![]() Once your done, the circuit should look something like this: We’ll be using six digital GPIOs ( 9, 8, 7, 6, 5, 4) on the Arduino Dock (near the jack barrel connector). To finish off the circuit, we need to connect the anodes of our LEDs to GPIOs on the Arduino Dock. Since the two red and blue rails are connected vertically, what we’ve done is connect all of the LED cathodes to the Ground using just one pin on the Arduino Dock. Once you’ve done the above for all six LEDs, let’s connect a jumper wire from the GND rail on the breadboard to a Ground pin on the Omega - those will be labelled GND. We’ll be calling it the Vcc rail often in the future! You can probably guess that the column labelled + will be used to share a power supply. This column will see a ton of use in complicated projects, now and in the future, we’ll call it the GND rail.Connect one end of a 200Ω resistor to the cathode row, and the other end into the column marked. ![]()
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