The Arduino Uno is a microcontroller board based on the ATmega328 (datasheet). It has 14 digital input/output pins (of which 6 c
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The Full Arduino Uno Pinout Guide [including diagram]
Nice drawings of the Arduino UNO and Mega 2560 | Arduino Blog
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4. Arduino Technical Details - Arduino: A Technical Reference [Book]
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Understanding Arduino UNO Hardware Design - Technical Articles
Understanding Arduino UNO Hardware Design - Technical Articles
Arduino Uno Pinout, Specifications, Pin Configuration & Programming
