Happy Holidays!

 

Here's a really fun Christmas-themed 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 create two modes of display: a predictable pattern and a random pattern.

 

More Details (Schematic/Build Log):

We're also running a Kickstarter campaign to fund our second free online electronics course, "An Introduction To Digital Electronics." We have just 4 days left to raise $2,124. We're trying to spread the word about our efforts and need everyone's help!

Kickstarter Link:


Hope you guys like this project!
Chris @ PyroElectro.com

Views: 55

Tags: 7400, LED, digital, hardware, logic, registers, series, shift

Comment by Marcelo Rodrigues on December 18, 2012 at 7:31am

What a nice project! :)

Comment by Chris @ PyroElectro.com on December 18, 2012 at 7:36am

Thanks Marcelo...no microcontroller necessary! ;-)

Although adding a microcontroller could give you a lot better control, we were trying to focus on an all-hardware design approach to give people interested in our kickstarter an idea of what is possible.

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