PRÁCTICA: Entrada y salida digital. 20 Octubre 2017

SEGUIDOR

int ledPin = 13; // LED connected to digital pin 13

int inPin = 12;   // pushbutton connected to digital pin 7

int val = 0;     // variable to store the read value

void setup()

{

  pinMode(ledPin, OUTPUT);      // sets the digital pin 13 as output

  pinMode(inPin, INPUT);      // sets the digital pin 7 as input

}

void loop()

{

  val = digitalRead(inPin);   // read the input pin

  digitalWrite(ledPin, val);    // sets the LED to the button's value

}

SEGUIDOR: EJEMPLO BOTON

const int buttonPin = 2;     // the number of the pushbutton pin

const int ledPin =  13;      // the number of the LED pin

int buttonState = 0;         // variable for reading the pushbutton status

void setup() {

  // initialize the LED pin as an output:

  pinMode(ledPin, OUTPUT);     

  // initialize the pushbutton pin as an input:

  pinMode(buttonPin, INPUT);    

}

void loop(){

  // read the state of the pushbutton value:

  buttonState = digitalRead(buttonPin);

  // check if the pushbutton is pressed.

  // if it is, the buttonState is HIGH:

  if (buttonState == HIGH) {    

    // turn LED on:   

    digitalWrite(ledPin, HIGH); 

  }

  else {

    // turn LED off:

    digitalWrite(ledPin, LOW);

  }

}

INVERSOR

int ledPin = 13; // LED connected to digital pin 13

int inPin = 12;   // pushbutton connected to digital pin 7

int val = 0;     // variable to store the read value

void setup()

{

  pinMode(ledPin, OUTPUT);      // sets the digital pin 13 as output

  pinMode(inPin, INPUT);      // sets the digital pin 7 as input

}

void loop()

{

  val = digitalRead(inPin);   // read the input pin

  if (val==LOW){

 digitalWrite(ledPin, HIGH);

  } else {

 digitalWrite(ledPin, LOW);

}

}