Instructables

Power the Arduino alone

Heys guys, Ive been using the arduino(without any shields) just playing around with LED's. I want too control my arduino without it being plugged in the computer via USB. So how would I do that. Should I use a battery pack or a 9V attached to the jack hole?
thanks guys

tstupple2 years ago
9v into the powerjack is te easiest, the converter is only a couple of euro/dollars but they come in really handy for you projects in the future.
vek11 (author)  tstupple2 years ago
Okay. Right now, i'm playing around with LED's, and I have resistors on them. Should I increase the resistance or is there still 5v coming out of the pins?
Just remember not to plug into vIN, that is unregulated. Also, you can put in 6-20V (for safety and stability just use 9-12V) with - connected to a GND pin and + connected to VIN. That will also power it.
Just remember not to plug into vIN, that is unregulated. Also, you can put in 6-20V (for safety and stability just use 9-12V) with - connected to a GND pin and + connected to VIN. That will also power it.
tstupple vek112 years ago
It's remains at 5v, so there no need to change
vek11 (author)  tstupple2 years ago
Thank you:)