Diferencia entre revisiones de «While statement conditional»

const byte sensor = A0;
const byte pulsador = 2;
const byte led = 9;

//Valores sensor
int min = 1023;
int max = 0;
int actual = 0;

void setup() {
  pinMode(LED_BUILTIN, OUTPUT);
  pinMode(led, OUTPUT);
  pinMode(pulsador, INPUT_PULLUP);
}

void calibra() {
   // turn on the indicator LED to indicate that calibration is happening:
   digitalWrite(LED_BUILTIN, HIGH);
   actual = analogRead(sensor);  //Lee sensor:
   //Guarda maximo
   if (actual > max) {
      max = actual;
   } 
   //Guarda minimo
   if (actual < min) {
      min = actual;
   }
}

void loop() {
   //Mientras esta pulsado calibramos sensor
   while (digitalRead(pulsador) == LOW) {
      calibra();
   }
   digitalWrite(LED_BUILTIN, LOW);  //Fin de calibracion

   sensorValue = analogRead(sensorPin); //Lee sensor

   //Aplica calibracion de sensor
   sensorValue = map(actual, min, max, 0, 255);

   // in case the sensor value is outside the range seen during calibration
   sensorValue = constrain(sensorValue, 0, 255);

   analogWrite(led, sensorValue);  //PWM al LED externo
}