Hi! I decided to make LED Throwie 2.0 because the LED Throwie hasn't been updated in a while. LED Throwie 2.0 is a LED Throwie that has two color LEDs and an off switch to save battery life. You will need the items shown in the picture.
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Step 1: Attach the Wires to the LEDs
Pretty self explanatory. If you want, you can hot glue or solder the wires to the LEDs. I recommend this because it will make the LED more sturdy when thrown. I found that you can easily cut fine wire with nail clippers.
Step 2: Attach the LEDs
Attach the positive leads for the LEDs to each lead on the outside of the switch. Just do not connect the LEDs to the middle. In the middle, just connect a wire, but do not connect it to anything. Attach the ground leads for the LED together. You should have something like in the picture.
Step 3: Connect the Battery
Tape the wire in the middle of the switch firmly to the positive side of the coin cell battery. Tape the ground wire (where the two LEDs are connected) to the negative side of the battery. I do not recommend glueing the wires to the battery so you can change the battery easily. Test your Throwie by sliding the switch. Right should be one color, left should be other color, and middle should be off. If it doesn't work, check your connections.
Step 4: Tape Everything Together
Tape the switch, magnet, battery, and LEDs together. Test it one more time. If it doesn't work, make sure no wires are accidentally touching or nothing came loose while taping. Enjoy your LED Throwie!!