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4 digit charlieplexed segment display

ultra thin custom display ... only 6 gpio for 30 leds

bobriciusbobricius
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Maybe you need ultra thin custom display, this is solution ....
Why charlieplexing? because it is for my like piece of magic.

FEATURES:

- 1.05x0.48 inches (26.67x12.22 mm)
- 30 led
- any color
- ultra thin .... etc. on 0.8mm board
- only 6 gpio
- ideal for wrist watch

7seg-micro.sch

sch - 104.90 kB - 06/20/2016 at 11:31

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7seg-micro.brd

brd - 63.34 kB - 06/20/2016 at 11:31

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Jon Raymond wrote 08/24/2016 at 21:01 • point

Neat project! Are you willing to share the updated project files with the 3 separate layers?

  Are you sure? yes | no

donaldej wrote 08/24/2016 at 16:37 • point

I want to see pictures of it in action.

  Are you sure? yes | no

j0z0r pwn4tr0n wrote 04/13/2016 at 01:33 • point

I just received these a few days ago. What is the pinout to drive it? 

  Are you sure? yes | no

Yann Guidon / YGDES wrote 04/13/2016 at 00:23 • point

Have a look at #DYPLED and tell me if the 4014 LED format fits your needs :-)

  Are you sure? yes | no

bobricius wrote 04/15/2016 at 08:04 • point

I am using 0802 LEDs

  Are you sure? yes | no

Yann Guidon / YGDES wrote 04/15/2016 at 15:34 • point

This is good to know :-) #PICTIL uses 0402 but no charlieplexing to reach higher speed.
Now I wonder how to do charlieplexing in TTL gates :-D

  Are you sure? yes | no

ogdento wrote 01/09/2020 at 22:36 • point

There are so many applications to use your great "pcb sandwich" idea for a display!  Are your 0802 LEDs the "side view" type that you just soldered upright?  or better yet, can you tell me the manufacturer number of the LED?

  Are you sure? yes | no

bobricius wrote 03/16/2016 at 23:56 • point

I am sorry, I lost source files, I need complete rework this display. You can try reorder this board  https://oshpark.com/shared_projects/eL6HGlbh I have not finished arduino code now :(

  Are you sure? yes | no

j0z0r pwn4tr0n wrote 03/17/2016 at 03:18 • point

I ordered that. I'll try it out and let you know about it. Thanks!!!

  Are you sure? yes | no

j0z0r pwn4tr0n wrote 03/16/2016 at 03:22 • point

Do you have board files for this project? I would like to make one for myself 

  Are you sure? yes | no

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