Tag - Edge Gateway
Building an ESP32 Modbus-RTU bridge is not mainly about connecting a MAX485 board. The real issues are RS485 electrical design, UART ownership, polling cadence, and the operational boundaries of ESPHome modbus_controller. This article explains how to bridge PLC data into ESPHome and Home Assistant more reliably.
Blog, IoT Protocols and Interoperability , March 24, 2026 , Edge Gateway, ESP32, ESPHome, Home Assistant, Industrial Bridge, IoT integration, Modbus RTU, PLC, RS485, UART
What is OPC UA FX and how does it improve industrial interoperability? Learn how it works, how it compares to MQTT, and when to use it in industrial IoT systems.
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