Introduction :
Temperature & Humidity Sensor Module (DHT22) is low-cost digital temperature and humidity sensor.
It uses a capacitive humidity sensor and a thermistor to measure thsurrounding air.
Features :
- Operating Voltage: 3.5V to 5.5V
- Operating current: 0.3mA (measuring) 60uA (standby)
- Output: Serial data
- Temperature Range: -40°C to 80°C
- Humidity Range: 0% to 100%
- Resolution: Temperature and Humidity both are 16-bit
- Accuracy: ±0.5°C and ±1%
Applications:
- Weather forcasting.
- Â Home Automation.
- Weather control applications.