I’m going to create a head mounted display (HMD).  (Think Google Glass, but much cheaper, and much less capable).  

Why? Not sure yet, but I figure I will create and come up with use cases as I go.  

Inspired by this talented guy who graciously posted his creation of a HMD for use with his bluetooth multimeter.  After seeing the arduino and bluetooth module he used, I found Adafruit’s Feather with Bluetooth, which is a single board design and is nice and small.  It also has a built-in lipo charging circuit so you can run it off a battery and charge it through the micro-usb port.

Lots of variations in the Feather Line, so I’m looking forward to playing around with them.