Author Topic: Question Help!  (Read 2305 times)

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Offline radiocrazier

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Question Help!
« on: February 14, 2011, 01:00:59 am »
I have a question, there is microcontroller like AVR or any other chips can make a analog to digital convert,but mine just can test votage range0-5V,is there any way i want to let it test-2.5~+2.5,who can make a special circuit or change a chip but AVR serious :) Thankx!!

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