Dice Digispark (Arduino) Neopixels

https://www.youtube.com/watch?v=t19V3Kr95x8

I just decided while learning to program an arduino, to make this dice as a little training in programming.
Don't get confused with the shown wiring diagram, there is a arduino nano shown, but in the dice i used a digispark. There is just no digispark available on circuito.io.
If you trying to learn stuff like this i really recommend using this website. it helped me a lot understanding whats happening there.