This is one crazy 8*8*8 LED Cube Build. We have seen other LED Cubes here before but I have never seen one documented as well as this one, if you are looking for some pointers when you build your own this project would make for a great resource. Latches are used to provide the large number of outputs needed to interface to the cube. Check out the video below for the great results.
“To get get the required 64 output lines needed for the LED anodes, we will create a simple multiplexer circuit. This circuit will multiplex 11 IO lines into 64 output lines.
The multiplexer is built by using a component called a latch or a flip-flop. We will call them latches from here on.
This multiplexer uses an 8 bit latch IC called 74HC574. This chip has the following pins:
8 inputs (D0-7)
8 outputs (Q0-7)
1 “latch” pin (CP)
1 output enable pin (OE)
Here is what you need to make a LED cube:
512x LEDs (plus some extra for making mistakes!)
64x resistors. (see separate step for ohm value)
1x or 2x large prototype PCBs. The type with copper “eyes”, see image.
1x ATmega32 microcontroller (you can also use the pin-compatible ATmega16)
3x status LEDs. You choose color and size.
3x resistors for the status LEDs.
8x 74HC574 ICs
16x 2n2222 transistors
16x 1k resistors
1x 74HC138 IC
1x Maxim MAX232 IC
1x 14.7456 MHz crustal
2x 22pF ceramic capacitors
16x 0.1uF ceramic capacitors
3x 1000uF electrolytic capacitor
3x 10uF electrolytic capacitor
1x 100uF electrolytic capacitors
8x 20 pin IC sockets
1x 40 pin IC socket
2x 16 pin IC socket
1x 2-pin screw terminal
2x 2wire cable with plugs
9x 8-pin terminal pins
1x 4-pin terminal pins
2x 16-pin ribbon cable connector
1x 10-pin ribbon cable connector
2x ribbon cable plugs
9x 8-pin female header plugs
Serial cable and 4pin female pin header
Piece of wood for template and base
8x optional pull-up resistors for layers
5v power supply (see separate step for power supply)”
HEllo, i would like to do this for my pat (Project of Tecnological Aptitude or in my language [ pt of europe] Project de aptidao Tecnologica), i dont mean to do this as my own just do this with my colleges…
And by the way everything i need to do this beautiful cube is here in this page?