I want to add a light that comes on when you open the door to my tiny library that's powered by a small solar panel. I'm no electrical expert but I do know basics enough to make simple circuits.
My original idea was to cannibalize one of those cheap garden solar lights that come on when it's dark out and then run it through a normally open switch attached to the door. My problem is that the lights I want to use run off 12v and the output of the little circuit board is around 1.5. I tried running a voltage booster circuit off the output of where the LED from the garden light was, but for some reason it won't register anything on the output side of the booster.
Does anyone know an easy (and more importantly cheap) way to make this work?