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I was mostly concerned about giving it too much power and blowing something. I gather the on board regulator prevents that.<br><br><div>> Date: Thu, 21 Jul 2011 17:03:37 -0400<br>> Subject: Re: [Lab] arduino power adapter rating<br>> From: jeanmarc.leblanc@gmail.com<br>> To: darcy@siteware.com<br>> CC: mikeysorensen@hotmail.com; lab@artengine.ca<br>> <br>> sorry that is if its running at 1.8V but it would be very small still<br>> <br>> Jean-Marc Le Blanc<br>> ---<br>> <br>> "Do you pine for the nice days of Minix-1.1, when men were men and<br>> wrote their own device drivers?" Linus Torvalds<br>> <br>> <br>> <br>> <br>> On Thu, Jul 21, 2011 at 5:01 PM, Jean-Marc LeBlanc<br>> <jeanmarc.leblanc@gmail.com> wrote:<br>> > should be good your arduino. the ATMega 168 I takes less than 5 ma.<br>> > So the power supply will be mostly for powering every thing else you<br>> > will have hooked up to it.<br>> ><br>> > Jean-Marc Le Blanc<br>> > ---<br>> ><br>> > "Do you pine for the nice days of Minix-1.1, when men were men and<br>> > wrote their own device drivers?" Linus Torvalds<br>> ><br>> ><br>> ><br>> ><br>> > On Thu, Jul 21, 2011 at 4:50 PM, Darcy Whyte <darcy@siteware.com> wrote:<br>> >><br>> >> I don't think it matters.<br>> >> There's no such thing as too much amperage. Your arduino will only draw what<br>> >> it needs.<br>> >> I'm sure you'll be fine with that one for a while.<br>> >> What are you planning on running from the arduino?<br>> >><br>> >> On Thu, Jul 21, 2011 at 4:43 PM, mike sorensen <mikeysorensen@hotmail.com><br>> >> wrote:<br>> >>><br>> >>> Just got the arduino duemilanove. What are people using for a power<br>> >>> adapter? I picked an adapter that runs at 9V since the manual suggest<br>> >>> anywhere from 7-12V. It doesn't mention anything about amperage. I tried<br>> >>> searching google and get anything from 40 mA to 1 amp. My adapter is rated<br>> >>> 500mA. Does this sound reasonable? Too much? not enough?<br>> >>><br>> >>> mike<br>> >>><br>> >>> _______________________________________________<br>> >>> Lab mailing list<br>> >>> Lab@artengine.ca<br>> >>> http://artengine.ca/mailman/listinfo/lab<br>> >>><br>> >><br>> >><br>> >> _______________________________________________<br>> >> Lab mailing list<br>> >> Lab@artengine.ca<br>> >> http://artengine.ca/mailman/listinfo/lab<br>> >><br>> >><br>> ><br></div>                                            </div></body>
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