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-HID-BLE-UDP-TCP-WebSocket-Modbus-CANBus-MQTT debugging tool, which support custom lua, javascript, chart view and data transmitting...

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

Open ModScan is a Free Modbus Master (Client) Utility

NetXMS - Open Source network and infrastructure monitoring and management

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

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

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

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

ModbusScope logs data for analysis using the Modbus protocol.

Wiren Board MQTT serial protocol driver

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

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

MQTT gateway for modbus networks

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

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

Open ModSim is a Free Modbus Slave (Server) Utility