This folder contains basic drivers for a number of HW peripherals, and a few SW stacks (FAT32, a light-weight 802.15.4 wireless stack named Chibi, etc.). It also contains a basic but relatively robust graphic library with support for display custom fonts, loading and saving Bitmap images, touch screen calibration, etc.

Digital to Analog Converters

Drivers and functions to work with a wide variety of display types.

This folder is sub-divided into the following categories:

/bitmap Monochrome displays such as basic OLEDs, and 128x64 pixel graphic displays

/character Text-only displays (VFD, etc.)

/segment Segment displays (8x8 LED arrays, 7-segment displays, etc.)

/tft Color graphical displays, such as TFT LCDs, RGB OLEDs, etc. This folder also contains a small graphics library, code to load and save bitmap images, and functions to work with several font types.

Chan's FATFS, enabling you to read and write to inexpensive SD cards

Motor-control related drivers

Anything related to RF, including NFC and 802.15.4 wireless

A very minimal example of RSA encryption and decryption

Drivers for a variety of sensors (light, temperature, etc.)

Drivers for different types of storage, such as SPI NOR flash, EEPROM, etc.