DHT22 Temperature and Humidity Sensor Module

DHT22 (AM2302) – Humidity and Temperature Sensor is a low cost humidity and temperature sensor with a single wire digital interface. The sensor is calibrated and doesn’t require extra components so you can get right to measuring relative humidity and temperature.

Features:

• 3.3-5V Input
• 1-1.5mA measuring current
• 40-50 uA standby current
• Humidity from 0-100% RH
• -20 – 80 degrees C temperature range
• +-2% RH accuracy
• +-0.5 degrees C
• Pin Mapping (When the Sensor is kept facing you, left most pin is Pin 1)
• VDD power supply (3.5-5.5V)
• SDA serial data – bidirectional
• NC NC
• GND

Pin Identification: