DHT22 View Datasheet(PDF) - Unspecified
Part Name
Description
MFG CO.
'DHT22' PDF : 10 Pages View PDF
Aosong Electronics Co.,Ltd
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Your specialist in innovating humidity & temperature sensors
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70us voltage-length means 1bit data "1"
Start transmit 1bit data
Start transmit next bit data
Host signal
Sesnor's signal
Single-bus signal
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If signal from DHT22 is always high-voltage-level, it means DHT22 is not working properly, please check the
electrical connection status.
7. Electrical Characteristics:
Item
Condition Min
Power supply DC
3.3
Current supply Measuring 1
Stand-by
40
Collecting
Second
period
*Collecting period should be : >2 second.
Typical
5
Null
2
Max Unit
6
V
1.5
mA
50
uA
Second
9
Thomas Liu (Business Manager)
Email: thomasliu198518@yahoo.com.cn
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