Created DHT11 sensor library

examples/ReadTempAndHumidity/ReadTempAndHumidity.ino

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+#include <DHT11.h>
+
+// Create an instance of the DHT11 class and set the digital I/O pin.
+DHT11 dht11(2);
+
+void setup()
+{
+    // Initialize serial communication at 115200 baud.
+    Serial.begin(115200);
+}
+
+void loop()
+{
+    // Read the humidity from the sensor.
+    float humidity = dht11.readHumidity();
+
+    // Read the temperature from the sensor.
+    float temperature = dht11.readTemperature();
+
+    // If the temperature and humidity readings were successful, print them to the serial monitor.
+    if (temperature != -1 && humidity != -1)
+    {
+        Serial.print("Temperature: ");
+        Serial.print(temperature);
+        Serial.println(" C");
+
+        Serial.print("Humidity: ");
+        Serial.print(humidity);
+        Serial.println(" %");
+    }
+    else
+    {
+        // If the temperature or humidity reading failed, print an error message.
+        Serial.println("Error reading data");
+    }
+
+    // Wait for 2 seconds before the next reading.
+    delay(2000);
+}