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24 lines
1.2 KiB
Markdown
24 lines
1.2 KiB
Markdown
1 year ago
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PCB adapter for Raspberry Pi to Hub75 RGB Matrixes
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==================================================
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Since hand-wiring can be a little tedious, here are some PCBs that help
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with the wiring when using the `rpi-rgb-led-matrix` code.
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* [Passive-3](./passive-3) Supports three parallel chains, directly connected
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to the output of a Rapsberry Pi with 40 GPIO pins. Works, but usually it is better to
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buffer the outputs using the ...
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* [Active-3](./active-3) board. Supports three parallel chains with active buffering
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and 3.3V -> 5V level shifting for best reliability. Requires SMD soldering.
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As another option you can buy it from these locations not affiliated with this project.
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They are given to help you locate premade boards but no guarantees are given or implied:
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* https://www.electrodragon.com/product/rgb-matrix-panel-drive-board-raspberry-pi/
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($3/board, but fairly long and/or expensive shipping from HKG)
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* Seller #2 (fill me)
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* The [Passive-RPi1](./passive-rpi1) adapter board is to connect one panel to
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Raspberry Pi 1 with 26 GPIO pins.
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![Three Panels connected][three-panels]
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[three-panels]: ../img/three-parallel-panels-soic.jpg
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