Name		Name	Last commit message	Last commit date
parent directory ..
Makefile		Makefile
README.md		README.md
passive3-rpi-hub75-adapter-cache.lib		passive3-rpi-hub75-adapter-cache.lib
passive3-rpi-hub75-adapter-fab.zip		passive3-rpi-hub75-adapter-fab.zip
passive3-rpi-hub75-adapter.kicad_pcb		passive3-rpi-hub75-adapter.kicad_pcb
passive3-rpi-hub75-adapter.pro		passive3-rpi-hub75-adapter.pro
passive3-rpi-hub75-adapter.sch		passive3-rpi-hub75-adapter.sch

README.md

Adapter PCB to support up to 3 panel chains

Passive board. Simple, but might need to define --led-slowdown-gpio if you see glitches. Consider using the active board in that case.
Only really advisable, if the LED panels have 74HCT245 (as opposed to just 74HC245) in their input stage, because then they can deal properly with the 3.3V logic levels coming from the Pi.
Supports up to three panel chains for newer plus models and Raspberry Pi 2 that have 40 GPIO pins.
Open source KiCAD PCB EDA format.
(not very pretty layout, was just lazy and let the auto-router do it).
The FAB files are provided as passive3-rpi-hub75-adapter-fab.zip

This board is shared on OSH Park (not affiliated).