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ESPAltherma
FirmwareKeep detailed Altherma readings on your own network
ESPAltherma reads the heat pump’s internal diagnostic registers through X10A and sends selected readings to a local MQTT broker. Home Assistant, a home automation hub, can keep temperatures, currents, operating states and other available measurements in your own history.
The stable version needs an ESP32 or ESP8266 and the register definition for your unit. Stable serial support is monitoring-only, with optional relays for heating, cooling or smart-grid contacts; the newer browser-installed version 2 is explicitly beta.
- Control your Daikin without Daikin's cloud
- Use your Daikin in your smart home
- Keep your energy and performance history
- Tune your comfort and energy use with your own rules
- Refrigerant and water temperatures
- Compressor and operating readings
- Optional thermostat and smart-grid relays
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Also works with ROTEX and Hoval
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