Junkyard Jewel

A project log for Common Anode LED Control

How to hook up a 7-segment common anode display to Arduino

MarkMark 05/29/2016 at 13:040 Comments

Because my hobby budget is close to zero I often search thrift stores and fleamarkets for electronic junk i can salvage for parts. I recently found a toy soccer scoreboard / game timer that was fully functional for only 1 euro.

After taking it apart, i was left with 5 microswitches on wired PCB's, quite a beefy speaker, a small 4 digit clock LCD, two large LED digits and a neat battery compartment with four AA batteries. I also salvaged the two large spring-loaded pushbutton assemblies and all the wiring and connectors.