Exploring Arduino

Exploring Arduino

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all digital inputs use a pullup or pulldown resistor to set the a€œdefault statea€ of the input pin. Imagine the circuit in Figure 2-5 without the 10kIc resistor. In this scenario, the pin would obviously read a high value when the button is pressed.

Title:Exploring Arduino
Author:Jeremy Blum
Publisher:John Wiley & Sons - 2013-07-16


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