Arduino UNO & Infrared Receiver Kit

Other Hardware Sensors
1

Hi,

I want send instructions to my arduino with remote control and IR receiver (buy a ebay kit).

It's my IR receiver :

I download the good library and tested a simple example. Here is my code :

/*
 * IRremote: IRrecvDemo - demonstrates receiving IR codes with IRrecv
 * An IR detector/demodulator must be connected to the input RECV_PIN.
 * Version 0.1 July, 2009
 * Copyright 2009 Ken Shirriff
 * http://arcfn.com
 */

#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
  }
}

Example scheme, replace 2 to 11...

My result :

0
FFFFFFFFF
0
FFFFFFFFF
0
FFFFFFFFF
0
FFFFFFFFF
0
FFFFFFFFF
...

But that should be the good result...

And sometimes, when I press a button on the remote control, it's okay... randomly... but really sometimes.

Can you help me ?

Thanks :slight_smile:

2

It might be because you are using an unsupported remote? Try a different remote or alternative us the "IRrecvDump" example:

/*
 * IRremote: IRrecvDump - dump details of IR codes with IRrecv
 * An IR detector/demodulator must be connected to the input RECV_PIN.
 * Version 0.1 July, 2009
 * Copyright 2009 Ken Shirriff
 * http://arcfn.com
 */

#include <IRremote.h>

int RECV_PIN = 11;

IRrecv irrecv(RECV_PIN);

decode_results results;

void setup()
{
  Serial.begin(9600);
  irrecv.enableIRIn(); // Start the receiver
}

// Dumps out the decode_results structure.
// Call this after IRrecv::decode()
// void * to work around compiler issue
//void dump(void *v) {
//  decode_results *results = (decode_results *)v
void dump(decode_results *results) {
  int count = results->rawlen;
  if (results->decode_type == UNKNOWN) {
    Serial.println("Could not decode message");
  } 
  else {
    if (results->decode_type == NEC) {
      Serial.print("Decoded NEC: ");
    } 
    else if (results->decode_type == SONY) {
      Serial.print("Decoded SONY: ");
    } 
    else if (results->decode_type == RC5) {
      Serial.print("Decoded RC5: ");
    } 
    else if (results->decode_type == RC6) {
      Serial.print("Decoded RC6: ");
    }
    Serial.print(results->value, HEX);
    Serial.print(" (");
    Serial.print(results->bits, DEC);
    Serial.println(" bits)");
  }
  Serial.print("Raw (");
  Serial.print(count, DEC);
  Serial.print("): ");

  for (int i = 0; i < count; i++) {
    if ((i % 2) == 1) {
      Serial.print(results->rawbuf[i]*USECPERTICK, DEC);
    } 
    else {
      Serial.print(-(int)results->rawbuf[i]*USECPERTICK, DEC);
    }
    Serial.print(" ");
  }
  Serial.println("");
}


void loop() {
  if (irrecv.decode(&results)) {
    Serial.println(results.value, HEX);
    dump(&results);
    irrecv.resume(); // Receive the next value
  }
}
3

how sure are you that the remote sends the same frequency the receiver accepts?
Any data sheets? BTW, 38khz seems to be a common frequency used in remotes.

4

Post the model name of the IR receiver.
also try a diffrent remote.

5

Thanks for answers. :slight_smile:

I buy a kit, so the remote and the battery are news (i think).

And I also tried with others remotes, same result.

Sometimes, it's work... 5%.

Maybe the IR Receiver is damaged ? :frowning:

6

Can you provide a link to the kit?

7

I bought one like this, expecting to have problems with it - but it worked 'out of the box':

http://www.ebay.co.uk/itm/IR-Receiver-Module-Wireless-Remote-Kit-Arduino-/220820431320?pt=LH_DefaultDomain_3&hash=item3369ec61d8#ht_638wt_892

(I don't think it was from this seller, though.)

Jim