LED Cube 4x4x4

               Here is my LED Cube 4x4x4. I made it of 64 LED diodes, which is controlled by PIC 16F877 microcontroler. This LED Cube have a few operating modes, some of them are little cube which moving through Cube, firework and some text.

LED Cube

             How it work, you can see on this link: LED Cube 4x4x4 (PIC 16f877)

Scheme of this LED Cube is below:

Scheme of LED Cube

        How you can see, I control 4 GND's and 16 rows, 4 rows for every layer separately.

        NPN transistors BC547 or BC549 (not showed for reason of transparency) are used for amplification signal from microcontroller pins.

       Reason for that is because, output pin of microcontroller on output have 20 mA, which is enough for one LED diode to light good.


         How to connect transistors is on next schematic:

   

                                                                                                                                                                                                                                                                                                                                                                                                                                                                                           Transistor BC549 - Common collector (current amplier)

         

        LED Cube 4x4x4 v2.0 you can see on this link. LED Cube 4x4x4 v2.0 have some new, some modified modes.

LED Cube 4x4x4 v2.0