Arduino Uno Humidity Sensor (DHT11)

This project demonstrates how to use a DHT11 humidity sensor with an Arduino Uno to measure the relative humidity in the environment.

The sensor provides digital output that is read by the Arduino, and the humidity value is displayed on the serial monitor.

Components Needed

• Arduino Uno
• DHT11 Humidity Sensor
• Jumper Wires
• Breadboard

Block Diagram

Hardware Wiring Explanation:

Connect the DHT11 humidity sensor to the Arduino Uno as described in the circuit setup section.

Software (Arduino IDE):

Open the Arduino IDE and create a new sketch.

Copy and paste the provided Arduino code into the sketch.

Library Installation:

If not already installed, download and install the DHT sensor library in the Arduino IDE. This library provides functions to interact with DHT sensors.

This library provides functions to interact with DHT sensors.

Upload the code to the Arduino Uno.

Monitor the Output:

Open the serial monitor with a baud rate of 9600.

Observe the serial monitor output displaying the humidity readings.

Applications

Notes

Ensure the DHT11 sensor is correctly connected to the Arduino Uno and powered.

The DHT sensor library simplifies communication with the sensor and provides reliable humidity readings.

Calibrate the sensor as necessary based on your specific environmental conditions.