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 31, 2026
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 31, 2026
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
