TV Remote for Speakers - IR Translator

Use your TV's IR remote to control the volume and mute of separate speakers without using the speaker's remote.

Oct 21, 2018

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Devices & Components

Arduino Nano

Super-bright 5mm IR LED - 940nm

Resistor 220 ohm

Blue LED

USB Pigtail

IR (Infrared) Receiver Sensor - TSOP38238

Hardware & Tools

Soldering iron (generic)

Hot glue gun (generic)

Project description

Code

TV IR remote to Speaker IR remote code translator

arduino

recieve IR codes from TV IR remote control, send code for speaker system You will first need to gather the IR codes for your TV's remote and your speaker system remote. See "IR Remote" tutorials elsewhere for how to do this. The below is for LG Magic Remote and EDIFIER R1280DB speakers.

1#include <IRLibSendBase.h>
2#include <IRLibDecodeBase.h> // First include
3  the decode base
4#include <IRLib_P01_NEC.h>
5#include <IRLibCombo.h>
6#include
7  <IRLibRecv.h>
8IRdecodeNEC myDecoder; // Now declare an instance of that decoder.
9IRsend
10  mySender;       //pin 3 is set aas IR LED transmitter output by IRLibSendBase.h
11IRrecv
12  myReceiver(2); //pin number for the receiver
13
14void setup() {
15  myReceiver.enableIRIn();
16  //Start the receiver
17  pinMode(4, OUTPUT); //BLUE LED CONNECTED TO PIN 4
18
19  pinMode(13, OUTPUT);
20  digitalWrite(13, LOW);
21}
22
23void loop() {
24
25  digitalWrite(4, LOW);
26  if (myReceiver.getResults()) {
27    if (myDecoder.decode())
28  {
29      switch (myDecoder.value) {
30        case 0xFF827D: mySender.send(NEC,
31  0x8E7906F, 0); //if rcv TV VOL UP, send SPKR VOL UP
32          delay(25);
33
34          digitalWrite(4, HIGH); // 1st BLUE LED BLINK
35          delay(200);
36
37          digitalWrite(4, LOW);
38          delay(25);
39          mySender.send(NEC,
40  0x8E7906F, 0); //resend SPKR VOL UP
41          delay(25);
42          digitalWrite(4,
43  HIGH); // 2nd BLUE LED BLINK (2 BLINKS FOR VOL UP)
44          delay(200);
45
46          digitalWrite(4, LOW);
47          break; 
48
49        case 0xFFA25D:
50  mySender.send(NEC, 0x8E730CF, 0); //if rcv TV VOL DOWN, send SPKR VOL DOWN
51          delay(25);
52
53          digitalWrite(4, HIGH); // 1 BLUE BLINK FOR VOL DOWN
54          delay(200);
55
56          digitalWrite(4, LOW);
57          delay(25);
58          mySender.send(NEC,
59  0x8E730CF, 0); //resend SPKR VOL DOWN
60          delay(25);
61          mySender.send(NEC,
62  0x8E730CF, 0); //resend SPKR VOL DOWN
63          delay(25);
64          break;
65  
66
67        case 0xFF12ED: mySender.send(NEC, 0x8E700FF, 0); //if rcv TV MUTE,
68  send SPKR MUTE
69          delay(25);
70          digitalWrite(4, HIGH); // LONG
71  BLUE BLINK FOR MUTE ACKNOWLEDGED
72          delay(800);
73          break;
74
75      }
76    }
77
78    delay(200);
79    digitalWrite(4, LOW);
80    myReceiver.enableIRIn();
81  //Re-enable rcvr after sending
82  }
83}

