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I'm starting to suspect that the source you provided is for a single color version of this kit. As soon as i flash the supplied hex file my red leds stop working.
This confused me too. There's an extra small capacitor. You only need the two next to the crystal. I checked the schematic to be sure.
I had success programming the cube on Linux, and I'm pretty sure it'd be easy on Mac OS X too. Pull requests welcome!https://github.com/rgm3/ledcube444
Yes, I put some info up on github. Check my other comment for the link. I accidentally fried pins 38 and 39 trying to get into bootloader mode, so I'm waiting on a replacement microcontroller before I give more accurate names to the functions.
I used blu-tak to hold the LEDs down on a piece of paper with 2cm ruler marks while soldering the cube together. The red common wires in order of short-medium-long (for layers 2-3-4) on J7 are P26, P25, P24. On J6 it's physically the same order, P22 (short wire, layer 2 cathode), P21 (medium), P20 (long). I don't understand how these LEDs are current limited -- the 4 1k resistors seem to be only for the color changing LEDs underneath? The chinese source code files are Windows-1252 versions of gb2312 encoded data.
I'm halfway through but I'm doubting that I have the three red wires on the correct layers and the pictures don't help much as they're out of focus and the wires are not very straight and are all the same color. Counting the bottom layer of LEDs as layer 1 through layer 4 at the top, is it correct to have:"Left" side (J7): Layer 2 - P24, Layer 3 - P25, Layer 4 (top) - P26"Right" side (J6): Layer 2 - P20, Layer 3 - P21, Layer 4 (top) - P22
HackerBoxes 0005: LED Pixels, 2D Matrix, 4x4x4 Cube, and Bluetooth
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