RGB LED display with Raspberry Pi GPIO

Henner Zeller designed hardware and software to control up to three chains of 32×32 or 16×32 RGB LED displays using Raspberry Pi GPIO:

 

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

i (8)

Order from OSH Park

 

Active-RPi-3xHub75-Adapter

bac56b729411189c56b9427e5de65a3d
Order from OSH Park

 

Passive-RPi1-Hub75-Adapter

i

Order from OSH Park

RGB LED display with Raspberry Pi GPIO

5 thoughts on “RGB LED display with Raspberry Pi GPIO

  1. Louis Beaudoin says:

    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!

    Like

  2. Harry says:

    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

    Like

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s