Module Entrées/Sorties analogiques OTG-001

The HomeMaster OpenTherm Gateway is a DIN-rail heating controller for Home Assistant. It connects to your boiler via OpenTherm for full modulation control, or switches it via relay if OpenTherm is not available. Two 1-Wire temperature inputs let you monitor flow, return, buffer tank or room temperatures. The relay output controls auxiliary equipment — zone valves, circulation pumps, or two-way and three-way valves.

Built on ESP32 with ESPHome pre-installed. 100% local. No cloud. No subscription.