Instructables

Step 9: Base and soldering resistors:

Picture of Base and soldering resistors:
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For the base is is pretty open ended on what you would like to do.  For mine I simply used a PCB (or glued PCB together) to solder my cube to.  Once i had my cube done i soldered wires from each column to a resistor. Each resistor was connected to another wire that i planed to plug the Arduino into. You will also need a wire soldered of each layer allowing for negative control (no resistor needed). You can make this part look alot better than mine but for time reasons i just soldered it up quick.
 
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ma7moodz2 years ago
Okay Im pretty much stuck here..
Where do I connect the the layer's negative control wires to? (the black wires)
Note: Im very new to arduino