SPI Pixels - Control 16 LED strips at once
Parallely feeding 16 SPI LED strips with a Raspberry Pi.
This is the hardware and library separated out of the FlaschenTaschen project to be used independently.
This provides a Raspberry Pi Adapter to connect up to 16 SPI-type LED strips (such as APA102, WS2801, LPD6803), that are fed by the Raspberry Pi in parallel for fast update rates.
If you want to use the library in your own projects, just add it as a sub-module to your project:
git submodule add https://github.com/hzeller/spixels
You now have a subdirectory
spixels/ in your project. See
the Makefile in the examples/ directory as a
template how to use it with your project.
You find the board in the hardware/ directory (including Gerbers and OshPark link).
The adpater is compatible with any Raspberry Pi with 40 GPIO pins, such as the Pi 1 B+, Pi 2 or Pi 3.
A single APA102 strip connected to the board:
This is used in the FlaschenTaschen project, in which only 9 of the 16 connectors are used, one for each 'crate column'. The update rate with WS2801 reaches 160fps!.