DHT22 output calibrated digital signal. It utilizes exclusive digital-signal-collecting-technique and humidity
sensing technology, assuring its reliability and stability.Its sensing elements is connected with 8-bit single-chip
Getting started DHT22/AM2302 Digital Temperature and Humidity Sensor
In this tutorial you will learn how to use this sensor with Arduino uno. The room temperature & humidity will be printed to serial monitor.
So, let’s get started!
Step1: Hardware required
For this tutorial you will need:
Step2: Connecting the hardware
Step4: Upload the sample sketch
Step3: Making the code and Upload it!
open the sample sketch that is located in file>examples>DHT sensor library>DHTtester. and upload it. as shown below
Step5: Testing the circuit
Open the serial monitor from tools menu of Arduino IDE.