Weird behavior of Dimmer in combination with a Generic MQTT Thing

[rossko57]

You might find this discussion illuminates your difficulty.

OH3 Dimmer item to MQTT channel

I’m running OH3 3.2.0.M4 on a RPi 3. I’ve come from OH2 (and 1), and am trying to work out how to do most of my implementation in the GUI, by starting with a fresh install and creating my items afresh. I have a digital clock, which takes an MQTT channel as a brightness parameter, between 0 (off) and 15 (max). I have created a brightness dimmer item and linked it to the channel. In the channel’s advanced options I’ve set the absolute min / max to 0/15. When I change the dimmer it sends the M…

A Dimmer Item has a percent type state / command, which is not just a number.