Make a Guggenhat: Bluetooth-connected wearable NeoPixel marquee hat

Adafruits Bluefruit devices are hands-down the easiest way to get Arduino communicating over a Bluetooth wireless connection. Bluetooth LE is a great way to control a project from a smartphone or tablet. This simplicity could be illustrated with a scrolling LED wall sign that works with your phone or tabletand its easy enough to link up a few 8x8 NeoPixel matrices.but were a little more zany than that. And weve got a thing for wearable electronics. So”