The DHT22 is a digital temperature et humidity sensor very similar to DHT11 but slightly more accurate. It is fairly simple to use be the only downside is that you can grab data once every 2 seconds.
First pin (left) is for power supply, second pin for data signal and pin 4 (right) is for GND.
- input voltage: 3 V or 5 V
- output signal: digital
- sampling rate: 0.5 Hz
- humidity range: 0 to 100% (0.1% resolution)
- temperature range: -40C to +80C (0.1C sensibility)
- pin spacing: 2.54 mm
- 1x DHT22 sensor
|Dimensions L x W x H||25.1 mm x 15.1 mm x 7 mm|