Compact ESP32-based DIN-rail automation controller with RS-485 Modbus RTU master, 1 relay output, 1 isolated 24V digital input, dual 1-Wire bus for DS18B20 temperature sensors, USB-C, on-board RTC and external Wi-Fi antenna. Ships pre-flashed with ESPHome for instant integration with Home Assistant. Ideal for fireplace and heating automation, energy metering, and DIY industrial control.

Industrial-grade DIN-rail ESP32 PLC for smart home and professional automation. Combines onboard digital, analog, relay and temperature I/O with Wi-Fi, Ethernet and RS-485 Modbus RTU master/slave. Ships with ESPHome pre-installed for instant Home Assistant integration. Supports YAML packages for HomeMaster expansion modules (DIO, AIO, WLD, ENM, RGB) and works as the central controller in fireplace, HVAC, lighting and energy monitoring projects.