My #hamradio club had an “intro to #arduino” lab today. It was the first time I made any type of circuit since a physics lab my freshman year of college. Here are some examples of increasingly complex blinking lights.

I’m still not sure what I’ll use this for (which is why I never got into Arduinos in the first place) but it was fun building these simple circuits!

@waltman I once used an Arduino to ignite fireworks (as part of a workshop at a fireworks convention). It seemed easier to use a blowtorch, so I never used that Arduino again, but I assume I still have it somewhere.
@skyfaller I’m guessing it’s more fun to use the blowtorch, too!