#include <IRLibSendBase.h>
#include <IRLibDecodeBase.h> // First include
  the decode base
#include <IRLib_P01_NEC.h>
#include <IRLibCombo.h>
#include
  <IRLibRecv.h>
IRdecodeNEC myDecoder; // Now declare an instance of that decoder.
IRsend
  mySender;       //pin 3 is set aas IR LED transmitter output by IRLibSendBase.h
IRrecv
  myReceiver(2); //pin number for the receiver

void setup() {
  myReceiver.enableIRIn();
  //Start the receiver
  pinMode(4, OUTPUT); //BLUE LED CONNECTED TO PIN 4

  pinMode(13, OUTPUT);
  digitalWrite(13, LOW);
}

void loop() {

  digitalWrite(4, LOW);
  if (myReceiver.getResults()) {
    if (myDecoder.decode())
  {
      switch (myDecoder.value) {
        case 0xFF827D: mySender.send(NEC,
  0x8E7906F, 0); //if rcv TV VOL UP, send SPKR VOL UP
          delay(25);

          digitalWrite(4, HIGH); // 1st BLUE LED BLINK
          delay(200);

          digitalWrite(4, LOW);
          delay(25);
          mySender.send(NEC,
  0x8E7906F, 0); //resend SPKR VOL UP
          delay(25);
          digitalWrite(4,
  HIGH); // 2nd BLUE LED BLINK (2 BLINKS FOR VOL UP)
          delay(200);

          digitalWrite(4, LOW);
          break; 

        case 0xFFA25D:
  mySender.send(NEC, 0x8E730CF, 0); //if rcv TV VOL DOWN, send SPKR VOL DOWN
          delay(25);

          digitalWrite(4, HIGH); // 1 BLUE BLINK FOR VOL DOWN
          delay(200);

          digitalWrite(4, LOW);
          delay(25);
          mySender.send(NEC,
  0x8E730CF, 0); //resend SPKR VOL DOWN
          delay(25);
          mySender.send(NEC,
  0x8E730CF, 0); //resend SPKR VOL DOWN
          delay(25);
          break;
  

        case 0xFF12ED: mySender.send(NEC, 0x8E700FF, 0); //if rcv TV MUTE,
  send SPKR MUTE
          delay(25);
          digitalWrite(4, HIGH); // LONG
  BLUE BLINK FOR MUTE ACKNOWLEDGED
          delay(800);
          break;

      }
    }

    delay(200);
    digitalWrite(4, LOW);
    myReceiver.enableIRIn();
  //Re-enable rcvr after sending
  }
}

TV IR Remote translator

arduino

1#include <IRLibSendBase.h>
2#include <IRLibDecodeBase.h> // First include  the decode base
3#include <IRLib_P01_NEC.h>
4#include <IRLibCombo.h>
5#include  <IRLibRecv.h>
6IRdecodeNEC myDecoder; // Now declare an instance of that decoder.
7IRsend  mySender;       // Pin 3 set as IR LED by IRLibSendBase.h
8IRrecv myReceiver(2);  // Pin 2 is IR receiver
9
10void setup() {
11  myReceiver.enableIRIn(); //Start  the receiver
12  pinMode(4, OUTPUT); // Pin 4 is BLUE LED for visual confirmation  of "IR command sent"
13  pinMode(13, OUTPUT);
14  digitalWrite(13, LOW);
15}
16
17void  loop() {
18  digitalWrite(4, LOW);
19  if (myReceiver.getResults()) {
20    if  (myDecoder.decode()) {
21      switch (myDecoder.value) {
22        case 0xFF827D:  mySender.send(NEC, 0x8E7906F, 0); //if rcv TV VOL UP, send SPKR VOL UP
23          delay(25);
24          digitalWrite(4, HIGH); // 1st BLUE LED BLINK
25          delay(200);
26          digitalWrite(4, LOW);
27          delay(25);
28          mySender.send(NEC,  0x8E7906F, 0); //resend SPKR VOL UP
29          delay(25);
30          digitalWrite(4,  HIGH); // 2nd BLUE LED BLINK (2 BLINKS FOR VOL UP)
31          delay(200);
32          digitalWrite(4, LOW);
33          break; 
34
35        case 0xFFA25D:  mySender.send(NEC, 0x8E730CF, 0); //if rcv TV VOL DOWN, send SPKR VOL DOWN
36          delay(25);
37          digitalWrite(4, HIGH); // SINGLE BLUE BLINK FOR VOL DOWN
38          delay(200);
39          digitalWrite(4, LOW);
40          delay(25);
41          mySender.send(NEC,  0x8E730CF, 0); //resend SPKR VOL DOWN
42          delay(25);
43          mySender.send(NEC,  0x8E730CF, 0); //resend SPKR VOL DOWN
44          delay(25);
45          break;  
46
47        case 0xFF12ED: mySender.send(NEC, 0x8E700FF, 0); //if rcv TV MUTE,  send SPKR MUTE
48          delay(25);
49          digitalWrite(4, HIGH); // LONG  BLUE BLINK FOR MUTE ACKNOWLEDGED
50          delay(800);
51          break;
52      }
53    }
54
55    delay(200);
56    digitalWrite(4, LOW);
57    myReceiver.enableIRIn();  //Re-enable rcvr after sending
58  }
59}

