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ESPHome-Radiante-Actuator-Controller

An open-source ESP32-S3/ESPHome 7-zone radiant heating controller with valve-feedback pump interlock, score-based failsafe logic, and real-time TFT monitoring.

Grace_Koo

Published March 06, 2026

Original author: tanaesOriginal source (new tab)

ESPHome-Radiante-Actuator-Controller

Components

Hardware components Software Apps and online services

WIZnet parts

Project description

Implementing Radiant Floor Heating Control with Open Source: ESPHome 7-Zone Controller and W5500 Expandability Introduction: Beyond "On/Off" — Safe and Reliable Heating Control Radiant floor heating control doesn't end with simple relay switching. For stable real-world operation, the system must verify that valves actually open, protect the pump, detect sensor anomalies, and respond automatically. This open-source project implements an ESP32-S3-based 7-zone heating controller using ESPHome, bringing the following together in a single architecture: Per-zone independent temperature control…

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