Voltlog has designed an open-source hardware floor heating valve controller powered by an ESP32 WiFi module making it compatible with Tasmota open-source firmware, and by extension MQTT protocol and Home Assistant automation framework.
The board can control up to 10 valves triac controlled outputs and spring connectors for a floor home heating system, and also offers a one-wire srping connector, an I2C header, and safety features with two fuses, although it’s obviously not UL nor TUV certified.
The KiCad hardware designed files are available on Github, and Voltlog explains more about the hardware design, including why the isolated AC/DC transformer is weirdly installed, as well as the whole reasoning for his design choices and the software used.
The “Tasmota ESP32 Floor Heating Valve Controller” is available on Tindie for $109.99, but there seems to be only one in stock at this time.
Via Hackster.io
Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.
Yeah, a cool idea buut.. I wouldn’t dare using it in my house.. non-certified could render my insurance null and void..
To achieve the same I use “Heatit Z-Water” by ThermoFloor which is a Z-Wave Plus (868.4 MHz and 24V-230V) regulator with 10 relay outputs to control actuators myself which cost about €300 in Europe, also sold rebranded as ZIF5031 by Logic Group (formerly Logic Soft and Logic Home Control). So cost a lot more but it is CE certified and works with most Z-Wave controllers including open source solutions based on Z-Wave JS and OpenZWave which include Home Assistant.
https://heatit.com/product/9286/smart-products/relays/heatit-z-water/1115
https://logic-group.com/product/zif5031/?lang=en
Cool idea and good job! I have just tested it in my home and it works very well.