Seashells and electronics - what to do with all those limpits except for to fit push-buttons, batteries, holders and motors and LEDs inside.
The limpit buttons are very simple, they use a push-button to trigger LED light or a vibration motor. I decided to use a push-button rather than a switch so that they are only active when touched/pushed.
that is exactly what is inside of them. check them out on instructables dot come
Plusea 2 years ago