LIRC GPIO support configuration

Help and Support Raspberry Pi
1

What is a convenient way to enable only LIRC GPIO OUT for IR transmitting, but GPIO IN keep disabled (or better to disable OSMC react to IR signals)?

Purpose:
Self created mobile app with virtual “TV remote control”.
For example: when i press “volume up” button on my mobile app, the volume on TV should increase (but not on OSMC).

What is done:
raspberry pi 3 + IR transceiver remote shield for raspberry + OSMC
In OSMC interface i go to “Pi Config”=>“Hardware support”=>“Enable LIRC GPIO support”, it have set input (18) and output (17) gpio pins.
Then i had using “irrecord” to read signals from my TV remote control and created new LIRC config file.
Then i enabled this new config through OSMC=>“Remotes”
Then i created web interface that can accept request from mobile app and execute “irsend” commands to transmit IR signals

Problem:
For example: i want power off my TV with original remote control. I press “power” button and this IR signal is reveiced by both TV and raspberry, and both devices powering off. Similar problem when i press “power” button on my mobile app: web interface accept request, then transmit IR signal, that powering off raspberry instead of TV.

2

How about to just set input to any unused GPIO (eg 22) :wink:

3

and if nothing connected to pin 18 then is it possible that the remote press is making its way through to OSMC via HDMI-CEC? as a “Display Off” and then being reacted to?
If yes then you can disable that action in Kodi settings.

4

it’s possible, but I think that this is not a good idea:
if i connect some device in the future, that uses pin 22
if i will want to add additional remote control to the config, i must remember to revert lirc_gpio pin setting to default 18

it seems to me that would be better to somehow disable OSMC interface reaction to the IR signal, but keep IR transmitting functionality enabled

5

I’ve checked this. So no,
HDMI-CEC doesn’t send “Display Off/On” button action to OSMC