#include <IRLibSendBase.h>
#include <IRLibDecodeBase.h> // First include  the decode base
#include <IRLib_P01_NEC.h>
#include <IRLibCombo.h>
#include  <IRLibRecv.h>
IRdecodeNEC myDecoder; // Now declare an instance of that decoder.
IRsend  mySender;       // Pin 3 set as IR LED by IRLibSendBase.h
IRrecv myReceiver(2);  // Pin 2 is IR receiver

void setup() {
  myReceiver.enableIRIn(); //Start  the receiver
  pinMode(4, OUTPUT); // Pin 4 is BLUE LED for visual confirmation  of "IR command sent"
  pinMode(13, OUTPUT);
  digitalWrite(13, LOW);
}

void  loop() {
  digitalWrite(4, LOW);
  if (myReceiver.getResults()) {
    if  (myDecoder.decode()) {
      switch (myDecoder.value) {
        case 0xFF827D:  mySender.send(NEC, 0x8E7906F, 0); //if rcv TV VOL UP, send SPKR VOL UP
          delay(25);
          digitalWrite(4, HIGH); // 1st BLUE LED BLINK
          delay(200);
          digitalWrite(4, LOW);
          delay(25);
          mySender.send(NEC,  0x8E7906F, 0); //resend SPKR VOL UP
          delay(25);
          digitalWrite(4,  HIGH); // 2nd BLUE LED BLINK (2 BLINKS FOR VOL UP)
          delay(200);
          digitalWrite(4, LOW);
          break; 

        case 0xFFA25D:  mySender.send(NEC, 0x8E730CF, 0); //if rcv TV VOL DOWN, send SPKR VOL DOWN
          delay(25);
          digitalWrite(4, HIGH); // SINGLE BLUE BLINK FOR VOL DOWN
          delay(200);
          digitalWrite(4, LOW);
          delay(25);
          mySender.send(NEC,  0x8E730CF, 0); //resend SPKR VOL DOWN
          delay(25);
          mySender.send(NEC,  0x8E730CF, 0); //resend SPKR VOL DOWN
          delay(25);
          break;  

        case 0xFF12ED: mySender.send(NEC, 0x8E700FF, 0); //if rcv TV MUTE,  send SPKR MUTE
          delay(25);
          digitalWrite(4, HIGH); // LONG  BLUE BLINK FOR MUTE ACKNOWLEDGED
          delay(800);
          break;
      }
    }

    delay(200);
    digitalWrite(4, LOW);
    myReceiver.enableIRIn();  //Re-enable rcvr after sending
  }
}

