MAXOFLIFE:
.......
I'm just curious as to why some people say 5v while the website says 7v. I just don't want to screw up my board :~
The "normal way", powering the board through the barrel jack, feeds the power to a voltage regulator. It will take anything from 7 to 20 V, and regulate it to a nice and civilized 5V.
But it has to have some overvoltage to regulate down from, to make those 5V.
..... Or you can feed 5 V directly to the board, bypassing the regulator.