The official round of thing-a-day is done. Thank you all for your incredible work and see you next year!

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Day seven: Improved driver circuit, demo software

I didn’t like how the thing was working out under parallel port control, so I bumped it over to an Arduino clone that I had. I’ll post directions next; there is a really simple way to do the circuit that should only involve about 5 chips besides the Arduino board, so don’t let my crazy wiring scare you off. In customary fashion, the source code is here. It’s actually a motion display, so check out the video.

Smiley face drawn in color LEDs

Last 5 posts by cibomahto

Comments:

  • I loooove it! Cheery and I’m a sucker for a smiley face :)…

  • I loooove it! Cheery and I’m a sucker for a smiley face :)

  • I don’t know how you wired the LEDs and it has been a few years since I looked at this stuff but your code look like you could do this pretty easily… you should make the happy face wink!!!

  • And total cool by the way!

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