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
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?