#include <DHT.h>

#define DHTPIN 2        // Pin where the DHT22 is connected
#define DHTTYPE DHT22   // Type of DHT sensor
#define LED_PIN 12       // Pin where the LED is connected

DHT dht(DHTPIN, DHTTYPE);

void setup() {
  Serial.begin(115200);
  dht.begin();
  pinMode(LED_PIN, OUTPUT);  // Set LED pin as output
}

void loop() {
  delay(1000);  // Wait for 2 seconds to avoid flooding the serial monitor

  float humidity = dht.readHumidity();       // Read humidity

  // Check if any reads failed and exit early (to try again)
  if (isnan(humidity)) {
    Serial.println("Failed to read from DHT sensor!");
    return;
  }

  if (humidity > 80) {  // adjust the threshold value as needed
    Serial.println("Flood detected!");
    digitalWrite(LED_PIN, HIGH);  // Turn on the LED
  } else {
    Serial.println("No flood detected.");
    digitalWrite(LED_PIN, LOW);  // Turn off the LED
  }
}