PCB Design - Side Panels & Top - Initial Design

A project log for LED Cubular - LED Desktop Cube

Arduino based; 6 PCBs all with 64 LEDs on the outer face to form a li-po powered cube of 384 LED coolness!

Jack FlynnJack Flynn 03/04/2019 at 17:313 Comments

Side Panels

The side panels for the LED Cubular are as simplistic as possible. Each one will have 64 LEDs on the front (no silk screen) and on the back is the connectors for the top and bottom and a max7219 which is a dedicated LED driver chip that can handle 64 LEDs in a matrix connection and communicates with the bottom PCB ATMega328P via a protocol similar to SPI. What's particularly nice is that the Max7219 can be daisy-chained together to allow for a single communication bus, requiring only 3 pins from the ATMega328P. 

Top Panel

The top panel mirrors the connectors of the bottom but matches the side panels in simplicity. Perhaps in the future this extra space could be used for adding bluetooth functionality or other expanded features? For now, it's a simple mimic with the Max7219 and the 64 LEDs.


business wrote 06/19/2021 at 13:40 point

PCB design side panels and top initial design, I don't know about designing that's why we are talking about the multiple ideas which means that we are going to talk about , But with the mentioned image i think this is enough for us to understand what the design is in real.

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Jack Flynn wrote 03/05/2019 at 20:53 point

Ooo good shout. I haven't given the top panel much love yet. It's a circuit maker "fork" of the bottom and I took out everything unrelated. I'll definitely keep that in mind! 

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Gerben wrote 03/05/2019 at 14:20 point

I was wondering if you could change the design a bit, so that you could use the same PCB for both the top and bottom PCBs, where only the bottom one is full populated. Maybe add some pads for 0-Ohm "jumper" resistors.
That way you might save some cost.

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