OTGateway is a powerful open-source solution for controlling OpenTherm-compatible boilers, turning your heating system into a smart one. Set the perfect temperature, save on energy bills, and eliminate unnecessary hassle — integration with Home Assistant makes heating management simple and automated.

esp32 esp8266 home-assistant home-automation homeassistant hvac-control mqtt opentherm opentherm-gateway smarthome thermostat thermostat-controller
1 Open Issue Need Help Last updated: Jul 6, 2025

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Home Automation Heating Control

AI Summary: The task is to enhance the OTGateway project by adding a modular configuration option for external relays or actuators. This involves creating a generic GPIO-controlled switch, initially configured for an external pump but reconfigurable for other devices via Home Assistant/MQTT integration. The goal is to allow users to control multiple devices independently, improving flexibility and reducing the need for additional smart sockets.

Complexity: 3/5
help wanted question

OTGateway is a powerful open-source solution for controlling OpenTherm-compatible boilers, turning your heating system into a smart one. Set the perfect temperature, save on energy bills, and eliminate unnecessary hassle — integration with Home Assistant makes heating management simple and automated.

C++
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