Step 3: Test it.

to test it, simply download the code "test_arduino_LED.zip" and upload it to your arduino board, then connect the LEDs into pins 8 and 9  and  11 and 12.
<p>Yes thanks for the link to the LED Resistor Calculator. It has proven to be a real time saver for me. Good work!</p>
Instructable was worth it for that web page alone for educational purposes. Not fond of advertisements.

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Bio: Interested in all kind of projects, mainly electronics but other stuff too! I try t publish everything I make, eventhough this is not always possible ... More »
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