Hopiu/rpi-rgb-led-matrix
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rpi-rgb-led-matrix/adapter/passive-3
History
Henner Zeller b55d10a6cb o Emphasize that boards with HC input chips are likely problematic
2015-10-20 08:51:26 -07:00
..
Makefile o Provide fabbing files for all adapters. 2015-10-19 22:21:02 -07:00
passive3-rpi-hub75-adapter-cache.lib Merge branch 'experimental-pwm-bit' of github.com:hzeller/rpi-rgb-led-matrix into experimental-pwm-bit 2015-06-17 20:16:57 -07:00
passive3-rpi-hub75-adapter-fab.zip o Update fab files with git-version labels in bottom silk 2015-10-19 22:54:24 -07:00
passive3-rpi-hub75-adapter.kicad_pcb o Provide a way to include the git version in the fabbed silkscreen. 2015-10-19 22:52:04 -07:00
passive3-rpi-hub75-adapter.pro o Update pictures. 2015-06-17 20:36:28 -07:00
passive3-rpi-hub75-adapter.sch o Fix connection problem. 2015-06-12 10:16:44 -07:00
README.md o Emphasize that boards with HC input chips are likely problematic 2015-10-20 08:51:26 -07:00

README.md

Adapter PCB to support up to 3 panels

  • Passive board. Simple, but might need to define RGB_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).

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