LIRC sending error transmission failed

Question

I am trying to set up and send IR-Signals with my Pi using LIRC I was already able to receive signals and to configure them as a remote device. I followed this tutorial : https://gist.github.com/prasanthj/c15a5298eb682bde34961c322c95378b and added the following lines to my /boot/config.txt

dtoverlay=gpio-ir,gpio_pin=22
dtoverlay=gpio-ir-tx,gpio_pin=23

but when I try

irsend SEND_ONCE nameOfRemoteConf KEY_POWER

I get this error

transmission failed
Error running command: Input/output error

I tried some troubleshooting but nothing worked for me could it be that there is something wrong with the IR transmitter or its pinning?

My answer to the following problem might help: https://raspberrypi.stackexchange.com/questions/108053/problem-with-pigpio-library-and-infrared-emitter — tlfong01, Feb 06 '20 at 01:42
Or this answer of mine: https://raspberrypi.stackexchange.com/questions/103452/rpi3-lirc-library-and-uart-ir-transceiver-setup-problem — tlfong01, Feb 06 '20 at 01:44
Does this answer your question? Raspberry Pi 3 not lirc not running/working — Ingo, Feb 06 '20 at 09:21

spraysparks · Answer 1 · 2022-09-26T15:26:47.663

0

Try to remove CONST_LENGTH flag in the config file
Change RAW_CODES|CONST_LENGTH to RAW_CODES

edited Sep 26 '22 at 15:26

answered Sep 26 '22 at 15:24

spraysparks

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LIRC sending error transmission failed

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