NeoPixels are amazing... they simplify lighting projects and can be driven by a wide variety of microcontrollers.

That's right, no shift registers, charlieplexing, or fancy setups. Just one pin! This makes them great for something complex-shaped like a 3D cube

The 3x3x3 cube is crazy bright... and wicked awesome!

Parts!

For this project you'll need

• 27 x Thru-hole NeoPixels (if you get 30 you'll have spares in case you need them)
• Something to drive them, like a Trinket 5V
• 5V 2A power supply is plenty
• On/Off Power button
• DC panel-mount jack
• Wire, solder, soldering iron, hand tools...
  

A 3D printer can print out the custom base, or you can craft something custom with wood or cardboard