12V DC relay switch

[Kees_van_Gelder]

yes, you can control all the individual GPIO pins from openhab. Add a a cheap relay board and you are set

Simple GPIO example

I have been mostly using openhab via MQTT commands to Arduino’s and ESP8266’s but ofcourse have been eying the mainly unused pins on my Raspberry Pi. In all honesty however, when I glanced over the various articles dealing with the use of GPIO pins, I got dizzy But there is no way but forward, so i decided to just give it a try. It turned out to be much easier than I thought. First of all, install the GPIO binding in the PaperUI. After one has done that, there isnt really much e…