This is generally a small device controlled via arduino which displays temperature and humidity on the lcd.

Electronics needed :-

1. Arduino UNO/ NANO

2. USB cable

3. Lcd 16'2

4. DHT11 Temperature And Humidity Sensor

5. 9v Battery

6. 10k Potentiometer

7. wires

Procedure :-

Step 1. Construct the circuit according to the fritzing sketch.

Step 2. Download the arduino code.

Step 3. Upload the code.

Step 4. Check whether the data is being displayed

or not.

Have fun!