Controlling RGB LED display with Raspberry Pi GPIO
A library to control commonly available 32×32 or 16×32 RGB LED panels with the Raspberry Pi. Can support PWM up to 11Bit per channel, providing true 24bpp color with CIE1931 profile.
Supports 3 chains with many 32×32-panels each. On a Raspberry Pi 2, you can easily chain 12 panels in that chain (so 36 panels total), but you can stretch that to up to 96-ish panels (32 chain length) and still reach around 100Hz refresh rate with full 24Bit color (theoretical – never tested this; there might likely be timing problems with the panels that will creep up then). With fewer colors you can control even more, faster.
Here it is in action:
Henner has shared the his board designs on OSH Park:
Passive-RPi-3xHub75-Adapter
Active-RPi-3xHub75-Adapter
Passive-RPi1-Hub75-Adapter
OSH Park 
The “Order from OSH Park” links are all mixed up, not matching the board they’re under. I’ve been sending people to this article to suggest they buy a board, might want to fix that!
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Thanks for letting me know! I believe I have now fixed those links.
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Hi,
I want to drive one or more TLC 5958 using raspberry pi gpio (non cascaded). I went through datasheet but found it to be too vague about software part.
http://www.ti.com/tool/TIDA-00161
1. Can anyone point me towards relevant documents and sample codes?
2. Has anyone driven this one or similar IC using user mode DMA from raspberry pi? For my application I need communication in MHz. Does anyone have any experience about it?
Thanks
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Hi, you may want to email Henner Zeller who’s email address is in the README: https://github.com/hzeller/rpi-rgb-led-matrix/blob/master/README.md
thanks,
drew
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Hi,
We have a question. We are looking to run 30 x (64 x 32 P5 LED panels) as one panel. Can you provide any infomation that can explain how this can be acheived? [email protected]
Thanks and best regards,
Harry
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