Hello everyone,
some weeks ago I wanted to integrate my television as well as my hifi in my smarthome system(I am using FHEM for that). So first I installed lirc on my raspberrypi 3 (actually the model 3 is way to overpowered for this purpose) and connected an infrared transmitter/receiver to it.

The installation and setup of lirc was quite simple, I just had to follow these easy steps: https://www.instructables.com/id/Raspberry-Pi-Zero-Universal-Remote/.

To controll lirc with mqtt-commands I adapted this NodeJS-script:

App.js

Finally I added the mqtt-device to fhem and that’s it.
Have a great a day!