Alternative firmware for ESP8266 and ESP32 based devices with easy configuration using webUI, OTA updates, automation using timers or rules, expandability and entirely local control over MQTT, HTTP, Serial or KNX. Full documentation at
European boiler and air-conditioning manufacturers started about the year 2000 to switch to the Openthermbus/protocol to control their devices.
This circuit interfaces a microcontroller with an OpenTherm device. Adding OpenTherm-support in Tasmota allows to control boilers and air-conditioning units via MQTT.
European boiler and air-conditioning manufacturers started about the year 2000 to switch to the Opentherm bus/protocol to control their devices.
This circuit interfaces a microcontroller with an OpenTherm device. Adding OpenTherm-support in Tasmota allows to control boilers and air-conditioning units via MQTT.