Configurator, firmware & documentation
Everything for your HomeMaster devices in one place. Configure modules over USB-C, download firmware, and open datasheets, schematics and declarations of conformity — for the PLCs, the OpenTherm gateway and every module.
WebConfig needs desktop Chrome, Edge, Opera or any Chromium browser. Firefox only on Nightly with the Web Serial flag. Not supported in Safari.Controllers & Gateway

MiniPLC
ESP32 Programmable Logic Controller (USB / Ethernet).
MiniPLC ESPHome firmware (YAML)Documents & resources

MicroPLC
Compact ESP32 PLC for DIN-rail automation.
MicroPLC ESPHome firmware (YAML)Documents & resources

OpenTherm Gateway
Smart boiler controller using the OpenTherm protocol.
OpenTherm Gateway ESPHome firmware (YAML)Documents & resources
Configurable modules

Analog I/O
High-precision analog I/O for HVAC, environmental monitoring and control.
Open WebConfigAll versions & firmware
Documents & resources

Alarm I/O
Alarm I/O for intrusion detection, fault annunciation and local supervision.
Open WebConfigAll versions & firmware
Documents & resources

AC Dimmer
Dimming of AC loads via leading / trailing edge phase control.
Open WebConfigAll versions & firmware
Documents & resources

Digital I/O
Digital input monitoring and relay output for lighting, HVAC and alarms.
Open WebConfigAll versions & firmware
Documents & resources

Energy Meter
3-phase power quality and energy metering.
Open WebConfigAll versions & firmware
Documents & resources

RGB + CCT LED
RGB and tunable-white LED controller for Modbus RTU networks.
Open WebConfigAll versions & firmware
Documents & resources

Leak & Water
Leak detection, water-flow metering, heat-energy monitoring and irrigation.
Open WebConfigAll versions & firmware
Documents & resources

Stair LED Controller
Stairway LED controller: 32 dimmable outputs, 3 isolated inputs, 4 buttons.
Open WebConfig