DHT11 Temperature/Humidity Sensor

Background

The DHT11 is a low-cost weather sensor that contains a capacitive humidity sensor and a thermistor for temperature. It communicates this information over a single data line. To communicate with the chip, we will use two libraries: Adafruit Unified Sensor Library and Adafruit DHT Sensor Library. These libraries support reading humidity, reading temperature (in F and C), and computing the heat index.

 

Hardware Description

Pinout

• + – 5V
• - – GND
• S – connect to any digital pin

 

Software Description

Code Example: https://create.arduino.cc/editor/mjdargen_ravens/8ced4c54-7f36-453b-a7c5-8988e72277c6/preview

 

Resources

• Tutorial: https://learn.adafruit.com/dht