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52 lines (27 loc) · 720 Bytes
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altura.ino
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52 lines (27 loc) · 720 Bytes
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const int EchoPin = 16;
const int TriggerPin = 17;
void setup() {
Serial.begin(115200);
pinMode(TriggerPin, OUTPUT);
pinMode(EchoPin, INPUT);
}
void loop() {
Serial.print("Distancia: ");
Serial.println(distancia(TriggerPin, EchoPin));
delay(1000);
}
int distancia(int TriggerPin, int EchoPin) {
long duracion, distanciaCm;
digitalWrite(TriggerPin, LOW);
//nos aseguramos señal baja al principio
delayMicroseconds(4);
digitalWrite(TriggerPin, HIGH);
//generamos pulso de 10us
delayMicroseconds(10);
digitalWrite(TriggerPin, LOW);
duracion = pulseIn(EchoPin, HIGH);
//medimos el tiempo del pulso
distanciaCm = duracion * 10 / 292 / 2;
//convertimos a distancia
return distanciaCm;
}