Did I say simple?
This is it, a Flashing LED and a
Button Cell Battery. It only uses a 3 volt battery so it is
completly safe for just about anybody.
Just keep the batteries away from
they can really get hurt if they're
Anybody can make one, just follow these simple
Start by purchasing some
RGB Fast-Blinking LED's
CR2032 3v Lithium 2032 Coin Batteries
You only need one of each for each flasher but it's so much fun to
make them that you'll want plenty.
First, some information you need
LED's have two wires (Leads) coming
out of them. The Negative lead is the Cathode
and the Positive lead is the Anode.
You'll notice a flat spot on the rim on the Cathode side and the
lead is shorter.
Simply identify the + side of the
Battery, position the LED so that the Anode is on the same side as
the + side and slide it on. The LED should start flashing right
away. If not, check your battery polarity, is it correct?
If your LED is flashing then you've
done it. Pat yourself on the back. You've built an electronic
circuit. Now just wrap some tape around the battery and you're done.
It usually lasts a couple of days before the battery dies, at which
time, you can just tape another battery in its place and away you
go. Now it's your turn to figure out what to do with it.
I know what
you can do with it. Get yourself a
Rare Earth Magnet,
tape it on the flasher circuit you built, and throw it on your
fridge... or anything else made of metal. It's called an LED Throwie
and you can read all about them on the internet.