LED Cube in 5x5x5 Arrangement

Overview

The project illustrates the orientation independent 3D LED display which is actually a 5x5x5 cube display.

Explanation

The 5x5x5 LED cube display comes with a controller board and as the cube is interfaced to a Mega32 microcontroller. A wide range of low resolution 3D images or animations can be displayed on the cube and the vertical or horizontal orientation of the cube can be detected by using an accelerometer. If the cube is turned sideways, the display is adjusted so that it will remain upright. A message can be displayed on the cube or a little light show animation.

There are at least 6 wires running off of each of the 25 columns at the bottom of the cube in order to control the LED individually. All of the up and down columns of LEDs should be connected to the same positive terminal for a total of 25 columns with 5 LEDs each column. All of the horizontal levels would then be connected to the same ground.

Using the outputs of the decoders to control the LEDs, 25 pMOS transistors were used as high side switches and 5 nMOS transistors as low side switches.