C# SNMP Library (#SNMP) - Open source SNMP implementation for C#
Asynchronous Low Latency C++ Logging Library
An Arduino NeoPixel support library
HTTP and WebSocket built on Boost.Asio in C++11
nanomsg library
Fast C++ logging library
Cross-platform, C implementation of the IETF QUIC protocol
Simple .NET logging with fully-structured events
C++ library for easy and flexible logging
supports RS232/485/Modbus, sockets, text enc/dec (multi-alg) and so on
32/64 bit multi-platform Ethernet S7 PLC communication suite
freeRTOS for Arduino Uno, Goldilocks 1284p & Mega 2560
Gev is a lightweight, fast non-blocking TCP network library
An Open Source POWERLINK Stack
Native Apple HomeKit accessory implementation for the ESP8266 Arduino
A cross-platform network component developed by WeChat
Send Mime and Smime Emails to Any Type of Mail Server
Java asynchronous socket library
Lightweight fully extendable client/server application framework
Smartcard access lib for Arduino based boards
Networking/Socket C++ Library.