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

2 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

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