SPECIFICATIONS

DHT22 Module Black

Introduction

DHT22 digital temperature and humidity sensor is a temperature and humidity composite sensor with calibrated digital signal output.
It uses special digital module acquisition technology and temperature and humidity sensing technology to ensure that the product has high reliability and excellent long-term stability.
The sensor consists of a capacitive humidity sensor and a NTC temperature sensor, and is connected with a high-performance 8-bit MCU.
Therefore, the product has the advantages of fast response, strong anti-interference ability and high cost performance.
Each DHT22 sensor is calibrated in the humidity calibration room.
Calibration coefficients are stored in OTP memory in the form of program, which are called in the process of signal processing inside the sensor.
Single line serial interface makes system integration easy and fast.
Small size, low power consumption, signal transmission distance up to 20 meters, making it the best choice for all kinds of applications and even the most applications.

Parameters

Pin Description

VCC: system power supply
GND: system primary and negative
Data: MCU IO port

Warm tips: Do not connect VCC to GND reversely or burn it reversely

Application

This product is widely used in HVAC, testing and testing equipment, automobile, data recorder, consumer goods, automatic control, weather station, household appliances, humidity regulator, medical treatment, dehumidifier, etc.

Package Includes

1PCS DHT22 AM2302 Digital Temperature and Humidity Sensor Module With Cable