MQTTnet is a high performance .NET library for MQTT based communication. It provides a MQTT client and a MQTT server (broker). The implementation is based on the documentation from http://mqtt.org/.

SparkplugNet is a library to use the Sparkplug industrial IoT (IIoT) standard in .Net. It uses MQTTnet in the background.

The fastest Message Queue Telemetry Transport (MQTT) client for .NET.

This project is aimed at students learning IoT communication over MQTT, as well as teachers, and how to harden their implementations so they avoid most common mistakes and vulnerabilities when using MQTT.

IoT standard library, which defines various communication protocol standards and specifications in the Internet of Things field, without specific implementation. Used for IoT platform construction and unifying various hardware driver protocols. IoT标准库，定义物联网领域的各种通信协议标准规范，不含具体实现。主要用于IoT平台建设，以及统一各种硬件驱动协议。

Custom BLE, Modbus and other devices HomeAssistant .net core integration service

📦 nanoFramework MQTT Class Library

ThingsGateway is a cross platform high-performance edge acquisition gateway based on Net8, providing underlying PLC communication libraries, communication debugging software, and more.

Small Smart Home Showcase Example using the Arduino platform

A cross-platform OPC UA cloud command & control reference implementation leveraging MQTT and Kafka. It runs in a Docker container and executing commands, reads and writes on on-prem OPC UA servers from the cloud.

Azure Event Grid+ONNX+ML.Net integrations with Security Cameras processing images & video

Lightweight message bus interface for .NET (pub/sub and request-response) with transport plugins for popular message brokers.

使用.NET8 Aspire构建新一代云原生分布式物联网平台、边缘计算网关，整体采用云边协同事件驱动微架构，使用GRPC与MQTT作为消息总线，signal R Hub实时数据流推送

C# implementation of Digi XBee ZigBee API operations.

Home Assistant events published to MQTT with WebSocket API state_changed JSON as topic payload.

Process ADS-B messages from dump1090 and build up full flight details from multiple messages; track flights within threshold in nautical miles; publish tracked flights to MQTT.

The HiveMQ C# MQTT client for .NET

Home Assistant integration with HWINFO, MQTT and optionally Logitech Flight Instrument Panel

基于C#、WPF、Prism、MaterialDesign、HandyControl开发的通讯调试工具,，支持Modbus Rtu调试、Mqtt调试

A simple .Net Core Windows/systemd service that subscribes to MQTT brokers and writes the messages into a local SQLite database