Build an arduino with a panel display built in

Nice build.  Basically its a homemade arduino with a display on the other end.  That way you can pop it onto a case and look pretty professional.

Panel Mount Display Solves The Problem Of Drilling Square Holes

Original article

http://www.absolutelyautomation.com/articles/2017/03/10/panel-mount-7-segment-display-embedded-arduino