#include <DHT.h>
#define DHTPIN 2
#define DHTTYPE DHT22
#define LEDPIN 8
DHT dht(DHTPIN, DHTTYPE );
float temperature;
void setup() {
dht.begin();
pinMode(LEDPIN, OUTPUT);
}
void loop() {
temperature = dht.readTemperature();
if (isnan(temperature)) {
return;
} else {
if (temperature > 40) {
digitalWrite(LEDPIN, HIGH);
delay(1000);
digitalWrite(LEDPIN, LOW);
}
}
delay(1000);
}