4x4x4 LED cube

Step 4 Wiring

Now theres a lot of wires to connect so make sure you put every one in the right spot. Insert your newly constructed cube into your protoboard and solder the positive leads from the columns in. Beside each lead that you just soldered in, insert a 100 ohm resistor and solder one end of it to the lead. The other end of the resistor has a wire connected to it that will later connect to your arduino. There will end up being 16 of these. Now you will need to solder a wire to the middle of any negative in the top row of your cube and do this for all four of the layers. There will be 4 of these.