Cross-platform C++ libraries for building network applications
C++ Qt ORM (Object Relational Mapping) and ODM library
Tiny data-over-sound library
Real-time image and video processing library similar to GPUImage
Infrared remote library for Arduino, send and receive infrared signals
JSON library for Arduino and embedded C++. Simple and efficient
ArrayFire, a general purpose GPU library
Infrared remote library for ESP8266/ESP32
ESP32 library for ACME protocol client (to get certificates)
OpenGL ES to Metal API translation layer
Portable suite of libraries and tools for building client applications
Bluetooth LE Keyboard library for the ESP32
Uniform deep learning inference framework for mobile
Payload for teensy like a rubber ducky but the syntax is different
C++ library for image acquisition and visualization
QASreport - is a multi-platform C ++ Qt library for building reports
Another C++ Hack
ROS-Enhanced Scalable Haptic Library - discontinued
Beaglebone Black C++ Library
XDBM is an XQuery implementation on the W3C's EXI binary XML format.
Lego Arduino Drivers