DHT22 (AM2302) Digital Humidity and Temperature Sensor
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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
