Description:
DHT22 Sensor is a basic, low-cost digital temperature and humidity sensor. DHT22 Sensor uses a capacitive humidity sensor and a thermistor to measure the surrounding air and spits out a digital signal on the data pin (no analogue input pins needed). It's fairly simple to use but requires careful timing to grab data. The only real downside of the DHT22 Sensor is you can only get new data from it once every 2 seconds, so when using our library, sensor readings can be up to 2 seconds old.
Specifications:
- Voltage: 3 to 5V power and I/O
- Current: 2.5mA max current use during conversion (while requesting data)
- Humidity Range: Good for 0-100% humidity readings with 2-5% accuracy
- Temperature Range: -40 to 80°C temperature readings ±0.5°C accuracy
- Sampling rate: No more than 0.5 Hz (once every 2 seconds)
- 4 pins, 0.1' spacing.
Features:
- Relative humidity and temperature measurement.
- Calibrated digital signal.
- Outstanding long-term stability.
- 4 pins are packaged and fully interchangeable.
Package Included:
1 x DHT22 Sensor DHT22 Digital Temperature and Humidity Sensor