I am looking for the schematic for the Atmel Chips on the Arduino Uno. I am unsure if I should contact an Atmel Rep but I figured I start here in this forum.
I'd like to know what the chip has internally but I also have a unique problem I am trying to solve.
I have an AC wave form that has been rectified to +/- 2.5v square wave and I want to put this into one of the analog inputs of the chip. I am using the square wave to control a Digital output.