DHT22 AM2302 Digital Temperature and Humidity Sensor
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DHT22 AM2302 Digital Temperature & Humidity Sensor is a low-cost digital temperature and humidity sensor. It uses a capacitive humidity sensor and a thermistor to measure the surrounding air and spits out a digital signal on the data pin (no analog input pins needed).
Its fairly simple to use, but requires careful timing to grab data. The only real downside of this sensor is you can only get new data from it once every 2 seconds, so sensor readings can be up to 2 seconds old. Simply connect the first pin on the left to 3-5V power, the second pin to your data input pin and the rightmost pin to ground. Although it uses a single-wire to send data it is not Dallas One Wire compatible! If you want multiple sensors, each one must have its own data pin!
Simply connect the first pin on the left to 3-5V power, the second pin to your data input pin and the rightmost pin to ground. Although it uses a single-wire to send data it is not Dallas One Wire compatible! If you want multiple sensors, each one must have its own data pin!
Features:
- Type: AM2302.
- Ultra-Low Power.
- No Additional Components.
- Long-Distance Signal Transmission.
- All Calibration, Digital Output & Completely Interchangeable.
- Relative Humidity & Temperature Measurement.
- Humidity Measurement Precision: 2-5% RH.
- Temperature Measurement Precision: 0.5 deg C.
Specifications:-
| Model |
AM2302 |
| Power supply |
3.3-5.5VDC |
| Operating range |
humidity 0-100%RH |
| Accuracy |
humidity 2%RH (Max 5%RH) |
| Humidity Measurement Precision |
2-5% RH |
| Length (mm) |
33 |
| Width (mm) |
15.5 |
| Height (mm) |
8 |
| Weight (gm) |
3 |
Package Includes:
1 x DHT22 AM2302 Digital Temperature & Humidity Sensor.
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