The DHT11 is a relatively cheap sensor for measuring temperature and humidity. This article describes a small library for reading both from the sensor. The DHT22 is similar to the DHT11 and has greater accuracy. However, this library is not suitable for the DHT21 orDHT22 as they have a different data format. Check DHTlib for support of these sensors.
Feature
1. can detect surrounding environment of the humidity and temperature
2. DHT11 sensor adopts
3. humidity measurement range: 20%-95%, humidity measurement error: +-5%
4. temperature measurement range: 0 -50 ℃, measurement error: +-2 degrees
5. working voltage 3.3 V-5 V
6. output form digital output
7. has fixed bolt hole and easy installation
8. PCB size: 3.1 cm * 1.4 cm
Reviews
There are no reviews yet.