IR remote Library versions?

Projects General Guidance
1

I have a Code I found that I wanted to use however I cant get the IR LED to work and the source doesn't indicate the version of IR remote library used

can anyone shed some light if im missing something or how to port the codes to make it work

Arduino Mega where the IR LED in pin D3
//==========================IR Library===========================//
#include <IRremote.h>
//================Configure The Input Pins======================//
#define pitch A11
#define roll  A12
#define yaw   A8
#define throttle  A9
#define aux1 A13
#define aux2 A10
#define aux3 A14
#define aux4 A15
#define red 2 //RBG LED Is Comman Anode 
#define blue 30
#define green 31
#define arm_disarm 13
IRsend irsend;//By Default The IR LED Is D3
int aux1val=0;
int aux2val=0;
int aux1TX=0;
int aux2TX=0;
//================Correction Variable===========//
/* If received value is not exactly middle(1500), include the +/- correction value*/
int PitchCorrection=0;
int RollCorrection=0;
int ThrottleCorrection=0;
int YawCorrection=0;

void setup() {
  pinMode(pitch,INPUT);
  pinMode(roll,INPUT);
  pinMode(yaw,INPUT);
  pinMode(throttle,INPUT);
  pinMode(aux1,INPUT_PULLUP);
  pinMode(aux2,INPUT_PULLUP);
  pinMode(aux3,INPUT);
  pinMode(aux4,INPUT);
  pinMode(red,OUTPUT);
  pinMode(blue,OUTPUT);
  pinMode(green,OUTPUT);
  pinMode(arm_disarm,OUTPUT);
  digitalWrite(red,HIGH);
  digitalWrite(blue,HIGH);
  digitalWrite(green,HIGH);
  digitalWrite(arm_disarm,LOW);

  Serial.begin(9600);
}

void loop() {
  //============Reading Joystick Analog Data===========//
  int pitchVal=analogRead(pitch);
  int rollVal=analogRead(roll);
  int yawVal=analogRead(yaw);
  int throttleVal=analogRead(throttle);
  //===============Converting To 8Bit Values==========//
  uint8_t pitchTX=map(pitchVal,0,1023,0,255)+PitchCorrection;
  uint8_t rollTX=map(rollVal,0,1023,0,255)+RollCorrection;
  uint8_t yawTX=map(yawVal,0,1023,0,255)+ThrottleCorrection;
  uint8_t throttleTX=map(throttleVal,0,1023,0,255)+YawCorrection;
  //=============Merging As Single 32Bit Data========//
  uint32_t j1 = ((pitchTX<<8) | rollTX);
  uint32_t j2 = (yawTX<<8) | throttleTX;
  j2=j2 & 0x000FFFF;
  uint32_t joystick = (j1<<16) | j2;
        
  irsend.sendRC5(joystick,32); //Transmitting The Joystick Data
  delay(26);

 //=================Reading Aux1 Button===============//
 if(digitalRead(aux1)==LOW)
 {
  aux1val++;
 }
 if(aux1val%2== 0)
 {
  aux1TX=0;
  digitalWrite(arm_disarm,LOW);
 }
 else
 {
  digitalWrite(arm_disarm,HIGH);
  aux1TX=255;
 }
 
 //=================Reading Aux2 Button===============//
 if(digitalRead(aux2)==LOW)
 {
  aux2val++;
 }
 if(aux2val%3==0)
 {
  aux2TX=0;
  digitalWrite(red,HIGH);
  digitalWrite(blue,LOW);
  digitalWrite(green,HIGH);
 }
 else if(aux2val%3==1)
 {
  aux2TX=127;
  digitalWrite(red,HIGH);
  digitalWrite(blue,HIGH);
  digitalWrite(green,LOW);
 }
 else
 {
  aux2TX=255;
  digitalWrite(red,LOW);
  digitalWrite(blue,HIGH);
  digitalWrite(green,HIGH);
 }
 //============Reading Analog Data============//
  int aux3val=analogRead(aux3);
  int aux4val=analogRead(aux4);
  uint8_t aux3TX=map(aux3val,0,1023,0,255);
  uint8_t aux4TX=map(aux4val,0,1023,0,255);
  //=========Merging As Single 32Bit Data========//
  uint32_t a1 = ((aux1TX<<8) | aux2TX);
  uint32_t a2 = (aux3TX<<8) | aux4TX;
  a2=a2 & 0x000FFFF;
  uint32_t aux = (a1<<16) | a2;
  
  irsend.sendNEC(aux,32);//Transmitting Signal 
  delay(26);
//=============Printing The Value============//
//=====uncomment to debug the output========//

Serial.print(pitchTX);Serial.print(" ");
Serial.print(rollTX);Serial.print(" ");
//Serial.print(throttleTX);Serial.print(" ");
//Serial.print(yawTX);Serial.print(" ");
//Serial.print(aux1TX);Serial.print(" ");
//Serial.print(aux2TX);Serial.print(" ");
//Serial.print(aux3TX);Serial.print(" ");
//Serial.print(aux4TX);Serial.print(" ");
//Serial.print(pitchTX);Serial.println();

}
2

The library version is the one you have installed in your IDE, so you should just open the Library Manager and search for IRremote library. If the code you have requires a specific library it's something you should read or get from the code source (is it yours or what?).
Then a few more questions... Have you never received the RC5 signal? Are you sure the device you need to control has RC5 coding? Have you checked if the IR led is sending any IR signal (e.g. by using your phone camera)? Which IR led are you using, and how you have connected it to Arduino?

3

The code is from library version 2.x, syntax for newer library is different.
Library readme gives instructions how to modify old code for 4.x version.

4

Do you have the original remote controller, or are you trying to emulate a remote controller that you don't have?

5

sofar Ive manage to get the LED working on the arduino UNO D3 pin however its not working on the Arduino Mega 2560.

I yet to confirm if there is data coming from the LED

6

I building a remote transmitter off an Arduino . it seem to have an output on D3 if its run on an UNO but for a MEGA2560 no signal

7

if it were to be converted to V4 how would this go

8

Try with pin 9. That's the library default emitter pin for 2560.

9

The IRsendDemo.ino has these lines in setup()

    Serial.print(F("Ready to send IR signals at pin "));
    Serial.println(IR_SEND_PIN);

You could add it to your code to find out which pin is being used.

10

An LED is an output, not input.

11

There's no reason that could give this result. If you're using the same sketch, the behaviour must be the same.
But first things first, please answer my questions from post #2:

Have you never received the RC5 signal? Are you sure the device you need to control has RC5 coding? Have you checked if the IR led is sending any IR signal (e.g. by using your phone camera)? Which IR led are you using, and how you have connected it to Arduino?

And, besides that, have you tried writing a simple sketch to send a single command via IR (e.g. the "Volume Up" button) and maybe even running the example sketches from the IRremote library (e.g. ) on the Mega?

12

The codes work on the uno but on a mega it has issues

13

So did you try with pin 9 like I suggested?

14

I completely agree, using IRremote with Arduino Mega, the default pin for irsend() is pin 9 because it needs Arduino internal hardware timers, and on Mega 2560, pin 9 is associated with the Timer 2, compatible with IR signal generation.

Just connect the IR to pin 9.