Errors in IRremote

Using Arduino Programming Questions
1

Hi,
I'm rather new on Arduino (I blew up my first yesterday :frowning: but still enjoying it).

Now i'm trying de use an infrared sensor and a remote control.
I'm using the library IRremote.h and tried it with different sketches.
They all result in the same error messages wich I don't understand.

IRremote.cpp.o: In function _GLOBAL__sub_I_receiver': IRremote.cpp:10: undefined reference to IRrecv::enableIRIn()'
IRremote.cpp:10: undefined reference to IRrecv::decode(decode_results*)' IRremote.cpp:10: undefined reference to IRrecv::resume()'
IRremote.cpp:10: undefined reference to `IRrecv::IRrecv(int)'
collect2: error: ld returned 1 exit status

Can anybody help me to understand what is wrong?

Paul

2

not with out seeing the code you are trying to use.

The library is unhappy with something you are doing. look at a example in the library to see how the enable, decode, resume and irrecv is used

3

Did you install the whole library, (all files), or just the "IRremote.h" file?

4

Hi,

I used the library and the code from https://brainy-bits.com/tutorials/ir-remote-arduino/
The Library is the set with IRremote.h, IRremoteInt.h and IRremote.cpp.

This is the code I copied

#include "IRremote.h"

int receiver = 11; // Signal Pin of IR receiver to Arduino Digital Pin 11

/-----( Declare objects )-----/
IRrecv irrecv(receiver); // create instance of 'irrecv'
decode_results results; // create instance of 'decode_results'

void setup() /----( SETUP: RUNS ONCE )----/
{
Serial.begin(9600);
Serial.println("IR Receiver Button Decode");
irrecv.enableIRIn(); // Start the receiver

}/--(end setup )---/

void loop() /----( LOOP: RUNS CONSTANTLY )----/
{
if (irrecv.decode(&results)) // have we received an IR signal?

{
translateIR();
irrecv.resume(); // receive the next value
}
}/* --(end main loop )-- */

/-----( Function )-----/
void translateIR() // takes action based on IR code received

// describing Remote IR codes

{

switch(results.value)

{

case 0xFF629D: Serial.println(" FORWARD"); break;
case 0xFF22DD: Serial.println(" LEFT"); break;
case 0xFF02FD: Serial.println(" -OK-"); break;
case 0xFFC23D: Serial.println(" RIGHT"); break;
case 0xFFA857: Serial.println(" REVERSE"); break;
case 0xFF6897: Serial.println(" 1"); break;
case 0xFF9867: Serial.println(" 2"); break;
case 0xFFB04F: Serial.println(" 3"); break;
case 0xFF30CF: Serial.println(" 4"); break;
case 0xFF18E7: Serial.println(" 5"); break;
case 0xFF7A85: Serial.println(" 6"); break;
case 0xFF10EF: Serial.println(" 7"); break;
case 0xFF38C7: Serial.println(" 8"); break;
case 0xFF5AA5: Serial.println(" 9"); break;
case 0xFF42BD: Serial.println(" *"); break;
case 0xFF4AB5: Serial.println(" 0"); break;
case 0xFF52AD: Serial.println(" #"); break;
case 0xFFFFFFFF: Serial.println(" REPEAT");break;

default:
Serial.println(" other button ");

}// End Case

delay(500); // Do not get immediate repeat

} //END translateIR

5

Where are the library files installed?

6

On my Raspberry in the map /home/pi/sketchbook/libraries where I keep all the self-installed libraries

7

When posting code or error messages, it should always be done between code tags, not inline. Code tags can be generated with the </> button in the "Reply" window.
Or you can type them manually, with code and /code , both in square brackets.

Edit: It's best to put each statement on a separate line, too, for readability.

Edit2: The code compiles fine. It's definitely a problem with your library installation.

8

Hi,

Downloaded the stable-version of the Github libraries en now the problem seems te be solved.

thans all for your help

Paul