Most complete Modbus library for Arduino. A library that allows your Arduino board to communicate via Modbus protocol, acting as a master, slave or both. Supports network transport (Modbus TCP) and Serial line/RS-485 (Modbus RTU). Supports Modbus TCP Security for ESP8266/ESP32.

Open ModSim is a Free Modbus Slave (Server) Utility

This is an Arduino library that implements the slave/server logic of the Modbus RTU protocol.

ModbusTools are cross-platform (Windows, Linux) Modbus simulator tools (client and server) with GUI to work with Modbus protocol (TCP,RTU,ASCII)

Examples for Canopus_RAK3172 board

Modbus master and slave implementation in C++

A basic Modbus TCP Master example written in C++ on the ESP32 hardware using the CAS Modbus Stack

Modbus TCP using W5500, based on STM32

Simple Modbus Slave library for Arduino MKR and MKR RS485 Shield

modbus tcp client that stores its data (registers) in shared memory objects

在子线程中实现与modbus服务端建立连接和通信

Streamline Modbus TCP communication on Arduino with the Modbus Bridge Library. Easily bridge coils and holding registers between devices, enhancing connectivity and simplifying integration for your IoT applications.

Library for Arduino for work on UART by the ModbusTCP protocol.

Async modbus server for esp

A simple modbus slave

Example for Modbus RTU, Modbus TCP/IP, MQTT run in ESP32 Canopus board

Library for working with Modbus devices.

Modbus RTU Slave/Master for the Arduino Platform

This repository shows how to implement Modbus RTU communication with ESP-32 Microcontroller

Modbus slave library for ESP8266-Arduino