Explore My Hobby Projects

Most of my projects are connected to DIY Electronics, Internet of Things and Programming.

Last Projects Recently added

MQTT OpenTherm Thermostat

by Ihor Melnyk

Posted on Saturday, September 1, 2018 at 12:00 AM 1503


MQTT Thermostat

MQTT Thermostat is based on OpenTherm Thermostat, OpenTherm Library and ESP8266 controller (WeMos D1 Mini). Can be used for remote heating system control via nodeRED, openHAB, Home Assistant and Android Tasker etc.

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OpenTherm Thermostat

by Ihor Melnyk

Posted on Tuesday, July 17, 2018 at 12:00 AM 4048


OpenTherm Thermostat

OpenTherm Thermostat is based on OpenTherm Adapter, OpenTherm Library and ESP8266 controller (WeMos D1 Mini). So you can control your boiler remotely over WiFi via your smartphone.
Using OpenTherm protocol you will be able to:

  • get boiler status
  • set water temperature
  • switch on/off central heating
  • switch on/off hot water
  • get gas modulation level
  • ...and many other commands supported by OpenTherm protocol
Remote control feature is very useful when you returning back home after some holiday or just weekens and you don't want to get into cold home, so you can set temperature on the way home.

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OpenTherm Adapter

by Ihor Melnyk

Posted on Monday, April 2, 2018 at 12:00 AM 5724


OpenTherm Adapter

OpenTherm Adapter is minimized version of Arduino Controller and its compatible with 5V and 3.3V controllers like Arduino, ESP8266 or Raspberry Pi. OpenTherm Adapter allows you to control your boiler using your favorite controller via OpenTherm protocol which is implemented in OpenTherm Library. It is good for making your custom thermostat or for boiler remote control. Also OpenTherm thermostat can increase boiler efficiency comparing to usual on/off thermostat.

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Arduino OpenTherm Controller

by Ihor Melnyk

Posted on Tuesday, January 31, 2017 at 12:00 AM 14839


OpenTherm Arduino Mega Shield

From my point of view, home central heating system is one of the first thing, that should be managed by home automation system. Which allows you to create comfortable climate in your home regardless the outdoor weather, decrease usage of gas or electricity, save your money, and control your home heating whether you're out or on the sofa via laptop, smartphone or tablet.

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