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Christmas Tree O’Digital Logic

Tuesday, December 18th, 2012

Chris from PyroElectro writes about his holiday project. "It's an all-digital-hardware LED Christmas tree we're calling the Christmas Tree O'Digital Logic. The tree itself is composed of 64 LEDs built into a spiral sitting on a piece of protoboard. Underneath, the controller uses shift registers and a 555 timer to...

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Recent Comments

  • Craig B: Shouldn't the default be 00xxx010? Note that bit 0 appears out of order in the documentation. In that case I think the initial value is...
  • JJM: From the datasheet extract you are showing, the power up status should be 00xxx010, not 000xxx01. Bit numbering is misleading since 'measurement resolution' is apparently...
  • Jan Ciger (@janoc200): Hmm, that could actually explain why the three sensor IMU breakout I have bought a few years ago had all sorts of issues - I...
  • Travis: Is it preset to the windows 3 fingered salute?
  • Glenn: What a cool idea !