sb components PiCube 4x4x4 LED CUBE for Raspberry Pi 3,2, Zero and A+ Unassembled (Blue)

• 70 high intensity monochromatic LED's
• Available in three vibrant colors i.e. RED, GREEN, BLUE
• GPIO based operation. Manual included
• 40-pin stacking header for accessing GPIO of RPi
• Each Layer as well as each LED can be individually accessed and controlled as per requirements

How to control 64 LEDs without using 64 individual wires? Multiplexing! Running a wire to the anode of each led would obviously be impractical, and would look really bad.One way to get around this, is to split the cube into 4 layers of 16x16 LEDs All the LEDs aligned in a vertical column share a common anode (+) All the LEDs on a horizontal layer share a common cathode (-)