Description
Description
The DHT22 is a calibrated digital temperature and humidity sensor designed for accurate environmental monitoring. It uses a single-wire digital interface to provide reliable measurements with minimal external components. Operating over a wide voltage range, it delivers stable performance for both humidity and temperature sensing. The sensor supports a broad measurement range with good accuracy and low power consumption. It is suitable for embedded systems, data logging, and environmental control applications.
Features
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Digital temperature and humidity sensor
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Single-wire digital communication interface
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Factory-calibrated output data
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Wide operating voltage range
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Low measuring current consumption
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Ultra-low standby current
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Full-range humidity measurement
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Wide temperature sensing range
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Stable and repeatable readings
Specifications
- Operating Voltage: 3.36 V DC
- Measuring Current: 11.5 mA
- Standby Current: 4050 A
- Humidity Range: 0100 % RH
- Humidity Accuracy: 2 % RH
- Temperature Range: 40 to 80 C
- Temperature Accuracy: 0.5 C
- Output Signal: Digital (single-wire)
- Calibration: Factory calibrated
- Typical Applications: Environmental monitoring, embedded systems
Links
- DHT22 Datasheet
- DHT22 Digital Temperature and Humidity Sensor 3D Model
Toutrials
- Voltaat Youtube Channel
- ESP32 Tutorial – DHT11/DHT22 (Temperature and Humidity Sensor)
Reviews
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