IR sensor + remote giving trash data signals

Other Hardware Sensors
1

Hello,
I have an IR-sensor module wired up that came with a remote.
Problem is that the serial monitor spits out very random data when i press any button, also a different message everytime i press the same button. I used my TV-remote, other peoples codes and also tried it in a dark room to omit all light, but always the same story. Just random messages like:
DBE32B75
7E1F9A15
13DB9E7A
3F47B298
The library i use: IRremote - Arduino Libraries
Anyone got any idea why this happens?
Please let me know!

2

The problem will either be in the code that you have not posted or in the circuit that you have not posted a schematic of

1 Like
3

Well gimme the gist then:

#include <IRremote.h>
#include <IRremoteInt.h>
int dataPin = 2;
IRrecv receiver(dataPin);
decode_results results;

//__________________________________

void setup() {
  Serial.begin(9600);
  receiver.enableIRIn();
}

//__________________________________

void loop() {
  if (receiver.decode(&results)) {
    Serial.println(results.value, HEX);
    receiver.resume();
  }
}

Afbeelding van WhatsApp op 2024-02-12 om 18.16.10_77daec34
Afbeelding van WhatsApp op 2024-02-12 om 18.16.10_77daec341200×1600 165 KB

4

Looks like a somewhat outdated example.

Here is one with a current IRRemote library:

5

Sorry but I can't do anything with this code/library. I'm very new to programming so imma keep my hands of cpp for a while, also I just want to receive consistent data corresponding to the remote inputs. How do you mean outdated? The library? the code?

6

The code you posted uses library instructions that are outdated.

On this page you will find a complete documentation of the library:

1 Like
7

Thank you so much! I have been playing around with the updated library instructions and it seems to at least give me the same value every time. Still not the full data message I was looking for so i'll be working on that but at least you fixed the main issue.

8

If anyone has the same issue as I had, here is the working code (simplest possible version of IR sensor reception) with the updated library protocol

#include <IRremote.hpp>
IRrecv receiver;
int sensorDataPin = 2;

void setup() {
  Serial.begin(9600);
  receiver.begin(sensorDataPin);
}

void loop() {
  if (receiver.decode()) {
    Serial.println(receiver.decodedIRData.command);  // , hex); if preferred 
    receiver.resume();
  }
}
9

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