DHT22 AM2302 Digital Temperature and Humidity Sensor module حساس حرارة ورطوبة
|
Specification |
|
|
Sensor Type |
Digital output (calibrated,
capacitive) |
|
Measurement Range |
Humidity: 0-100% RH ±2% Temperature: -40~80°C ±0.5°C |
|
Resolution |
Humidity: 0.1% RH Temperature: 0.1°C |
|
Response Time |
Humidity: 2s (63%) Temperature: <5s |
|
Sampling Rate |
0.5Hz (1 reading per 2 seconds) |
|
Operating Voltage |
3.3V-6V DC |
|
Current Draw |
1.5mA (avg), 2.5mA (peak) |
|
Signal Protocol |
Single-wire serial (modified I²C) |
|
Cable Length |
30cm standard (shielded) |
|
Connector |
3-pin Dupont (VCC/DATA/GND) |
|
Housing |
Plastic cap with hydrophobic
membrane |
|
Dimensions |
15mm × 21mm × 8mm (PCB) |
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