In this Instructable, I will show you how to make a USB powered L.E.D. light that can fold away into the size of an X-it Mints tin, and can easily fit in your pocket.
If you like it, be sure to + it and vote for me in the contest!
The materials and tools you will need are:
USB cable (salvaged)
Soldering Iron and Solder
X-it Mint tin
Calculated Resistor (Total Voltage - L.E.D.s Voltage / Amperage)
Tin Snips or "Metal Chipper"
If you like it, vote for it in the "Pocket-Sized" contest (the contest closer is on my birthday, i couldn't believe it :P)
Step 1: Preparing USB Wire
Before i start, i don't know how to embed a video into an Instructable, so i will just put a link to the page, until someone tells me how: http://www.youtube.com/watch?v=ocYiEhKEZHI
First, we will need to take the rubber insulation off the "plug" part of the USB cable, so it will fit in the mint tin.
WARNING: Doing this type of project may become addicting, and you also need to be really careful when using a knife, i almost cut myself.
As you can see, I'm experiencing difficulties with the tag tool, so i will explain up here. in the first picture, you will see that i am cutting the rubber off of the USB part of the wire. In the second picture, I'm done doing that, see how you can see the metal, that means it is good.
Step 2: Strip the Wire
Next, you will need to strip the wire. Pretty self-explanotory. You will also need to strip the red and black wires inside of the bunch, and insulate the white and yellow (?the other 2) to make sure they don't touch anything.
Step 3: Add Solder
Add solder to the red and black wires and to the leads of the 1. L.E.D and 2. resistor. Next, solder the red wire to the anode of the L.E.D. and solder the black wire to one lead of the resistor. Then you will need to solder the cathode of the L.E.D. to the other lead of the resistor. My resistor was already soldered.
Step 4: Cut the Tin
You will need to make a hole for the wire and a hole for the L.E.D. I used "metal chippers", put a drill, it a file, or even tin snips will be good.
Step 5: Insulate the Tin and Other Taping
You will need to insulate the tin with black electrical tape. Insulate everything that might contact anything else. You will also insulate the L.E.D. with tape. Next tape the L.E.D. into the tin with the L.E.D. peeking out of the hole you made for it.
Step 6: Plugging Into Computer to Test, Winding, and Putting Into Pocket
Plug into your computer, if you did everything right, it should light. Next few pictures, is about winding it up, and after that, How to slide it into your pocket. Thanks a lot for reading and if you like it, vote for it.