Quantity   Component name
1 × Itsy Bitsy M4 Express From Adafruit, this Arduino clone packs a punch in a nice small package. https://www.adafruit.com/product/3800
1 × SparkFun GPS Breakout XA1110 Nice GPS breakout board. Would have used the Adafruit one, but this one gives some metadata on upcoming leap seconds, and I want to handle those properly. https://www.sparkfun.com/products/14414
3 × Adafruit DotStar 1m strip, 144/m https://www.adafruit.com/product/2241
1 × Adafruit DotStar 1/2m strip, 144/m