Uploaded January 2017 | Updated September 2026, 2 weeks ago

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In this tutorial we will learn how to use the DHT11 or the DHT22 sensor for measuring temperature and humidity. And we will see the value output of the DHT sensors on both the serial monitor and the LCD screen.The LCD screen component is optional. With this tutorial you can also print on a serial monitor. Code and circuit diagram are compatible within both sensors.

Required Hardware:
Arduino Board :
goo.gl/Rqc5w2
amzn.to/2LZr6t4
DHT11:
goo.gl/n9qv8K
amzn.to/39qXnC6
DHT22:
goo.gl/W5Qo9p
amzn.to/31tNK13
LCD Display:
goo.gl/SxH8Jx
amzn.to/3bbBgzu
Potentiometer:
goo.gl/MPwcEM
amzn.to/3dlgYq1
Breadboard :
goo.gl/GjpqVW
amzn.to/3qxLxwm
Jumper Wires
amzn.to/3doetmT

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The DHT sensors have four pins, VCC, GND, data pin and a not connected pin which has no usage.

From left to right:
1 - VCC (5V)
2 - Signal
3 - NC Not connected
4 - GND

DHT Sensors Library:
playground.arduino.cc/Main/DHTLib

Download Source Code: create.arduino.cc/editor/mertarduinotech/37dd464f-49b6-45ab-8f90-09915ea3b144/preview

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