I made this project a few years ago with some classmates in school.
We had some time left in our project week, so we decided to build a led cube.
The microcontroller we used was a 16F648A. The leds are in a 3D matrix.
The cube is divided in 3 rows. These are connected to ground via a transistor. The + of the leds are connected to the pic via resistors.
Circuit:
Video of the LED Cube in action:
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Files
Code: Download
Dutch 
