apuntes_Arduino/sensores/dht21/dht21.ino
2022-04-04 17:41:38 -04:00

28 lines
605 B
C++
Executable File

#include <DHT.h>
#define DHTPIN 4 //DHT21
#define DHTTYPE DHT21
DHT dht21(DHTPIN,DHTTYPE);
float temp, hum;
void setup() {
Serial.begin(9600);
dht21.begin();
}
void loop() {
temp = dht21.readTemperature();
hum = dht21.readHumidity();
// Comprobación erres de lectura
if (isnan(hum) || isnan(temp)) {
Serial.println("Error obteniendo los datos del sensor DHT11");
return;
}
Serial.print("Humedad: ");
Serial.print(hum);
Serial.println(" %");
Serial.print("Temperatura: ");
Serial.print(temp);
Serial.print(" *C ");
delay(2000);
}