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DHT22/AM2302 Humidity/Temp
DHT22
Aosongsensor environment
The DHT22 (AM2302) is a low-cost digital sensor that measures relative humidity and temperature. It features a calibrated digital signal output, long-term stability, and a single-bus communication interface, making it suitable for various applications.
In stock
Specifications
15- Operating Voltage
- 3.3 V
- Operating Voltage
- 6 V
- Supply Current
- 1 mA
- Supply Current
- 1.5 mA
- Standby Current
- 40 uA
- Interface
- Single-bus
- Humidity Range
- 0-100%RH
- Temperature Range
- -40-80 Celsius
- Humidity Accuracy
- +-2 %RH
- Temperature Accuracy
- +-0.5 Celsius
- Humidity Resolution
- 0.1 %RH
- Temperature Resolution
- 0.1 Celsius
- Sensing Period
- 2 s
- Transmission Distance
- 20 m
- Package
- 4 pins
Pinout
4| Pin | Name | Functions | Notes |
|---|---|---|---|
| 1 | VDD | POWER | Power supply |
| 2 | DATA | GPIOUART | Signal output |
| 3 | NULL | — | Not connected |
| 4 | GND | GND | Ground |
Interactive pinout
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DHT22
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