Now that we have completely understood how a DHT22 Sensor works, we can connect all the required wires to Arduino and write the code to get all the data out from the sensor. The following image shows ...

You can use the DHT22 (or AM2302) humidity/temperature sensor and the Arduino UNO board to read data and print it out to the serial monitor or to display it on an LCD ...

This is an Arduino library for the calibrated AM2302/AM2303 digital temperature and relative humidity sensor on a DHT22 breakout PCB. According to the datasheet, the AM2302/AM2303 is a low cost ...

It is designed using a DHT22 sensor ... conditional variable declared in the Arduino programming, if the sensor detects a temperature above 33 degrees Celsius, the Arduino activates a digital output ...