Grove – Temperature & Humidity Sensor Pro (DHT22/AM2302)

This DHT22 sensor has a capacitive humidity sensor and a temperature sensor. The humidity sensor measures from 0 to 99.9% RH with 2% accuracy, while the temperature sensor operates between -40 to 80C with 0.5C accuracy. Compared with the DHT11, the DHT22 is more precise and has a wider measurement range.

Thanks to its built-in 8-bit microcontroller, the DHT22 converts the analogue readings from both sensors into digital signals, allowing it to output temperature and humidity data through a single pin for easy use in your projects. It is compatible withArduino(With aGrove – Base Shield)orRaspberry Pi(Only with theGrove-Base HAT)

Features

• High accuracy and wide range of temperature and humidity measurements:
  • Humidity: 0 to 99.9 %RH with 2% accuracy
  • Temperature: -40 to 80C with an accuracy of 0.5C
• Standby current supply as low as 40uA
• Professional choice for relatively demanding applications: outperforms the basic DHT11D
• Digital output of sensor data and IC interface make it more versatile
• Factory calibrated, easy to use, and backed by detailed wiki and documentation
• Product Number: Seeed 101020019

Specifications

Resources

• Product Wiki
• Eagle Format
• PCB in PDF
• Schematic in PDF

Pinout

Package Contents

• 1x Grove – Temperature & Humidity Sensor Pro
• 1x Grove Cable