SparkFun Electronics Forum

Posted: **Mon Jul 20, 2009 2:55 am**

Can the Wall Adapter Power Supply (5VDC 1A) be used with Arduino USB Board?

Posted: **Tue Jul 21, 2009 4:40 am**

It may depend on what version of the board you have, but I typically use a 9 or 12 volt supply. The on-board voltage regulator needs a higher input voltage than the actual microcontroller does to operate properly.

I only use the 5VDC adapter when I'm working on a design that lacks a voltage regulator.

Check out the arduino.cc site for the specifications of the board you have.

Posted: **Thu Jul 30, 2009 11:51 am**

Will it work with a car cigarette lighter to USB adapter plugged into the boards USB port??

Posted: **Thu Jul 30, 2009 4:52 pm**

brainwav wrote:Will it work with a car cigarette lighter to USB adapter plugged into the boards USB port??

Yes

SparkFun Electronics Forum

Wall adapter for Arduino USB

Wall adapter for Arduino USB