUTPUT);  //Establishes led1 as  an output
  pinMode (led2, OUTPUT);  //Establishes led2 as an output
  pinMode  (led3, OUTPUT);  //Establishes led3 as an output

  irrecv.enableIRIn();   
}
  
void loop()
{
  if (irrecv.decode(&results))  //If it recieves data
  {
    Serial.println(results.value, HEX);  
    irrecv.resume(); //Prepares  to recieve next value
    if (results.value == 0xFD08F7) led1_est = !led1_est;  //Change here for the HEX value of your button
      //If the recieved data  matches the one stored, changes the state of led1
      
    if (results.value  == 0xFD8877) led2_est = !led2_est;//Change here for the HEX value of your button
      //If the recieved data matches the one stored, changes the state of led2
      
    if (results.value == 0xFD48B7) led3_est = !led3_est; //Change here  for the HEX value of your button
      //If the recieved data matches the one  stored, changes the state of led3

    else
    {
      Serial.println  ("Invalid Code");  //If it doesnt match the stored values, it prints out "Invalid  code"
    }
  }
  digitalWrite(led1,led1_est);  //Asigns led1 the state  of "led1_est"
  digitalWrite(led2,led2_est);  //Asigns led2 the state of "led2_est"
  digitalWrite(led3,led3_est);  //Asigns led3 the state of "led3_est"

}

IR with LEDs Auto

arduino

However, with this code, once you turn on an LED by pressing the button, it will automatically go off after 2000 miliseconds (you can change this in the code in row 25, 32, 39)

1#include <IRremote.h>
2
3const int RECV_PIN = 7;
4IRrecv irrecv(RECV_PIN);
5decode_results  results;
6
7#define led1 4 //Associates led1 al to pin 4
8#define led2 5 //Associates  led2 al to pin 5
9#define led3 6 //Associates led3 al to pin 6
10
11void setup(){
12  irrecv.enableIRIn();
13  
14  pinMode(led1, OUTPUT);    //Establishes led1 as  an output
15  pinMode(led2, OUTPUT);    //Establishes led2 as an output
16  pinMode(led3,  OUTPUT);    //Establishes led3 as an output
17}
18
19void loop(){
20    if (irrecv.decode(&results)){
21
22        switch(results.value){
23          case 0xFD08F7: //Change here for the  HEX value of your button
24          digitalWrite(led1, HIGH);
25          delay(2000);
26          digitalWrite(led1, LOW);
27          }
28
29        switch(results.value){
30          case 0xFD8877: //Change here for the HEX value of your button
31          digitalWrite(led2,  HIGH);
32          delay(2000);
33          digitalWrite(led2, LOW);
34          }
35
36        switch(results.value){
37          case 0xFD48B7: //Change here for the  HEX value of your button
38          digitalWrite(led3, HIGH);
39          delay(2000);
40          digitalWrite(led3, LOW);
41          }
42
43
44        irrecv.resume();  
45    }
46}
47

#include <IRremote.h>

const int RECV_PIN = 7;
IRrecv irrecv(RECV_PIN);
decode_results  results;

#define led1 4 //Associates led1 al to pin 4
#define led2 5 //Associates  led2 al to pin 5
#define led3 6 //Associates led3 al to pin 6

void setup(){
  irrecv.enableIRIn();
  
  pinMode(led1, OUTPUT);    //Establishes led1 as  an output
  pinMode(led2, OUTPUT);    //Establishes led2 as an output
  pinMode(led3,  OUTPUT);    //Establishes led3 as an output
}

void loop(){
    if (irrecv.decode(&results)){

        switch(results.value){
          case 0xFD08F7: //Change here for the  HEX value of your button
          digitalWrite(led1, HIGH);
          delay(2000);
          digitalWrite(led1, LOW);
          }

        switch(results.value){
          case 0xFD8877: //Change here for the HEX value of your button
          digitalWrite(led2,  HIGH);
          delay(2000);
          digitalWrite(led2, LOW);
          }

        switch(results.value){
          case 0xFD48B7: //Change here for the  HEX value of your button
          digitalWrite(led3, HIGH);
          delay(2000);
          digitalWrite(led3, LOW);
          }


