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Appendix: BreadBoard Power and Arduino Primer 331

3. Plug the Arduino into the computer with a USB cable. The green power light
(marked PWR) on the Arduino board should go on, an orange LED (marked L)
next to pin 13 might start flickering, and the Found New Hardware window
will pop up. To install the drivers that let your computer talk to the Arduino
board, click the recommended option that allows your computer to locate and
install the drivers itself. You’ll go through this twice, because there are two
items that the computer needs to install before it can talk to the Arduino.

4. Once the drivers have been installed successfully, launch the Arduino application
by double-clicking the icon in the folder you downloaded in step 2. Check to
make sure the correct model of Arduino is selected by selecting Tools | Board
from the menu bar and choosing the Arduino Duemilanove, as shown in
Figure A-3.

FIGURE A-3 Select the correct board from the Arduino application.