Home Automation Domotica Forum Europe, Bwired Forum

Hi, The OTGW device from the nodo-shop is somewhat different. The OTGW code is there running on the microcontroller on the board itself. The extra wifi option with esp8266 is only to control that microcontroller. However, this wemos shield requires you to 'talk' opentherm yourself (using the librar...

I appreciate your help! I have a programming background, but I'm a newbie when it comes to connecting hardware. Can I use each slave connection the same way as the OTGW from the nodo-shop that I have? I like the way I can create a "Device" of the roomtemp and room setpoint. Also override s...

Hi, To read opentherm data from opentherm compatible thermostats you need a opentherm slave. There are a few solutions for this, all based on the original design from Schelte Bron. Mine (on that tindie link) is a simple slave module as a shield on top of a Wemos/Lolin ESP8266 board and it works jus...

There is standard 1 opentherm thermostat connected to the boiler and/or otg I know I can't easily use the modulation capacities of the protocol with multiple thermostats. But perhaps i still can use the protocol to read roomtemp and setpoint of several thermostats and override (reset) their set-poi...

Hello, I would like to realise a DIY multi-zone heating system with the combination of several OT thermostats, electric valves and a Raspberry Pi running Domoticz. Basically I want to open a valve when a zone requests heat. And start the boiler when one or more zones request heat. The opening of val...

Hello Antst, Im interested! I have a similair multizone project where I want to use several OT thermostats and valves in all contected to a raspberry pi. I ordered an open therm gateway in order to communicate with the boiler and one thermostat but im wondering how I should read (and send to) multip...