This project was designed by hittconsulting. I revised the design slightly to work on our new project boards. You can get the kit from Gadget Gangster and download a PDF version of this howto.
Here's a quick video of the original version;
Warm up your soldering iron and get started!
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Signing UpStep 1: Gather the Parts
Parts list
- Knob
- 1x .1 Ceramic cap
- 2x 10uF Electrolytic caps
- 1x 28 Pin Dip socket
- 1x Power connector
- 1x 1n4001 diode
- 1x SX 28 microcontroller (if you buy the kit, the SX will come pre-programmed, otherwise you can download the sourcecode from Gadget Gangster)
- 8x 3mm Red LED's
- 1x Gadget Gangster Boss Board
- 1x 3.3v LDO regulator
- 1x 10k ohm potentiometer
- 3x 10k resistors (Brown - Black - Orange)














































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But if you're doing development and stuff, I don't think there's a cheaper way to program the IC. Keep in mind, though, that the SX is going end of life. Parallax will pick up a large stock this month that might last a few years, though.
you forgot to put the electrolytic caps on the parts list.