The DHT11Temperature & Humidity Sensor features a
temperature & humidity sensor complex with a calibrated
digital signal output. By using the exclusive digitalsignal-acquisition
technique and temperature & humidity
sensing technology, it ensures high reliability and
excellent long-term stability. This sensor includes a
resistive-type humidity measurement component and an
NTC temperature measurement component offering
excellent quality, fast response, anti-interference ability
and cost-effectiveness .Weather meter used for
measurement of three weather variables: wind speed,
wind direction and rainfall.The Arduino Nano is a
minute, breadboard-friendly board based on
the ATmega328 (ArduinoNano3.x)orATmega16 (Arduino
Nano 2.x). It lacks only a DC power jack, and works with
a Mini-B USB cable instead of a standard one. Arduino
converts analog values from weather meter to digital
values and given to raspberry pi, hence acts as standard
ADC.