Each attempt yields one of two results, either: a) a dead/incomplete/incorrect circuit (0 Vout) or b) vOut = vIn.
Hey, look at this:http://www.cutedigi.com/product_info.php?cPath=284&products_id=4426&osCsid=6c8f117cf1b4110769ac941f3986803cLook like a familiar circuit?? -5, -10 and +5 from 2 Arduino pins...So it IS pretty practical
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