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: 64

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

GarageLab posted blog posts
11 hours ago
Enrico M. posted a status
"Building the Apollo console version I"
yesterday
Lena Cook is now a member of GarageLab (arduino, electronics, robotics, hacking)
yesterday
Paul Denton updated their profile
Friday
GarageLab posted a blog post
Friday
Profile IconRichard Coplan and Juan V. Sanchez-Andres joined GarageLab (arduino, electronics, robotics, hacking)
Friday
Kshitij Dadhekar commented on GarageLab's blog post Tutorial: How to use the Cellular Shield (SM5100B) with Arduino
"Hello,       Can you tell me what is the resistance of the speaker to be…"
Nov 19
GarageLab posted a blog post
Nov 19
Profile IconKshitij Dadhekar, Marvellous Mark and Enrico M. joined GarageLab (arduino, electronics, robotics, hacking)
Nov 19
david chan commented on GarageLab's blog post Tutorial: Humidity and Temperature Sensor with Arduino
"How do you see the output "
Nov 18
Enrico M. posted a discussion

Power supply circuit

Hi guys,I'm building some sort of wood case to arduino mega with LCD, keypad, LED's ...I also want…See More
Nov 18
GarageLab posted blog posts
Nov 18
Profile Icondavid chan, uday harihar, CVassiliou and 4 more joined GarageLab (arduino, electronics, robotics, hacking)
Nov 18
Jeff Bowen updated their profile
Nov 17
Michael Shaw replied to Jean-Guillaume LALANNE's discussion Smallest Arduino with BLE stack and push button integrated
"Check out Tiny circuits for open source: https://tiny-circuits.com/"
Nov 16
rozzers commented on rozzers's video
Nov 14
rozzers commented on rozzers's video
Thumbnail

20141108 150539

"this is a really simple instructable courtesy of NXTprograms. Build and programming instructions at…"
Nov 14
rozzers posted videos
Nov 14
Profile IconJEAN FRANCOIS ROY, Paul Turner, Jadson Santos Silva and 2 more joined GarageLab (arduino, electronics, robotics, hacking)
Nov 14
GarageLab posted a blog post
Nov 14

© 2014   Created by Marcelo Rodrigues.

Badges  |  Report an Issue  |  Terms of Service