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WS2812-LED-Driver_ChibiOS

LED Driver for WS2812B, SK6812, NeoPixel etc. for ChibiOS.

Description

Implements the WS2812-protocol using one DMA-stream and one timer. This requires very little cpu, but has a quite high memory usage of 96 bytes per LED.

Supports both RGB and RGBW LEDs.

Status and contribution

This driver has been tested with STM32F4. Further CPU's Please feel encouraged to fork the repo and finish this work. Any contributions, preferably Pull Requests are welcome. Or Join the chat at https://gitter.im/joewa/WS2812-LED-Driver_ChibiOS

Usage

An example project for the STM32F4-Discovery board is included. Connect the LEDs to pin PA1.

Put this directory in the same place as the ChibiOS source tree, so it can be found in ../ChibiOS. Works with ChibiOS 19.1.x. (Use older version for 16.1.x)

  • Make sure at least one peripheral that uses DMA is enabled in halconf.h.