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What is Arduino Uno ATmega328?

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Arduino Uno is a microcontroller board based on 8-bit ATmega328P microcontroller. ... Arduino Uno has 14 digital input/output pins (out of which 6 can be used as PWM outputs), 6 analog input pins, a USB connection, A Power barrel jack, an ICSP header and a reset button.Feb 28, 2018');})();(function(){window.jsl.dh('_jwF0YJOlKsLw-wSFxoGwBA43','
It will work fine on 12V. You do not have to split it, just supply 12V to the power connector on the Arduino board, it will take what it needs. The only problems you may have are if the motor takes such a big current that the voltage drops too low to supply the Arduino.Jan 27, 2011
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The Arduino Uno is a microcontroller board based on the ATmega328 (datasheet). It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator, a USB connection, a power jack, an ICSP header, and a reset button.

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