Modbus RTU Master tests with Arduino via RS232 Part 2 – PDAControl
Modbus RTU SD Read & Write with - Hackster.io
GitHub - ethicstechOSS/Modbus-Slave: A library that allows your Arduino or MSP to communicate via Modbus protocol, acting as a slave. Supports serial (RS-232, RS-485), LoRa RN-2483 and IP via Ethernet (Modbus IP).
Introduction to Modbus using LabVIEW - NI
GitHub - CMB27/ModbusRTUSlave: A library for Arduino enabling Modbus RTU communication
Tutorial - Come realizzare Comunicazione MODBUS RTU con S7-1200 con esempio applicativo - Domenico Madeo
FieldTalk Modbus Master C++ Library / RTOS Edition