layer board of
Shared on July 30th, 2013 21:23.
Big 7-Segment driver. A ‘595 shift register lets you chain any number of these to build a large display.
Perfect for keeping Open Mic talks at hackerspaces on time!
(photos, assembly instructions, Arduino code)
For the check 7-segment digits, search Ebay for “3inch 7 segment Red LED display common anode”.