Uses the FastLed library to give a bit of sparkle to my 600-led RGB ledstrip.
The coding is not very elegant, it was a fast mashup based on the one of the examples from the FastLed library.
The ledstrip itself was controlled with a Teensy LC
https://www.pjrc.com/teensy/teensyLC.html
This Teensy has a 5V buffer on pin 17 to steer WS2812 or similar RGB leds