An Arduino project that uses the Adafruit NeoPixel Library to write pixel art to a 15 x 10 RGB digitally addressable LED Board.
From Arduino GUI, select Tools -> Manage Libraries... and then search "Adafruit NeoPixel" and then install it.
https://learn.adafruit.com/usbtinyisp/download
Make sure "USBtinyISP" is selected under Tools -> Programmer: After you plug in the programmer hit Sketch -> Upload Using Programmer.