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ESPHome Daikin S21
FirmwareConnect S21 air conditioners directly to Home Assistant
This ESPHome component connects an ESP32 to the indoor unit’s S21 serial port. It publishes climate controls and available temperature, fan and operating sensors directly to Home Assistant, a home automation hub.
You need an interface with the correct signal levels and power regulation. The maintainer’s CTXS07LVJU, FTXS12LVJU and FTXS15LVJU units are tested, but features such as Powerful, Econo and demand control depend on what each unit exposes over S21.
- Control your Daikin without Daikin's cloud
- Use your Daikin in your smart home
- Tune your comfort and energy use with your own rules
- External temperature reference
- Per-mode temperature offsets
- Optional louvre position control
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