The setup function will only run once after each power-up or reset of the Arduin

Question

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Explanation / Answer

The setup() function is called when a sketch starts. Use it to initialize variables, Pin modes, start using libraries etc..

The setup function will only run once, after each power up or reset of the Ardino board.

Ex:

int buttonPin = 3;

void setup()

{

Serial.begin(9600);

pinMode(buttonPin, INPUT);

}

void loop()

{

........ // statements

}

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