Me and a group of friends need to make a college project and decided to do a LED cube that can graph mathematical functions. We do not know how to code very well, and are very new to Electrical Engineering. We decided that we are gonna build the cube using an Arduino Uno. After searching quite a few cubes decided to build this:


We choose this one because its very easy to build, and doesnt have a bunch of componente we dont know(and specially, arent avaible in our city). Problem is the A6276 LED drivers are discountinued. We wanna try building the cube using the TLC5940, which we already have. Problems is, we dont undestand the new features of the TLC5940, and after reading many times the Datasheets we still dont know if we can use the TLC LED drivers instead of the A6276. So i am asking how can we use the TLC5940 to make a multiplexing 8x8x8 LED Cube using Arduino Uno.

I know there are many guides to do Led Cubes, and many include Arduino in them, but there are only few for big Led Cubes , and even less guides with the simplicity like the one we choose. And, i couldnt found a 8x8x8 guide that used the TLC5940. Please, help me, our heads are melting trying to find a solution!

Datasheets: (Cant post 3 links, but google TLC5940 datasheet, first result) http://www.allegromicro.com/~/media/Files/Datasheets/A6276-Datasheet.ashx

The cube will be built using single color 5mm LEDs.

Please, answer this prayer!

And thanks for at least taking your time reading this! ;)

  • \$\begingroup\$ FTR, the '5940 melted my head too, at first. \$\endgroup\$ – Ignacio Vazquez-Abrams May 17 '15 at 2:52

The TLC5940 is overkill for this. It has PWM dimming of the LEDs, which will actually make it harder to implement.

The TLC59284 appears to be both pin- and signal-compatible with the A6276, and should be considered for use instead.


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