Hi, some of you may be interested in our Kickstarter " VoxCube – 8x8x8 RGB LED Cube for the Raspberry Pi"
VoxCube has been specifically designed for the Raspberry Pi.
These cubes are also chainable.
1 x Raspberry Pi driving 1 x VoxCube;
1 x Raspbery Pi driving 4 x VoxCube;
Special attention has been made to make VoxCube compatible with the Raspberry Pi (Models, A+, B+, Pi2 & Zero). There are two ways of communicating between Raspberry Pi and VoxCube;
1. PWM using GPIO 18
2. Bitbanging, using all GPIO pins.
We prefer option two, as this gives the most reliable way to control more than one VoxCube from the Raspberry Pi. Each VoxCube has an ATmega1284p which used to convert the GPIO signals from the Raspberry Pi into a reliable signal used to control the LEDs on VoxCube.
You can check it out here;
https://www.kickstarter.com/projects/21 ... able-cubes