FPP Pi Hub75 LED Panel Adapters

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FPP supports driving up to 4 HUB75 compatible LED panels connected directly to the Raspberry Pi's GPIO header. This support is accomplished using the RGBMatrix library created by Henner Zeller. The pinout for the connection between the Pi and the HUB75 panel is documented at https://github.com/hzeller/rpi-rgb-led-matrix librgbmatrix github

To make these connections easier for FPP users, several adapter PCB's were created by CaptainMurdoch.

There are three versions of the adapter PCB. All PCB's are available for purchase directly from Osh Park. Osh Park requires purchasing boards in quantities of 3 but these boards are so small that two of them can be purchased for under $5 including shipping.

Pi hub75 03.jpg
  • Raspberry Pi Hub75 PCB on Osh Park
    • The Hub75 adapter allows plugging one LED panel into the GPIO header on the Raspberry Pi. The current FPP code supports up to 4 LED panels daisy-chained on this output.
    • Required parts in addition to the PCB:
      • One 13x2 female header for connecting to the Pi
      • One 8x2 male header for connecting the cable from the LED Panel Hub75 connector.
    • The 13x2 female header goes on the back/bottom of the PCB. The 8x2 male header mounts on the front/top of the PCB.
    • Images: [File:Pi_hub75_01.jpg] [File:Pi_hub75_02.jpg] [File:Pi_hub75_03.jpg]
Pi hub75 dual 01.jpg
  • Raspberry Pi Hub75-Dual PCB on Osh Park
    • The Hub75-Dual adapter allows plugging in two chains of LED panels into the GPIO header on the Raspberry Pi. The two outputs are duplicates of each other, allowing two sets of 4 panels to display identical information such as would be desired for both sides of a Tune To sign.
    • Required parts in addition to the PCB:
      • One 13x2 female header for connecting to the Pi
      • Two 8x2 male headers for connecting the cables from two LED Panel Hub75 connectors.
    • The 13x2 female header goes on the back/bottom of the PCB. The 8x2 male header mounts on the front/top of the PCB.
Pi hub75 backpack 01.jpg
  • Raspberry Pi HUB75-Backpack PCB on Osh Park
    • The Hub75-Backpack adapter allows attaching a Raspberry Pi directly to the back of a Hub75 compatible LED panel. Up to 3 additional LED panels may be daisy-chained off the first panel using current FPP code which supports 4 panels in total.
    • Required parts in addition to the PCB:
      • One 13x2 female header for connecting to the Pi
      • One 8x2 tall stacking female header for connecting the adapter with attached Pi to the Hub75 connector on the LED Panel.
    • Both female and mail header attach to the back/bottom of the PCB.