TV IR remote to Speaker IR remote code translator

arduino

1#include <IRLibSendBase.h>
2#include <IRLibDecodeBase.h> // First include  the decode base
3#include <IRLib_P01_NEC.h>
4#include <IRLibCombo.h>
5#include  <IRLibRecv.h>
6IRdecodeNEC myDecoder; // Now declare an instance of that decoder.
7IRsend  mySender;       //pin 3 is set aas IR LED transmitter output by IRLibSendBase.h
8IRrecv  myReceiver(2); //pin number for the receiver
9
10void setup() {
11  myReceiver.enableIRIn();  //Start the receiver
12  pinMode(4, OUTPUT); //BLUE LED CONNECTED TO PIN 4
13  pinMode(13, OUTPUT);
14  digitalWrite(13, LOW);
15}
16
17void loop() {
18  digitalWrite(4, LOW);
19  if (myReceiver.getResults()) {
20    if (myDecoder.decode())  {
21      switch (myDecoder.value) {
22        case 0xFF827D: mySender.send(NEC,  0x8E7906F, 0); //if rcv TV VOL UP, send SPKR VOL UP
23          delay(25);
24          digitalWrite(4, HIGH); // 1st BLUE LED BLINK
25          delay(200);
26          digitalWrite(4, LOW);
27          delay(25);
28          mySender.send(NEC,  0x8E7906F, 0); //resend SPKR VOL UP
29          delay(25);
30          digitalWrite(4,  HIGH); // 2nd BLUE LED BLINK (2 BLINKS FOR VOL UP)
31          delay(200);
32          digitalWrite(4, LOW);
33          break; 
34
35        case 0xFFA25D:  mySender.send(NEC, 0x8E730CF, 0); //if rcv TV VOL DOWN, send SPKR VOL DOWN
36          delay(25);
37          digitalWrite(4, HIGH); // 1 BLUE BLINK FOR VOL DOWN
38          delay(200);
39          digitalWrite(4, LOW);
40          delay(25);
41          mySender.send(NEC,  0x8E730CF, 0); //resend SPKR VOL DOWN
42          delay(25);
43          mySender.send(NEC,  0x8E730CF, 0); //resend SPKR VOL DOWN
44          delay(25);
45          break;  
46
47        case 0xFF12ED: mySender.send(NEC, 0x8E700FF, 0); //if rcv TV MUTE,  send SPKR MUTE
48          delay(25);
49          digitalWrite(4, HIGH); // LONG  BLUE BLINK FOR MUTE ACKNOWLEDGED
50          delay(800);
51          break;
52      }
53    }
54
55    delay(200);
56    digitalWrite(4, LOW);
57    myReceiver.enableIRIn();  //Re-enable rcvr after sending
58  }
59}

#include <IRLibSendBase.h>
#include <IRLibDecodeBase.h> // First include  the decode base
#include <IRLib_P01_NEC.h>
#include <IRLibCombo.h>
#include  <IRLibRecv.h>
IRdecodeNEC myDecoder; // Now declare an instance of that decoder.
IRsend  mySender;       //pin 3 is set aas IR LED transmitter output by IRLibSendBase.h
IRrecv  myReceiver(2); //pin number for the receiver

void setup() {
  myReceiver.enableIRIn();  //Start the receiver
  pinMode(4, OUTPUT); //BLUE LED CONNECTED TO PIN 4
  pinMode(13, OUTPUT);
  digitalWrite(13, LOW);
}

void loop() {
  digitalWrite(4, LOW);
  if (myReceiver.getResults()) {
    if (myDecoder.decode())  {
      switch (myDecoder.value) {
        case 0xFF827D: mySender.send(NEC,  0x8E7906F, 0); //if rcv TV VOL UP, send SPKR VOL UP
          delay(25);
          digitalWrite(4, HIGH); // 1st BLUE LED BLINK
          delay(200);
          digitalWrite(4, LOW);
          delay(25);
          mySender.send(NEC,  0x8E7906F, 0); //resend SPKR VOL UP
          delay(25);
          digitalWrite(4,  HIGH); // 2nd BLUE LED BLINK (2 BLINKS FOR VOL UP)
          delay(200);
          digitalWrite(4, LOW);
          break; 

        case 0xFFA25D:  mySender.send(NEC, 0x8E730CF, 0); //if rcv TV VOL DOWN, send SPKR VOL DOWN
          delay(25);
          digitalWrite(4, HIGH); // 1 BLUE BLINK FOR VOL DOWN
          delay(200);
          digitalWrite(4, LOW);
          delay(25);
          mySender.send(NEC,  0x8E730CF, 0); //resend SPKR VOL DOWN
          delay(25);
          mySender.send(NEC,  0x8E730CF, 0); //resend SPKR VOL DOWN
          delay(25);
          break;  

        case 0xFF12ED: mySender.send(NEC, 0x8E700FF, 0); //if rcv TV MUTE,  send SPKR MUTE
          delay(25);
          digitalWrite(4, HIGH); // LONG  BLUE BLINK FOR MUTE ACKNOWLEDGED
          delay(800);
          break;
      }
    }

    delay(200);
    digitalWrite(4, LOW);
    myReceiver.enableIRIn();  //Re-enable rcvr after sending
  }
}

Downloadable files

IR translator schematic

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