I would like to controll that Raspberry Pi 4’s GPIOs which one is running the home assistant system. Is this possible?
Support for Raspberry Pi GPIO pins has been dropped. There were a couple of users who picked up the old code and forked it, but last I knew neither one was getting a lot of support.
I gave up and use ESP8266 boards for GPIO sensing. You can obviously use an ESP32 instead, but I had some 8266s laying around and they’re more than powerful enough for this simple task.