EMS-ESP is a open-source system built for the Espressif ESP8266 microcontroller to communicate with EMS (Energy Management System) based boilers, thermostats and other modules from manufacturers like Bosch, Buderus, Nefit, Junkers and Sieger.
- Supporting more than 50 EMS devices (EMS 1, EMS 2.0/Plus and Heatronics 3).
- A web interface for easy configuration and real-time monitoring of the EMS bus.
- Telnet for advanced configuration and verbose traffic logging.
- Configurable MQTT, with templates for Home Assistant and Domoticz.
- Includes an simple schematic for a test breadboard interface board.
- Native compatibility with bbqkees' EMS Gateway interface board.
Please reference the Wiki for further details and instructions on how to build and configure the firmware.
If you like EMS-ESP buy me a ☕ via PayPal.
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