I am trying to help my 7 year old son design and build a compact circuit that turns on a bright LED light with a mercury switch where the LED remains on (or blinking) for a specific amount of time after the switch has been closed (even if the switch becomes open after initially turning the LED on and starting the timer). The finished product should be small enough to fit into the opening of a 2 liter plastic soda bottle if possible. I am brand new to this and really do not know the terminology to research many of the necessary components that may be needed to complete this project or what may be available within the needed small size requirements for this project. Any help or information will be greatly appreciated.
Thanks in Advance.
IFish
Thanks in Advance.
IFish