Rpi-hw (short for "Raspberry Pi Hardware") is a free C++ library designed to manage the Raspberry Pi's GPIO connector and its other buses. It allows you to connect several devices to the board (including displays, keypads, stepper motors, and sensors) as you would with Arduino's libraries.
Features
Low-level access to the GPIO Connector and SPI, I2C, UART buses
High-level input/output interfaces
Support for I/O expander ICs
Support for many devices, including displays, keypads, stepper motors, and sensors
Unicode support (built-in)
Support for standard fonts (using FreeType) (optional)
Support for multiple image formats (using Magick++ API) (optional)
