For some time I have talked about building an LED cube and have finally got around to building one. The cube is electrically arranged as 8 layers of common cathodes and 64 columns of common anodes.
For some time I have talked about building an LED cube and have finally got around to building one. The cube is electrically arranged as 8 layers of common cathodes and 64 columns of common anodes.
The processor used is a Microchip dsPIC33FJ128MC802. This is really overkill for such a simple device, but is one that I had available to use.
The 64 columns are driven by 8 CMOS shift registers controlled by 8 output bits from the processor. The 8 layers are driven by 8 transistors controlled by another 8 output bits from the processor.