Arduino newbie here, awaiting my kit's arrival in the mail. In the meantime, I started looking over the SparkFun manual.
I'm a programmer, but an electronics newbie, and the manual has nice line-by line explanations of the sketch for each project, but the circuit is tripping me up:
I hope someone would be willing to give me a complete newbie explanation of what's happening in the circuit. Specifically, I don't understand why a wire is needed from the 5V pin on the Arduino to the + row on the bread board? Isn't the current being sent (alternating) from Pin 13? This seems to me like current is coming to the breadboard from 2 different places.
Thank you kindly. I know this is utterly basic :blush: but got to start somewhere!