DHT22/AM2302 Digital Temperature and Humidity Sensor Replace SHT10 SHT11 SHT15 robotic.icu

robotic.icu: DHT22/AM2302 Digital Temperature and Humidity Sensor Replace SHT10 SHT11 SHT15
Posted in: Specs | by Brian Taylor | 2020 Feb 04


DHT22

The DHT22 is a recent contribution to the lineup of joint humidity/temperature sensors. It is particularly attractive to DIYers thanks to its low cost, which is around $10. It spans an impressive range of 0% to100% relative humidity, and -40° C to 125° C (that's -40° F to 257° F).

DHT22/AM2302 output calibrated digital signal. It applies exclusive digital-signal-collecting-technique and humidity sensing technology, assuring its reliability and stability. Its sensing elements are connected with 8-bit single-chip computer. Every sensor of this model is temperature

Origin:	CA, United States
Delivery:	11-09, 11-10
datepaid:	2020-11-03
Received:	2020-11-12
Quantity:	2pcs
Price:	3.50
Shipping:	0.00
Total:	7

compensated and calibrated in accurate calibration chamber and the calibration-coefficient is saved in type of programmed in OTP memory, when the sensor is detecting, it will cite coefficient from memory. Small size & low consumption & long transmission distance (100m) enable AM2302 to be suited in all kinds of harsh application occasions. Single-row packaged with four pins, making the connection very convenient. 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 (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 when using our library, sensor readings can be up to 2 seconds old.

This device is on i2c address: NA

Package Included: 1