AM2302B(DHT22) Single Bus Digital Temperature And Humidity Sensor Module Probe AM2302 Adapter BoardItem NO.: AM2302B(DHT22)

AM2302 Temperature And Humidity Sensor

Product Information:

AM2302B humidity sensitive capacitor digital temperature and humidity module is a temperature and humidity composite sensor with calibrated digital signal output. It applies special digital module acquisition technology and temperature and humidity sensing technology to ensure high reliability and excellent long-term stability of the product. The sensor consists of a capacitive humidity sensing element and a high-precision temperature measuring element, which are connected with a high-performance 8-bit microcontroller. Therefore, this product has the advantages of excellent quality, ultra fast response, strong anti-interference ability, and high cost performance. Each sensor is calibrated in an extremely accurate humidity calibration room. The calibration coefficients are stored in the form of program in the single-chip microcomputer, and these calibration coefficients are called during the processing of the detection signal inside the sensor. Standard single bus interface makes system integration easy and fast. Its ultra small size, extremely low power consumption and signal transmission distance of more than 20 meters make it a choice for various applications and demanding applications. The product is 3-lead (single bus interface), which is convenient for connection.

Product Parameters:

●Name: AM2302B temperature and humidity module

●Power supply voltage: DC3.3-5.5V

●Output signal: single bus digital signal

●Display resolution: 0.1 ℃ or 0.1% RH

●Temperature detection range: - 40-80 ℃

●Humidity detection range: 0-99.9% RH

●Humidity detection accuracy: ± 2% RH

●Temperature detection accuracy: ± 0.5 ℃

●Acquisition cycle: 1/e (63%) ＜ 5s

●Storage temperature range: 0-80 ℃

●Storage humidity range: below 95% RH (non condensing)

●Net weight of product: 16.8g

●Product shell material: PC plastic (high mechanical property, fatigue resistance, low creep, heat aging resistance, economic resistance, excellent insulation performance)

Pin Description:

1 -- Red VDD (power supply 3.3V-5.5V)

2 -- Yellow SDA (serial data, two-way port)

3 -- NC (empty foot)

4 -- Black GND (ground)