Imported from GitHub: Electro707/OSLB56317_Driver · commit e33edc7 · license GPL-3.0

Description

A driver board and firmware for the OSLB56317 LED matrix

README

OSLB56317-XX LED Driver

This project is to drive the OSLB56317 16x16 LED matrix I got from my trip to Japan (from Akizuki)

Project Structure

• CAD: FreeCAD Source file for enclosure
• Firmware_Demo: A quick demo firmware to get the display up and running
• Firmware_FFT: Firmware to display an audio spectrograph from a USB host
  • The firmware will act as a USB speaker, which audio must be routed to it
• PCB: KiCAD PCB source files

Known Issues

• I goofed up on the RP2040's SPI wiring to the constant current led driver, so for now it is emulated in software
  • todo: make this a PIO block, or even a PIO block to drive the entire display?
• In the CAD file, there is no easy way to take it apart other than pushing a small flat head between the display and the case. With PLA, the case is maluable enough to bend
  • todo: add some small slot eventually to be able to easily remove the display assembly
• In the schematic, the columns and row new names should be swapped (don't ask how that happened), but this has no effects on functionality
• In Firmware_FFT, every now and then the main loop will unexpectantly stop, randomly
  • todo: attach debugger and see what causes this crash, probably some incorrect memory indexing

todo, maybe

• Develop a PIO block for the LED matrix
• Create more fun demo codes (animation?)
• Create a USB audio spectrum analyzer

License

This project, except for the external Firmware_FFT/Adafruit_ZeroFFT, is licensed under GPLv3. See LICENSE.md for details.

Credit

A fork of Adafruit's ZeroFFT library, by donmccoy, was used in this project, and that is licensed under BSD-3