Thanks Hero! That helps a lot getting started. Looks like lots of instructions available on building that circuit.
I guess I'm searching for the wrong thing... but I'm having trouble finding a place to purchase the small LED bulbs. When I do find them is there going to be a choice of...
I'm trying to build a desk toy that has three small LED bulbs that come on automatically when the object is turned 90 degrees.
Assumming that a small mercury switch between the bulbs and the battery would do the trick.... but I have no clue on following items.
How do I determine what size...