I'm looking for a small fairly rugged normally open switch that closes when a "pin" is removed. It needs to take about 12V It needs to be passive and not require power. Is there such a component?
Basically, I want to be able to pull out a pin or a small plug to turn a device on.
I can think of a mechanical solution, a plastic pin that blocks the current flow, once removed the contacts would press together. But, for my application (a drone) I don't think I can build something rugged enough.
So is there a type of store-bought component that will do this?