OpenTherm Gateway shield will allow you to monitor and control your heating boiler.Designed by Jiří Praus, Ships from Czechia
Have you ever wondered when and why is your boiler running and heating your home? Do you want to automate your heating system with Arduino? The OpenTherm shield is designed for you. It will allow y...Read More…
Have you ever wondered when and why is your boiler running and heating your home? Do you want to automate your heating system with Arduino? The OpenTherm shield is designed for you. It will allow you to monitor and control your OpenTherm boiler with Arduino.
OpenTherm is simple protocol implemented on 2-wires bus allowing boiler and thermostat to communicate. They exchange various information including status, temperatures and set points. The protocol is easy to read and with this shield you can easily get or alter all the available information.
* note that these are available only if your boiler is equipped with necessary accessories
Every boiler that supports OpenTherm+ is supported. See your boiler manual for OpenTherm capabilities. There is a slight chance that your boiler won't be compatible due to manufacturer's customization of OpenTherm protocol.
I wrote an Arduino library to create a simple API over the OpenTherm protocol. It contains examples for all the listed modes and it will allow you to easily start programming your own application. More information on a github.com project page. The library is available in the Arduino libraries store.
OpenTherm shield requires an external 24V 500mA DC power supply which is not included in the kit.
All the information on how to get started are available on github.com project page
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