I have created a new circuit which is in production and for sale right now called The Dawm

The Dawm is a breakout board for the TLC5940 chip. This chip has the possibility to pwm (pulse width modulation) 16 different ports over serial communication from example an arduino microcontroller or similar. (This means in ordinary language that you can for example dim 16 LEDs up and down individually)

One nice feature of the TLC5940 is that it is daisy chainable, which means that one chip can be connected to the next one and so on for plenty (500+) of pwm ports. Each one of the ports is individually controllable from only using 5 pins from the microcontroller. This creates great possibilities like creating low resolution screens or light patterns which is fully customizable and so on. Also control of motors and other outputs is possible.

An Instructable how to build it can be found here

It can be purschased as either an Kit containing everything you need to build it for 15 euro or as a bare pcb for 5 euro by emailing me.

This summer I will be part of arranging a couple of workshops in Arduino and Processing. Im member of a group called 1scale1 and it is us that will be holding this venue in Malmo Sweden. If it sounds interesting take a look at http://www.1scale1.com/7workshops7