A DIY smart thermostat for 120V fan coil systems has been developed using an ESP32 and ESPHome firmware, addressing a gap in the market where standard smart thermostats are not compatible. This innovation is crucial for tech-savvy homeowners with 120V HVAC setups who seek to automate temperature control efficiently. Developers interested in IoT projects should keep an eye on similar open-source initiatives that enhance home automation without requiring extensive modifications.
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