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pi-mqtt-gpio
Expose GPIO modules (Raspberry Pi, Beaglebone, PCF8754, PiFace2 etc.) and digital sensors (LM75 etc.) to an MQTT server for remote control and monitoring.
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WorkOS
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I have the raspberry pi just running rasbian. I'm using pi-mqtt-gpio to expose the GPIO to MQTT, which then allows HA to pick them up and control them. I went through a few iterations trying to get that to work, including using the remote_pi_gpio integration, but had problems with it. With the integration, every time the pi restarted, HA would need to be restarted to re-establish the connection, and there were times that the GPIO settings on the pi would get reset and HA would lose them. With the pi-mqtt-gpio, it's been way easier and way more stable. I can boot the pi or HA in either order and the connection will still come up every time I've tried. If you're going to do remote gpio with a pi, I definitely recommend it. The MQTT integration in HA picks up the gpio automatically, so there's no HA configuration to be done. My pi-mqtt-gpio configuration: https://imgur.com/imTnUvX