Modbus guides
Practical, field-tested guides for technicians and integrators.
Modbus with Arduino and Raspberry Pi: What's Possible and Wiring
Arduino vs Raspberry Pi for Modbus RTU and TCP: which board fits which job, MAX485 wiring, working master and slave code, Pi setup, and common mistakes.
Modbus RS-485 Wiring: A Practical Guide for Field Technicians
How to wire Modbus RTU over RS-485 correctly: A/B naming, common wire, daisy chain, 120 Ω termination, biasing, serial settings and a troubleshooting table.
Build a Modbus Data Logger with a Raspberry Pi (TCP and RTU)
Turn a Raspberry Pi into a 24/7 Modbus TCP/RTU data logger with a web dashboard, CSV logs and automatic restart after power cuts. Parts, wiring and setup.