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DIYLESS
2025.01.25

OpenTherm Thermostat firmware v2.2

A new v2.2 is ready to download.

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DIYLESS
2025.01.18

Shop Update

We have got a new products available in our shop. From now on you can buy a soldered versions of the master / ESP thermostat shields. They are functionally the same as their unsoldered counterparts.
Also, we provide an Europe-wide DHL Express shipping or parcel locker / parcel point delivery to some EU countries.

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DIYLESS
2024.12.05
ESPHome

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.