TEMPERATURE AND HUMIDITY SENSOR DHT22
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Product Code:
SG-JX-DHT22 Availability:
50
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Price:
S$ 8.90
Qty
TEMPERATURE AND HUMIDITY SENSOR DHT22
DHT22 is a compound digital temperature and humidity sensor which outputs calibrated digital signals.
DHT22 comes with very high reliability and excellent long-term stability.
DHT22 includes a capacitive moisture sensor and a NTC temperature measuring element which is connected
to a high-performance 8-bit microcontroller, resulting an excellent quality, super fast response time, strong
anti-interference ability and extremely cost-efficient.
Compared with SHT10 temperature and humiditiy sensor, DHT22 enjoys a higher precision and lower price,
making it an ideal choice for mid price range, high performance temperature & humidity sensors.
If used together with Arduino expansion boards, you’ll easily get interactives of correlation between temperature and humidity perception.
Pin Identification and Configuration
| No: | Pin Name | Description |
| For DHT22 Sensor | ||
| 1 | Vcc | Power supply 3.5V to 5.5V |
| 2 | Data | Outputs both Temperature and Humidity through serial Data |
| 3 | NC | No Connection and hence not used |
| 4 | Ground | Connected to the ground of the circuit |
DHT22 Specifications
- 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%
Tags: TEMPERATURE AND HUMIDITY SENSOR DHT22