DHT22 Digital Temp/Humidity Sensor – AM2302 Module with Adapter

Description

The DHT22 Digital Temp/Humidity Sensor with Adapter is a complete, ready-to-connect solution built around the AM2302 sensor element. It pairs the factory-calibrated DHT22 sensor with a small adapter board that includes the necessary pull-up resistor and a standardized connector, eliminating the need for external components or fragile breadboard connections. The sensor provides digital temperature and humidity readings over a single-wire interface, with a temperature range of -40°C to 80°C (±0.5°C accuracy) and humidity range of 0–100% RH (±2% RH accuracy) . The adapter board typically terminates in a connector such as XH2.54, allowing reliable cable connections to Arduino, Raspberry Pi, ESP32, and other microcontrollers . This combination is well-suited for individual makers building weather stations or home automation systems, as well as business purchasers seeking a dependable, pre-assembled sensing solution for environmental monitoring, HVAC diagnostics, greenhouse control, and educational deployments.

Features

• Complete Adapter Solution: Includes the DHT22/AM2302 sensor mounted on an adapter board with onboard pull-up resistor, ready for immediate use without additional components .

• Factory-Calibrated Digital Output: Individually calibrated sensor with coefficients stored onboard; no user calibration required .

• High Accuracy and Wide Range: Measures -40°C to 80°C with ±0.5°C accuracy and 0–100% RH with ±2% RH accuracy .

• Single-Bus Digital Interface: Requires only one data pin for communication, conserving GPIO resources .

• 3.3V to 5.5V Compatibility: Works with both 3.3V logic systems (ESP32, Raspberry Pi) and 5V systems (Arduino Uno) .

• Standardized Connector: Adapter board provides a stable, pluggable connection point (typically XH2.54) for reliable cable attachment, avoiding loose jumper wires .

Technical Specifications