DHT11 Digital Temperature and Humidity Sensor

Description:

DH11 is a low-cost digital temperature and humidity sensor. It incorporates a capacitive humidity sensor and a thermistor to measure ambient air and give a digital signal to the data pin (no analog input pin required). It's simple to use, but requires careful timing to collect the data. The only real drawback of this sensor is that you get new data every 2 seconds.

Specifications :

Power and I / O: 3 - 5V
Maximum current: 2.5mA
For the humidity range, 20-80% has an accuracy of 5%
For temperature range 0-50 ° has an accuracy of ± 2 ° C
Sampling rate of 1 Hz (once per second)
Dimensions: 15.5mm x 12mm x 5.5mm

Practical example:

Instructions and example code HERE

Pin out: