HP 5082-74xx 7-segment display revived (70s tech)

Recently i found some of these rare 5 digit 7-segment modules from the 70s.

Once found in calculators and watches these tiny GaAsP LED modules amaze with their tiny, crisp, deep red segments with a whole digit not even 3mm tall.

I have created a simple breadboard friendly interface board featuring current limiting resistors and 2 shift registers (one for anodes and one for cathodes) for simple interfacing with modern microcontrollers.

Design files are found on the hackaday.io project page.