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DHT22 Digital Temperature and Humidity Sensor
Regular price
R 90.00
Default Title - R 90.00 ZAR
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For improved temperature and humidity measurement requirements, this DHT22 is what you want.
The name for the DHT22 when in this package shape, is the AM2302.
Good for 0-100% humidity readings with 2-5% accuracy
Good for -40 to 80°C temperature readings ±0.5°C accuracy
Can poll every 2 seconds
Link to Datasheet
Link to Arduino DHTxx Library
Link to another Arduino Playground Library
Link to the Adafruit Library
Link to Example circuit
Example
(Image source
website
)
From your microcontroller:
5V to 1
Data pin to 2
GND to GND
Then download the DHT library from Adafruit
https://github.com/adafruit/DHT-sensor-library
and read from the data pin with
hum
=
dht
.
readHumidity
();
temp
=
dht
.
readTemperature
();
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