TemperatureLogger/device code - dht22.txt

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#include <DHT22.h>
#define DHTPIN 4
#define DHTTYPE DHT22
DHT22 dht(DHTPIN);
void setup() {
// put your setup code here, to run once:
Serial.begin(115200);
Serial.println("Hello, ESP32!");
}
void loop() {
// put your main code here, to run repeatedly:
float h = dht.getHumidity();
float t = dht.getTemperature();
float f = dht.getTemperature(true);
if (isnan(h) || isnan(t) || isnan(f)) {
Serial.println(F("Failed to read from DHT sensor!"));
return;
}
Serial.print("{ \"tempC\" : ");
Serial.print(t);
Serial.print(", \"tempF\" : ");
Serial.print(f);
Serial.print(", \"tempH\" : ");
Serial.print(h);
Serial.println(" }");
delay(1000); // this speeds up the simulation
}