ATMEGA328P Pinout, Programming, Features, and Applications
Atmega328 Pinout
voltage reference - Does AREF pin of ATMEGA series consume any current? - Electrical Engineering Stack Exchange
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File:Pinout of ARDUINO Board and ATMega328PU.svg - Wikimedia Commons
Pin diagrams of Atmega328 Microcontroller. | Download Scientific Diagram
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A method of applying a precision reference voltage to an Arduino AREF pin, without accidentally blowing up the processor – Dangerous Prototypes
ATMEGA328P Microcontroller Pinout, Datasheet, Schematic and Uses - Jotrin Electronics
Barebones ATMEGA328 Circuit and the Conflict Between Pins warning - Software - KiCad.info Forums
Odd behaviour at AREF pin - General Electronics - Arduino Forum
ATMega328P Microcontroller Pinout, Pin Configuration, Features & Datasheet
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![Solved] ATmega328 on PCB - General Electronics - Arduino Forum](https://europe1.discourse-cdn.com/arduino/original/4X/e/c/5/ec53170f28c2fbe66b9cba67343e230a2e835180.png "Solved] ATmega328 on PCB - General Electronics - Arduino Forum")