DIN-rail relay and digital input module for Home Assistant and ESPHome. Three SPDT dry-contact relays rated 3 A at 250 V AC per channel and four IEC 61131-2 compliant 24 V digital inputs for wall buttons, door contacts and auxiliary contacts. Modbus RTU slave on RS-485, configured over USB-C from a browser. Input-to-relay mapping and press logic run on the module and keep working when the controller is unavailable.

DIN-rail stair lighting controller for Home Assistant and ESPHome. Thirty-two low-side MOSFET channels rated 1.5 A each drive one 12 or 24 V LED step per channel, each individually dimmable with 8-bit brightness on Modbus holding registers 400-431, and two presence-sensor inputs detect direction of travel. Modbus RTU slave on RS-485, configured over USB-C from a browser. The step sequence is written on the controller.

DIN-rail RGB and tunable white LED controller for Home Assistant and ESPHome. Five low-side PWM channels - red, green, blue, cool white and warm white - for 12 or 24 V common-anode strip, with 12-bit gamma-corrected dimming exposed on Modbus as both 0-255 and 0-4095. One dry-contact relay rated 3 A at 250 V AC switches the strip supply, and two IEC 61131-2 compliant 24 V inputs take wall buttons. Modbus RTU slave on RS-485.

DIN-rail digital input module for Home Assistant and ESPHome. Seventeen opto-isolated inputs with 5300 VRMS isolation for door and window contacts, PIR detectors, leak sensors and tamper loops, plus three SPDT relays rated 3 A at 250 V AC. Isolated 5 V and 12 V rails power the sensor loops from the module. Modbus RTU slave on RS-485. Zone grouping and latch-until-acknowledge run on the module. Not a certified intruder-alarm system.

Three-phase DIN-rail energy meter for Home Assistant and ESPHome, built on an ATM90E32AS metering front end. Three voltage channels (85-265 V AC) and three current channels through external current-output CTs with a secondary of 60 mA RMS or less; voltage-output clamps of the 333 mV or 1 V class and 1 A or 5 A secondaries are not compatible. Two SPDT relays rated 3 A at 250 V AC for local load shedding. Modbus RTU slave on RS-485.

DIN-rail analog I/O module for Home Assistant and ESPHome. Four 0-10 V analog inputs on a 16-bit ADS1115, two 0-10 V analog outputs on a 12-bit DAC, and two PT100/PT1000 RTD channels on a MAX31865 with 2-, 3- and 4-wire support. 4-20 mA transmitters are read through an external 500 ohm shunt fitted across an analog input. Modbus RTU slave on RS-485, configured over USB-C from a browser.

DIN-rail water leak detection and metering module for Home Assistant and ESPHome. Five identical universal isolated inputs, each configurable as a leak sensor, a soil-moisture probe or a pulse water meter, plus a 1-Wire bus for temperature probes and two SPDT relays rated 3 A at 250 V AC for shut-off valve control. Modbus RTU slave on RS-485. Heat-energy figures are indicative for monitoring and are not approved for billing.

DIN-rail phase-cut AC dimmer for Home Assistant and ESPHome. Two independent MOSFET channels with leading or trailing edge selectable per channel, and four IEC 61131-2 compliant 24 V inputs for wall buttons with short, long, double and short-then-long press logic. Modbus RTU slave on RS-485, configured over USB-C from a browser. Local dimming continues when the controller is unavailable. See the datasheet for load ratings and derating.