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 17:314 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.


chickenplusone wrote 03/20/2023 at 07:36 point

Tower Defense(TD) is a subgenre of strategy games where the goal is to defend a player’s territories or possessions by obstructing the enemy attackers or by stopping enemies from reaching the exits, usually achieved by placing defensive structures on or along their path of attack.[1] This typically means building a variety of different structures that serve to automatically block, impede, attack or destroy enemies. Tower defense is seen as a subgenre of real-time strategy video games, due to its real-time origins,[2][3] even though many modern tower defense games include aspects of turn-based strategy. Strategic choice and positioning of defensive elements is an essential strategy of the genre.

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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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