#include <DHT.h>

#define DHTPIN 4      // Use GPIO 4, 5, or 23 instead of 21
#define DHTTYPE DHT22  

DHT dht(DHTPIN, DHTTYPE);

void setup() {
    Serial.begin(115200);
        dht.begin();
            Serial.println("DHT Sensor Initialized...");
            }

            void loop() {
                Serial.println("Reading data...");
                    
                        float temp = dht.readTemperature();
                            float humidity = dht.readHumidity();

                                if (!isnan(temp) && !isnan(humidity)) {
                                        Serial.print("Temperature: ");
                                                Serial.print(temp);
                                                        Serial.print(" °C, Humidity: ");
                                                                Serial.print(humidity);
                                                                        Serial.println(" %");
                                                                            } else {
                                                                                    Serial.println("⚠️ Sensor error! Check wiring or try another GPIO.");
                                                                                        }

                                                                                            delay(3000);
                                                                                            }