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Step 6(Optional) Power indicating LED
This is a little 'trick' used by people, I understand, for troubleshooting purposes. You add an LED (and resistor of course) to the power part of the circuit, so that if your project isn't working, you can quickly identify if the circuit is getting power or not.
Just hook up your resistor (the one I used on mine, in the picture is a 510 OHM resistor) as shown in the photos. Remember with LEDs that they do have polarity - the short leg is the negative one, and the long one is the positive one. So make sure the short one is the one connected to the ground (black) rail.
One of the pictures shows the circuit plugged in, and the LED on.
There you go. Again, I'm not an expert, but it seems very logical that you would want to do this, and I'm going to do this step on the final version of my first Arduino project.
Read on to the next step if you want to see a real simple way of seeing if you've got everything on your breadboard right.
Just hook up your resistor (the one I used on mine, in the picture is a 510 OHM resistor) as shown in the photos. Remember with LEDs that they do have polarity - the short leg is the negative one, and the long one is the positive one. So make sure the short one is the one connected to the ground (black) rail.
One of the pictures shows the circuit plugged in, and the LED on.
There you go. Again, I'm not an expert, but it seems very logical that you would want to do this, and I'm going to do this step on the final version of my first Arduino project.
Read on to the next step if you want to see a real simple way of seeing if you've got everything on your breadboard right.
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