Tag - RS485
NetAssist, CoolTerm, and Modbus Poll solve different debugging problems. Use CoolTerm for raw serial logs, NetAssist for quick TCP/UDP or pass-through checks, and Modbus Poll for register validation and Modbus exception diagnosis.
Blog, IoT Protocols and Interoperability, IoT Tools and Platforms , May 19, 2026 , CoolTerm, Industrial Debugging, Modbus, Modbus Poll, NetAssist, RS485, Serial Debugging
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