KNX5

After every Home Assistant restart my KNX thermostats fell to 'standby' and stopped heating. Here is the homeassistant-start automation — with the crucial 30-second delay and a choose block — that re-initialises every thermostat to the correct mode.

A reproducible Home Assistant automation: a KNX window contact switches that room's thermostat to building_protection (frost guard) when it opens and back to comfort when it closes — with a 5-second debounce that stops the false triggers most tutorials ignore.

Why your KNX thermostat ignores the temperature you set in Home Assistant — the five HVAC preset modes, the snap-back that looks like a bug, and how I automate them.

Making KNX motion sensors drive lights that feel like the room is paying attention — the real trick is one extra group address, not a cleverer trigger.

I didn't want Home Assistant to be a slave to the JUNG alarm panel. So I inverted ownership: HA owns the alarm state and pushes it back onto the KNX bus.