openHAB - Dirk-Jan's log

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openHAB

A collection of 4 posts

Home automation

MQTT and openHAB adventure

Some people asked me to share my MQTT setup in regard to openHAB [https://vleeuwen.net/2016/01/opentherm-gateway-for-the-win#comments] and I agreed to do so. In this blog post I will explain and describe in more detail my current setup primarily on the heating subject. But first some background

Fixing runaway setpoint value

Home automation

Fixing runaway setpoint value

It’s not really a fix. It’s better to speak of a workaround to correct the setpoint of the household thermostat which slowly shifts over time (see the graph above). I lack knowledge to fix the source, which is most probably the OTGW software. So I have created a

Opentherm Gateway for the win

Home automation

Opentherm Gateway for the win

At the end of last year the central heating system (including hot water) at home started to fail. Luckily it was not directly broken, but it slowly gave less and less heat, which was most noticeable while taking a shower, brrr. I was not totally unhappy then the maintenance guy

Home automation

Home heating setup using openHAB

Three weeks ago I finished my home build thermostat and heater control using openHAB [http://www.openhab.org/] and MySensors [http://mysensors.org/] and I am really pleased with the result so far. The set-up consists of two Arduino Pro Mini’s, one 3.3v for the battery powered MySensors