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: 77

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.

Comment

You need to be a member of GarageLab (arduino, electronics, robotics, hacking) to add comments!

Join GarageLab (arduino, electronics, robotics, hacking)

Latest Activity

tools4u posted discussions
yesterday
Profile IconRichard Vincent, KrisWiner and tools4u joined GarageLab (arduino, electronics, robotics, hacking)
Friday
GarageLab posted blog posts
Wednesday
Profile IconJ.J.J. Kuipers and Phan Minh Kha joined GarageLab (arduino, electronics, robotics, hacking)
Wednesday
GarageLab posted a blog post

Electric lawn mower converted to RC control

Not too many people like pushing a lawn mower around the yard, but unfortunately, it is a necessary…See More
Jun 29
Profile Iconchiran sachintha and Blun Blun joined GarageLab (arduino, electronics, robotics, hacking)
Jun 29
GarageLab posted a blog post

Codename Colossus: The HMC Boudicca

[Michael Sng], founder of [Machination Studio], wanted to create a toy line unlike anything the…See More
Jun 26
Fernando Rodrigues Pontes is now a member of GarageLab (arduino, electronics, robotics, hacking)
Jun 26
GarageLab posted blog posts
Jun 23
Profile IconSayed Akbar Rajaei Ramsheh, william sarte and Ahmed OUKERROUM joined GarageLab (arduino, electronics, robotics, hacking)
Jun 23
GarageLab posted a blog post

Dashboard in you simulator!

 Fans of driving simulator games not only play with steering wheels, gear shifters and pedals. Some…See More
Jun 22
Jesus M Andino commented on GarageLab's blog post Diabetes Has a New Enemy: Robo-Pancreas
"How will be the sugar regulated when there is a higher demand of it due to stress situations? "
Jun 19
GarageLab posted blog posts
Jun 19
GarageLab posted blog posts
Jun 17
AnalysIR posted a blog post

Porting AnalysIR firmware to Particle’s Photon platform

We have just finished porting our (single source) firmware from a range of other ‘Arduino’ type…See More
Jun 17
Profile Iconabin joseph, ATony and cocowei joined GarageLab (arduino, electronics, robotics, hacking)
Jun 17
Michael updated their profile
Jun 15
lovakiranvarma replied to Kringen's discussion MSP430 Launch Pad
"hi! Kringen even though Energia is promissing! But in my opinion it won't much helpful…"
Jun 14
GarageLab posted a blog post
Jun 12
AnalysIR posted a blog post

Simple Infrared PWM on Arduino, Part 2- RAW IR Signals

In Part 1 of this series, we demonstrated how to send signals using simple Infrared PWM on Arduino.…See More
Jun 12

© 2015   Created by Marcelo Rodrigues.

Badges  |  Report an Issue  |  Terms of Service