The Wee Blinky kit is an easy-to-solder two LED blinker circuit.
It comes with a 9V battery snap, but will work with almost any
voltage from 3V to 12V.
You need to know how to solder for this kit.
It's tiny and it blinks!!
The kit includes:
1 Printed circuit board
You will need 9V battery and soldering kit.