        irrecv.resume();  
    }
}

IR with LEDs Manual

arduino

1#include <IRremote.h>  
2
3const int RECV_PIN = 7;
4IRrecv irrecv(RECV_PIN);
5decode_results   results;
6 
7#define led1 4 //Associates led1 al to pin 4
8#define led2 5   //Associates led2 al to pin 5
9#define led3 6 //Associates led3 al to pin 6
10boolean   led1_est = false;  //variable that stores the state of the led
11boolean led2_est   = false;  //variable that stores the state of the led
12boolean led3_est = false;   //variable that stores the state of the led
13void setup()
14{
15  Serial.begin(9600);   //Initializes serial port
16  pinMode (led1, OUTPUT);  //Establishes led1 as   an output
17  pinMode (led2, OUTPUT);  //Establishes led2 as an output
18  pinMode   (led3, OUTPUT);  //Establishes led3 as an output
19
20  irrecv.enableIRIn();   
21}
22   
23void loop()
24{
25  if (irrecv.decode(&results))  //If it recieves data
26   {
27    Serial.println(results.value, HEX);  
28    irrecv.resume(); //Prepares   to recieve next value
29    if (results.value == 0xFD08F7) led1_est = !led1_est;   //Change here for the HEX value of your button
30      //If the recieved data   matches the one stored, changes the state of led1
31      
32    if (results.value   == 0xFD8877) led2_est = !led2_est;//Change here for the HEX value of your button
33       //If the recieved data matches the one stored, changes the state of led2
34       
35    if (results.value == 0xFD48B7) led3_est = !led3_est; //Change here   for the HEX value of your button
36      //If the recieved data matches the one   stored, changes the state of led3
37
38    else
39    {
40      Serial.println   ("Invalid Code");  //If it doesnt match the stored values, it prints out "Invalid   code"
41    }
42  }
43  digitalWrite(led1,led1_est);  //Asigns led1 the state   of "led1_est"
44  digitalWrite(led2,led2_est);  //Asigns led2 the state of "led2_est"
45   digitalWrite(led3,led3_est);  //Asigns led3 the state of "led3_est"
46
47}
48

#include <IRremote.h>  

const int RECV_PIN = 7;
IRrecv irrecv(RECV_PIN);
decode_results   results;
 
#define led1 4 //Associates led1 al to pin 4
#define led2 5   //Associates led2 al to pin 5
#define led3 6 //Associates led3 al to pin 6
boolean   led1_est = false;  //variable that stores the state of the led
boolean led2_est   = false;  //variable that stores the state of the led
boolean led3_est = false;   //variable that stores the state of the led
void setup()
{
  Serial.begin(9600);   //Initializes serial port
  pinMode (led1, OUTPUT);  //Establishes led1 as   an output
  pinMode (led2, OUTPUT);  //Establishes led2 as an output
  pinMode   (led3, OUTPUT);  //Establishes led3 as an output

  irrecv.enableIRIn();   
}
   
void loop()
{
  if (irrecv.decode(&results))  //If it recieves data
   {
    Serial.println(results.value, HEX);  
    irrecv.resume(); //Prepares   to recieve next value
    if (results.value == 0xFD08F7) led1_est = !led1_est;   //Change here for the HEX value of your button
      //If the recieved data   matches the one stored, changes the state of led1
      
    if (results.value   == 0xFD8877) led2_est = !led2_est;//Change here for the HEX value of your button
       //If the recieved data matches the one stored, changes the state of led2
       
    if (results.value == 0xFD48B7) led3_est = !led3_est; //Change here   for the HEX value of your button
      //If the recieved data matches the one   stored, changes the state of led3

    else
    {
      Serial.println   ("Invalid Code");  //If it doesnt match the stored values, it prints out "Invalid   code"
    }
  }
  digitalWrite(led1,led1_est);  //Asigns led1 the state   of "led1_est"
  digitalWrite(led2,led2_est);  //Asigns led2 the state of "led2_est"
   digitalWrite(led3,led3_est);  //Asigns led3 the state of "led3_est"

}

Downloadable files

ir_with_leds_I2UyZGhOzz.fzz

Schematics

ir_with_leds_I2UyZGhOzz.fzz

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