DIYables DHT22 Temperature and Humidity Sensor Module for Arduino, ESP32, ESP8266, Raspberry Pi
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Quick Overview
The DIYables DHT22 is a more accurate temperature and humidity sensor module compared to the DHT11. It provides higher precision readings and a wider measurement range, making it suitable for applications requiring better environmental data quality.
The module includes a built-in pull-up resistor for simple wiring without additional components. It works with Arduino, ESP32, ESP8266, Raspberry Pi, and other 3.3V-5V microcontrollers for weather stations, climate control systems, and precision environmental monitoring.
Key Features
- Higher Accuracy — More precise than DHT11 for demanding applications
- Built-In Resistor — No external components needed, simplifies wiring
- Digital Output — Provides temperature and humidity data via single-wire protocol
- Wide Voltage Range — Operating voltage 3.3V to 5V
- Easy Connection — Simple 3-pin interface for quick setup
- Presoldered and Not Soldered Options — Provided in presoldered and not soldered versions for selection
- Tutorial Support — Comprehensive tutorials for Arduino, ESP32, ESP8266, Raspberry Pi, and MicroPython
SPECIFICATION
| Specification | Value |
|---|---|
| Product Type | Temperature and Humidity Sensor Module |
| Model | DHT22 (AM2302) |
| Operating Voltage | 3.3V - 5V |
| Output Type | Digital (single-wire protocol) |
| Temperature Range | -40°C to 80°C |
| Temperature Accuracy | ±0.5°C |
| Humidity Range | 0% to 100% RH |
| Humidity Accuracy | ±2% RH |
| Sampling Rate | 0.5 Hz (once per 2 seconds) |
| Built-in Resistor | Yes (pull-up resistor) |
Tutorials
- Arduino - DHT22 Temperature and Humidity Sensor Module tutorial
- Arduino Uno R4 - DHT22 Temperature and Humidity Sensor Module tutorial
- Arduino Nano - DHT22 Temperature and Humidity Sensor Module tutorial
- Arduino Nano ESP32 - DHT22 Temperature and Humidity Sensor Module tutorial
- ESP32 - DHT22 Temperature and Humidity Sensor Module tutorial
- ESP32 MicroPython - DHT22 Temperature and Humidity Sensor Module tutorial
- ESP8266 - DHT22 Temperature and Humidity Sensor Module tutorial
- Raspberry Pi - DHT22 Temperature and Humidity Sensor Module tutorial
- Raspberry Pi Pico - DHT22 Temperature and Humidity Sensor Module tutorial
COMPATIBLE HARDWARE
- Arduino boards (UNO, Mega, Nano, etc.)
- ESP32 development boards
- ESP8266 (NodeMCU, Wemos D1, etc.)
- Raspberry Pi (all models)
- Raspberry Pi Pico
- Any microcontroller with digital input (3.3V-5V)
