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Step 4 Add the breadboard, arduino, and BlinkM

Before we add the breadboard, we need to insulate the battery contacts from the metal breadboard backing (that is, if you have the metal plate stuck to yours. If not, skip this step). Put some scotch tape over all the metal contacts to make sure they are insulated. We don't want any exposed wire.

Now glue down (I used hot glue) the breadboard on top of the battery compartment. Luckily for us, it happens to fit perfectly.

Now plug in the positive (+) and negative (-) wires from step 2 into one of the breadboard's positive and negative power strips.

Now we can connect the arduino and the blinkm together. Here's the pin connections:

• A5 - Clock (labeled 'c' on the BlinkM)
• A4 - Data (labeled 'd' on the BlinkM)

And one you've done that, connect the UNREGULATED VCC (+) to the 'VIN' pin on the arduino, and the REGULATED VCC to the (+) pin on the BlinkM. Then connect GND on the arduino and BlinkM to the GND on the power strip, and bridge both GND power strips together. BE CAREFUL not to mix up these connections, or you could fry the BlinkM.