At long last I have the LED's on Playpi up and running. I am using two 16-bit I/O Port Expander's (MCP23017) connect to the raspberry pi and three ULN2003A Darlington Arrays. The amount of wire's are a little bit of an issue, but I will sort that out. You can see video of them in action below or see the images here.

 

Updates

FluxPi First Look
Updated: 2015-06-01 12:56:40

First Look!
Updated: 2015-06-01 12:49:24

Introducing FluxPi
Updated: 2015-04-16 12:38:43

PlayPi and Raspberry Pi 2
Updated: 2015-04-14 12:54:32

PlayPi - Version 1.3.8
Updated: 2015-04-14 12:51:42

How to setup pyo and SPI on Raspbian
Updated: 2015-02-23 13:25:11

Playpi Version 1.1.0 | Raspberry Pi Drum Machine | Raspberry Pi Sequencer
Updated: 2014-10-24 23:31:14

Playpi Hardware Build | Raspberry Pi Drum Machine | Raspberry Pi Sequencer
Updated: 2014-10-24 23:30:56

Playpi LEDs up and running!
Updated: 2014-09-22 13:08:10

Playpi - Hardware Version 3.0 (Final) - Complete
Updated: 2014-09-02 12:38:34