MQTT in OH3.2 cannot get it running

[hafniumzinc (T)]

I configuration manually so have never used auto discovery, but make sure you have the correct transformations installed in openHAB. From the documentation:

The HomeAssistant MQTT requires two transformations to be installed:

JINJA-Transformations
JSONPath-Transformations
These can be installed under Settings->Addons->Transformations

Here’s a post you may have come across when searching the forum:

[OH3] Tasmota via MQTT Autodiscovery (Tasmota Version earlier than v12.1.1)

Update 2022/09/26 !!! Attention !!! With Tasmota version 12.x and later, HomeAssistant Autodiscovery is removed from Tasmota in favour of a new Tasmota-Autodiscovery. At the moment this is not compatible with OpenHAB. It is still possible to add channels manually, but to use HomeAssistant Autodiscovery your only chance is to use an older Tasmota version up to 11.1.0 [OH3] Tasmota via MQTT Autodiscovery This tutorial is meant to show how to setup openHAB3 and Tasmota with HomeAssistant Autod…