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
- 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...