powering my arduino uno
August 4, 2011
i'd like to make my arduino self-going, i mean that its power doesn't come from the usb cable.
but i dont know what volt i should use..
if i use 3 × 1.5 V is is 4.5V but it needs 5V' then if i power it whit 9v would it explode or someting i dont know how do u guys solve this? and does it actuly matter if i put 9v on it?