Hello All, Before I start connecting up various components to my Arduino UNO, if i Plug a 12V DC adapter to DC input of arduino. Based on the following picture On the left side power header, -will I still read 3.3 V at the 3.3 PIN -will I still read 5 V at the 5 PIN And read 12V at the VIN p…

Different voltage requirements

system March 31, 2014, 10:52pm 6

So I guess 500ma would be the limit and should rely on voltage divider?

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