DHT22 Temperature and Humidity Monitor Using Arduino Nano With Hc-05

This project uses a DHT22 temperature and humidity sensor, an Arduino Nano, and a 16×2 LCD to measure and display the surrounding temperature and humidity.

The DHT22 sends the temperature and humidity readings to the Arduino Nano. The Arduino processes the readings and displays them on the LCD.

1. Arduino Nano
2. Deshbot shield
3. DHT22 sensor
4. 16×2 LCD display
5. Connecting wires
6. USB cable

The DHT22 measures the temperature and humidity of the surrounding environment.

The sensor sends this information to the Arduino Nano through the DATA pin connected to A5.

The Arduino reads the sensor values and displays:

1. Temperature in °C
2. Humidity in %

The LCD continuously updates the readings approximately every 2 seconds.

1. Indoor temperature monitoring
2. Humidity monitoring
3. Weather stations
4. Smart-home systems
5. Greenhouse monitoring
6. Environmental monitoring
7. IoT projects

The Arduino Nano successfully reads the DHT22 temperature and humidity sensor and displays the measured values on the bluetooth app

Example display: