Arduino Uno/Embedded Systems

Discussion in 'Embedded Systems and Microcontrollers' started by RdAdr, Sep 26, 2016.

  1. RdAdr

    Thread Starter Member

    May 19, 2013
    214
    1
    So consider an embedded system like Arduino.

    If it has analog input pins then the voltage that I apply on these pins goes to some analog to digital converter. So the voltage gets sampled.

    But what about the digital input pins? Where does the voltage go? I imagine that it is also sampled but not by an ADC, but by some other circuit that directly uses that value.
     
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