#include <DHT.h>;

#define dht_pin A0
#define dht_type DHT22
DHT dht(dht_pin, dht_type);

void setup() {
  // put your setup code here, to run once:
  Serial.begin(9600);
  dht.begin();
}
long lastTime = 0;
void loop() {
  // put your main code here, to run repeatedly:
  if (millis() > lastTime + 300*1000)
  {
    float t = dht.readTemperature();
    Serial.print("Nhiệt độ: ");
    Serial.println(t);
    lastTime = millis();
  }
}