ISYSTEMS AUTOMATION, Dmitry Drezyulya RGB-621-R1 firmware v0.3.0 — the light no longer drifts after a command Current firmware for the RGB+CCT lighting module. Fixes colour and brightness drifting away seconds after a Home Assistant command: the state block now reports the commanded level instead of a mid-fade value, and the ESPHome package no longer rebuilds the light entity from its own echo. Note that this update resets the module to factory settings, including its Modbus address. Sep 28, 2026 News
ISYSTEMS AUTOMATION, Dmitry Drezyulya AIO-422-R1 firmware v0.2.0 — RTD correction, AI3/AI4 fix, and a faster Modbus map Current firmware for the analog I/O module. Fixes a wrong RTD reference resistor that could show −117 °C, corrects swapped AI3/AI4 terminals, expands button and LED options, and adds a contiguous input-register poll for ESPHome. Jul 30, 2026 News
ISYSTEMS AUTOMATION, Dmitry Drezyulya Firmware update: encrypted API and a provisioning window for MiniPLC, MicroPLC and OpenTherm Gateway Firmware 1.2.0 for the three Wi-Fi modules encrypts the Home Assistant API with a per-device key, closes the setup window after 15 minutes, and removes the open fallback access point. Requires ESPHome 2026.7.0 or later. Jul 23, 2026 News
ISYSTEMS AUTOMATION, Dmitry Drezyulya ENM-223-R1 firmware v0.2.0 released — CT ratios, flexible wiring, richer metering The HomeMaster ENM-223-R1 three-phase energy meter gets its biggest firmware and WebConfig update since v0.1.0. v0.2.0 turns the module from a fixed meter into a configurable metering device — it scal... Jul 21, 2026 News