Close
0%
0%

LED Cube Pendant - Worlds Smallest LED Cube

Or: How small can makers make things

nqtronixnqtronix
Following
Liked Like project

Just one more thing

To make the experience fit your profile, pick a username and tell us what interests you.

Pick an awesome username
hackaday.io/
Your profile's URL: hackaday.io/username. Max 25 alphanumeric characters.
Pick a few interests
Projects that share your interests
People that share your interests

We found and based on your interests.

Choose more interests.

OK, I'm done! Skip
Similar projects worth following
2.5k views
4 comments
179 followers
View Gallery
You've seen LED cubes, they are everywhere, but this one is unique in it's size. The edge of this 4x4x4 is just about 1cm long, the total size including the epoxy casting and the driver circuitry is 13x13x37mm

The LEDs are driven in a charlieplexed arrangement, which allows to group them in "stacks". The custom, assembler optimized code can create true 24bit RGB colors at a flicker-less frame rate of 120hz. In addition to the ATMEGA328PB microcontroller the build includes a step-up converter, a LiPo charger IC, an accelerometer and a 1Mbit EEPROM.

Right now the firmware is missing a few features I had planned. Do to time constraints I decided to publich the completed hardware as well as the fairly robust demo code. The whole project (including more hi-res images) is documented on inctructables.com, link down below.

iGA.2 - schematic XG7F.pdf

Schematic as .pdf

unknown - 140.28 kB - 01/27/2017 at 08:22

Preview
Download

iGA.2 XG7F.dch

Diptrace 3.0 Schematic

dch - 510.52 kB - 01/27/2017 at 08:22

Download

iGA.3 XG7F.dip

Diptrace 3.0 PCB

dip - 385.19 kB - 01/27/2017 at 08:22

Download

iGA.3 XG7F_asy.dip

Diptrace 3.0 PCB incl. case parts

dip - 532.73 kB - 01/27/2017 at 08:22

Download

iGA.5 - BOM.csv

Bill of Materials, PCB mounted parts only, full list of materials on instructables.com

Comma-Separated Values - 1.29 kB - 01/27/2017 at 08:22

Download

View all 7 files

Enjoy this project?

Share

Discussions

zakqwy wrote 01/27/2017 at 16:21 • point

Crazy impressive soldering, well done! I love the PCB structure!

  Are you sure? yes | no

nqtronix wrote 01/27/2017 at 17:41 • point

The PCB assembly worked even better then expected, it definitely will be my go to option for small builds like this :)

  Are you sure? yes | no

davedarko wrote 01/27/2017 at 10:28 • point

@Hari Wiguna - this is what I had in mind, when you we're doing your tiny RGB cube and I was saying stuff like "planning even smaller". My concept was only an idea and I don't think I would have ever done it, now definitely not :) 

This is great :)

  Are you sure? yes | no

Hari Wiguna wrote 01/27/2017 at 13:51 • point

I totally agree! nqtronix did a fantastic job.  If you haven't already, check out his instructable.  There's a ton more detail there.

  Are you sure? yes | no

Similar Projects

Stomp triggered animated GIFs played on 1920 RGB LEDs
Project Owner Contributor

LED Demo @ Maker Faire 2013

paul-stoffregenPaul Stoffregen

Breathing LED lamp for Motorcycle using ATtiny
Project Owner Contributor

p.u.l.s.e v1

anool-mahidhariaAnool Mahidharia

Ever wanted to build an LED Mask? Here's how I built mine! Maybe it will spark your imagination.
Project Owner Contributor

Awesome LED Mask

anthony-nguAnthony Ngu

Easily add a small OLED screen to your project or electronic badge to display instructions and information!
Project Owner Contributor

SAO OLED

andy-geppertAndy Geppert

Does this project spark your interest?

Become a member to follow this project and never miss any updates

Going up?

About Us Contact Hackaday.io Give Feedback Terms of Use Privacy Policy Hackaday API

© 2024 Hackaday

Yes, delete it Cancel

Report project as inappropriate

You are about to report the project "LED Cube Pendant - Worlds Smallest LED Cube", please tell us the reason.

Send message

Your application has been submitted.

Remove Member

Are you sure you want to remove yourself as a member for this project?

Project owner will be notified upon removal.