How to connect generic PIRs to OpenHAB?

[vzorglub (Vincent Regaud)]

OK, it seems that you have decided to go with the sonoff solution.
I recommend that you flash that Tasmota firmware on them.

But make sure that you have a good Wifi router in the house. Poor wifi connections reduces the sonoff lifetime and they will fail.

GitHub - arendst/Tasmota: Alternative firmware for ESP8266 and ESP32 based...

Read the MQTT for openhab docs and 101:

https://www.openhab.org/addons/bindings/mqtt1/

MQTT Binding (v1.11) Getting Started 101

After countless threads regarding initial configuration issues, here is a short guide on how to get started with MQTT, the MQTT binding and openHAB. This thread is a wiki article and can be improved by everyone. Please do! MQTT is a machine-to-machine (M2M)/“Internet of Things” connectivity protocol. It was designed as an extremely lightweight publish/subscribe messaging transport. A few resources first: Read all you ever need to know about MQTT in the MQTT Essentials The openHAB MQT…

And finally this one:

ITEAD Sonoff switches and sockets - cheap ESP8266 Wifi+MQTT hardware

ITEAD Smart Home Products https://www.itead.cc/wiki/Sonoff_Smart_Home_Solution [image][image][image] These very cheap modules come with their special smartphone app but are all actually based on the famous ESP8266. It didn’t take long till the tinkerer community got a hold of that and started hacking. After opening up the cases, all you need to do is solder a few header pins and connect your FTDI breakout programmer. Alternative firmwares are ready to provide nice MQTT based Wifi SmartHome end…