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ESPHome OpenTherm Thermostat
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ESPHome OpenTherm Thermostat

In today’s smart home revolution, thermostats play a key role in optimizing energy use and maintaining comfort. While there are plenty of ready-made options, building your own thermostat is an exciting alternative. The DIYLESS Thermostat offers a perfect blend of flexibility and affordability, making it an excellent choice for enthusiasts. When paired with the versatility of ESPHome firmware, it unlocks endless possibilities for customization, ideal for tech-savvy DIYers.

ESP32 Tasmota OpenTherm Thermostat BLE
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ESP32 Tasmota OpenTherm Thermostat BLE

In the previous article we have created a simple opentherm enabled thermostat which uses an internal temperature sensor and controls boiler temperature to reach more comfort without indoor overheating and thus reducing gas bill. However you might want to control heating in a room, than does not contain wall unit or wall temperature sensor. For instance you're upgrading heating system in existing house and no new wires can be installed. So let's use one of the Xiaomi's fancy BLE-enabled temperature sensor to help improve your heating automation.

OpenTherm Thermostat Shield
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OpenTherm Thermostat Shield

There's a variety of OpenTherm thermostats out there. Most smart thermostats cost from €100 to €300, which is quite expensive. This article describes how to build your own smart OpenTherm Thermostat with remote control for a cheap price and without any monthly costs.

We provide a simple solution, which gives you ability to integrate thermostat into your favorite home automation system, like Home Assistant, Domoticz, Blynk, Tasmota and so on... In general, it allows you to control not only boilers and domestic water heaters, it can be used with heat pumps and ventilation systems which has OpenTherm protocol support. This is a custom solution, so you can implement the best smart thermostat for your situation.

ESP32 tasmota OpenTherm Thermostat
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ESP32 tasmota OpenTherm Thermostat

Today we will build a simple OpenTherm Wi-Fi thermostat using ESP8266 Thermostat Shield and Tasmota automation system

ESP32 Wi-Fi OpenTherm Thermostat
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ESP32 Wi-Fi OpenTherm Thermostat

This article describes how to build simple OpenTherm Wi-Fi thermostat using ESP32 WebServer and ESP8266/ESP32 Thermostat Shield. So you can replace traditional room thermostat and control and monitor your boiler remotely via Wi-Fi using web browser on smartphone or personal computer.

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OpenTherm Thermostat Tasmota Home Assistant Wi-Fi BLE Blynk DIY Domoticz ESPHome Gateway
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