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Polarfox

FLIRC unuseable - keys are recorded automatically

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Hi,

I've bought a FLIRC a few days ago for my HTPC. I installed the software V3.25.3 and updated the firmware to the newest V4.9.3.

When i start the software i select under "controllers" the "full keyboard". My remote control is a harmony 650, but for the problem this doesn't matter.

Now i click a key, for example the cursor up key. The software says "Press the button to be paired with 'up' ". After "a few seconds" the software send the message "recorded successfully" automatically.

This happens without pressing a key on my remote control!! And this is the problem. I can't record the FLIRC correctly.

When the time "a few seconds" is longer, then it's possible to record a key. The key works, but later in KODI the FLIRC does not work reliable. This means that some keys are working sometimes. I become crazy.

Then i explored the software an i've seen the device log and enabled the ir debugging.

Even though no key is pressed on the remote control some codes, for example ":e:68…" appears. They also appear when i press a key on the remote control, which i think is correct.

But in my case this happens too when no key is pressed on the remote control.

It's like FLIRC is receiving a ir-signal or it's not working correctly. Any idea?

Regards

Joe

 

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Are you by a window, or by a TV or under lights that may be fluorescent? If so, can you try recording in a different area?

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Hi,

"by a window": day or night it's the same behaviour --> i think that's not the problem

"by a TV": of course i have a TV near by HTPC :), a Philips TV with ambilight (LED-light). Do you think that this can be the problem?

"lights that may be flourescent": What do you mean with flourescent light?

 

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14 hours ago, Polarfox said:

Hi,

"by a window": day or night it's the same behaviour --> i think that's not the problem

"by a TV": of course i have a TV near by HTPC :), a Philips TV with ambilight (LED-light). Do you think that this can be the problem?

"lights that may be flourescent": What do you mean with flourescent light?

 

try in another room. Probably the lights. Let me know how that goes.

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TV in anohter romm .. puhh. I tried the following:

At night i switched off all the light in my room.

I installed the FLIRC software on a notebook and activated the logging mode to see, when FLIRC see something.

 

Then i searched for IR-signals. I received a lot of signals.

When i switched off my TV i don't detect IR-signals!

When i switch the TV on, the FLIRC software recognized again some IR-signals.

TV off, lights on: no IR-signals. It seems that the TV sends some light that the FLIRC is seeing.

Is this possible? I think many users who are using the FLIRC have a TV. I'am suprised about this behaviour.

Greetings from Germany

Joe

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It must be the backlight in your TV, it's emitting IR. Learn the signals with the TV off, and then it should ignore those spurious signals. Give it a shot, let me know.

 

 

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I learned the signals from my Harmony to the FLIRC with my notebook in another room. FLIRC is working correctly on my notebook. I checked this with the FLIRC software. Every click on my harmony is display on the on screen keyboard.

After that i  plug in the FLIRC in my HTPC. FLIRC is not working reliable. This means that some clicks on my Harmony works, but some not. When i look with the FLIRC software in device logging mode,  i see that FLIRC is receiving some signals.

Then i checked something else:

I connected the FLIRC again to my notebook. FLIRC software again in device logging mode. I put the notebook behind the TV. FLIRC now can see the backlight, but no signals are detected. When i move the notebook in front of the TV, signals are detected by the software. It seems to be the panel of the TV. Is this possible?

 

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Hi there

I have the same behaviour with a panasonic vieja TV.

Five month ago, i tried to setup FLIRC for my HTPC with Logitech Harmony Hub.

I gave up after some crazy sessions trying to configure the device.

 

Today i try to setup Flirc for Libreelec on PI4, same behaviour. The setup was impossible because of ghost events. FLIRC debug IR mode receive tons of signals.

I was becoming mad when i search for the device responsible of it, i finally try setup on laptop and not on HTPC and when i turned off my TV there was no more ghost IR signal received.

 

The odd thing is when there's no direct path between TV and FLIRC, it reflects on glass (windows, small table with glass on it, mirrors).

@Polarfox when Jason talk about backlight i think it's not light behind TV but a technique where a light straighten image behind front screen (so a light send towards you).

I will make setup with tv off and try to use FLIRC with TV on.

Then if FLIRC don't work correctly trying to put it in an opaque pipe to see if i can get it better.

Best regards

PS : TV model used is TX-P50VT30E

EDIT:

I just tried what i suggest above :

  • FLIRC Setup : OK with the pipe and TV ON
  • FLIRC Use with nothing : Fail, flirc unusable, 1 of 10 try on the same command is caught by the FLIRC, 0 received for some other commands.
  • FLIRC Use with a long pipe and a cover : OK, works perfectly even if remote is not exactly aiming directly into the tube

So i will think of smaller pipe to see if i can get it work.

@jason do you think of a way to ignore ghost events ? Is it possible to decrease FLIRC sensibility ? if not possible actually can it be a firmware improvment ?

Best regards

 

1-setupOkWithPipe.JPG

2-usageKOwithNoPipe.jpg

3-usageOKwithPipeAndCover.jpg

4-insidePipe.jpg

Edited by chafry
correction

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