HmiFuncDesigner是一款集HMI，数据采集于一体的软件。目前支持Modbus协议，JavaScript解析，画面功能编辑等。HmiFuncDesigner is a software integrating HMI and data collection.Now it supports Modbus protocol, JavaScript explain, graphic control edit etc.

Qt SerialPort-UDP-TCP-WebSocket-Modbus-CAN-BLE-Assistant.

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.

Modbus library for RTU, ASCII and TCP protocols. Primarily developed on and for ESP32 MCUs.

A C++ Library for Modbus TCP Client Protocol

Firmware replacement for Growatt ShineWiFi-S

emulates Hoermann HAP 1 HCP (HCP2) on ESP8622, ESP32 and Arduino.

A Modbus RTU (RS-485) to MQTT Gateway (based on ESP32)

EPICS support for communication with Programmable Logic Controllers (PLCs) and other devices via the Modbus protocol over TCP, serial RTU, and serial ASCII links

Wiren Board MQTT serial protocol driver

ESPHome component to monitor a Seplos Battery Management System (Seplos-BMS) via UART or RS485

Flexible, Arduino Mega/Due/ESP8266/ESP32/STM32 based SmartHome controller with DMX-512 in/out, 1-Wire, Modbus, MQTT interfaces. OpenHab/HomeAssistant/ioBroker compatible.

ModbusScope logs data for analysis using the Modbus protocol.

Qt实现的Modbus串口调试助手---Qt implementation of Modbus serial debugging assistant

MQTT gateway for modbus networks

Open ModScan is a Free Modbus Master (Client) Utility

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

Modbus library for modern C++

A lightweight framework for MODBUS RTU nodes in STM8 eForth that can do more than just I/O

Modbus master and slave implementation in C++