#include <DHT.h>             // Library for DHT Sensors

#define DHTPIN 21          // Pin where the DHT22 is connected
#define DHTTYPE DHT22      // Type of DHT sensor
DHT dht(DHTPIN, DHTTYPE);  //  Define DHT Library object as dht


void setup() {
  Serial.begin(115200);    // Serial Monitor 
  dht.begin();             // Init DHT Sensor
  }

void loop() {
  float temperature = dht.readTemperature();  // Read temperature in Celsius
  float humidity = dht.readHumidity();       // Read humidity
  Serial.print("Temp: " + String(temperature, 2) + "°C  ");
  Serial.println("Humidity: " + String(humidity, 1) + "%");

  delay(1000);     //Thingspeak Free account limit is 15sec. dont send before this time.
}