Arduino Uno 5 or 5-9v??

Hi guys, I'm very new to this stuff so I have a question. I have a 5v Samsung charger and a 5-9v Samsung fast charger. Can i use either of those to keep my arduino running for at least a week or is that dangerous?? And can I use the standard USB to A-B cable to connect it? :)

The 5V charger will work just fine plugged into the usb connector. The 5-9V fast charger will only output 5V into the arduino. Many people use supplies just like that. The fast charger will only output 5V on the usb connector to an arduino. The device it is plugged into determines if 9V can be output.

You can provide up to 12volts for your arduino.

But you need to learn how to provide the supply for your arduino.

if you have exact 5volt then you can connect 5volt pin in arduino.

if you have above 5volt then you only connect Vin pin or RAW pin or 12mm input jack of arduino. don't provide above 5volt for your arduino.

Some arduino device operating voltage is 3.3. this devices only wants 3.3volts not 5 volts.

Becareful..

Ok, thanks for the help. Just to make sure I understand you guys. So it's OK then?

01fannar: Ok, thanks for the help. Just to make sure I understand you guys. So it's OK then?

Yes. He was talking other ways to power the arduino

Oh ok, thank you :)