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Have you ever made a LED throwie? If you have you know that it will just keep on shining for ever and ever (Or until the batery dies) unless you add a switch. This instructable will show you how to make a LED throwie with a switch. You can use any kind of swich but I used a momentary lever switch. Let's begin!
1 3v Button cell (CR2032 works well)
1 momentary switch (I used a lever swich)
1 3 inch lenghth of wire (stripped at the ends 1/4 inch)
Step 2: The circut diagram
A very siimple circut
Step 3: Build the circut
Tape the Annode of the LED to the positive (+) terminal of the battery. (See pictures1-2) connect the cathode of the LED to the positive (+) terminal of the SWITCH. (See pictures 2-3) connect the negitive (-) terminal of the SWITCH to the negative (-) terminal of the BATTERY. Test the circut by pressing the lever (or flipping the swich). The LED should light up.
Step 4: Making it smaller
Fold it so that the LED is ontop of the battery. Fold the switch on top of that. Now tape the entire thing together to hold it together.