The DHT22 is a basic, 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. Simply connect the first pin on the left to 3-5V power, the second pin to your data input pin and the right most pin to ground. Compared to the DHT11, this sensor is more precise, more accurate and works in a bigger range of temperature/humidity, but its larger and more expensive.
3 to 5V power and I/O
Good for -40 to 125°C temperature readings ±0.5°C accuracy
Good for 0-100% humidity readings with 2-5% accuracy
No customer reviews for the moment.
NO registration required!
If the question you have has not yet been answered here, use the form below to ask something about this addon.