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    DHT22 Temperature and Humidity Sensor


    DHT-22 is a humidity and temperature sensor with read out over single wire digital interface. The sensor is already calibrated and doesn’t need extra components so you can measure relative humidity and temperature right away.

    • 3 to 5V power and I/O
    • 2.5mA max current use during conversion (while requesting data)
    • Good for 0-100% humidity readings with 2-5% accuracy
    • Good for -40 to 80°C temperature readings ±0.5°C accuracy
    • No more than 0.5 Hz sampling rate (once every 2 seconds)



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