Your Pi is way more capable then you think it is.
As an alternative to an Arduino Nano, Uno, or Mega, you can use a Raspberry Pi, a PSoC, a Teensy 3.2, an XLR8, or a ShieldBuddy to control your NeoPixel applications. As an alternative to an Arduino ...
Makers and electronic enthusiasts looking to add light and colour to the next project may be interested in the arrival of a new NeoPixel RGB Neon-like LED Flex Strip to the Adafruit online store.