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Hey guys!

New to the scene and just have a simple I/O question.

On the Arduino website, under http://arduino.cc/en/Tutorial/Button, the image used to build the circuit has one red wire and one black wire stretching across the board from one end to the other. I was wonder why? I've gotten it to work outwith it, just not sure what those red and black wires were used for.



* button.png (42.13 KB, 729x283 - viewed 11 times.)

* button.jpg (113.28 KB, 478x640 - viewed 8 times.)
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its just connecting both sides of the breadboard to power and ground, its not always convenient to power everything from the same side.

I have wires like that on my breadboard too, I dont think I had removed them in a few years until I had to mess with something that had 3.3v and 5 volts on the breadboard at the same time.
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Ah, gottcha! Thanks!  smiley-grin
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