How to charge your mp3 player using Lego mindstroms NXT

Step 4 Materials for the Charger

We are going to need a few materials to create our charger and this is what you need:

-Mp3 Player
-USB cable for your mp3 player
-Lego mindstorms NXT servo motor
-Lego mindstorms NXT connector cable
-Various legos
-Female USB port

You also need these tools:

-Soldering iron
-Wire strippers/cutters
-Superglue (optional for step 2)