Pc + raspberry pi

1

Hello, I was wondering if there was anyway I can run openhab on Pc but still use the raspberry pi because of its GPIO

2

I have openHAB on a PC and have Domoticz running on the raspberry pi… A long way to do it but openHAB controls Domoticz which then controls the GPIO stuff.

3

There are many ways you could do it. Some of the more straightforward ways include…

  • Pi exposes an HTTP endpoint and OH queries with the HTTP binding
  • Pi pushes data to OH via the REST API
  • Pi pushes data to OH using MQTT
  • Pi publishes data using UDP; OH listens for it with the TCP binding
  • Pi exposes a TCP endpoint; OH queries it with the TCP binding
4

Yes you can, as explained by @steve1 but if you are using a pi only for its GPIO it can be cheaper adn more effective to replace it by an arduino, the arduino can talk to the PC by MQTT, REST, UDP or HTTP.

5

With an Arduino, using the serial/USB interface with the OH serial binding would also be a good option (no need to have a additional networking hardware). Of course, this assumes that the Arduino is physically close to the PC.

1 Like
6

Absolutely. To add one more example, I have two Raspberry Pis with reed sensors and relays wired to the GPIO pins. I activate the relays from OH by using WebIOPi’s REST API and the Pis report the reed sensor status to OH using MQTT.

I’m about to add a camera to one of the Pis and a water sensor to the other.

My OH server is running on an old laptop running Ubuntu.