Elecrow Crowtail - DHT20 Temperature and Humidity Sensor Module
Elecrow Crowtail - DHT20 Temperature and Humidity Sensor Module - Image 2
Elecrow Crowtail - DHT20 Temperature and Humidity Sensor Module - Image 3
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Elecrow Crowtail - DHT20 Temperature and Humidity Sensor Module - Image 5
SKU: SENS-3404
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Elecrow Crowtail - DHT20 Temperature and Humidity Sensor Module

â‚č309.00 (Inclusive of all taxes)
Out of Stock

The Elecrow Crowtail DHT20 is a high-precision, fully calibrated digital temperature and humidity sensor module featuring an I2C interface for seamless integration with Arduino, Raspberry Pi, ESP32, and other 3.3V/5V microcontroller platforms.

Features

  • High-precision digital temperature and humidity sensing with I2C interface.
  • Fully calibrated sensor element for immediate use without user calibration.
  • Low power consumption design suitable for battery-powered applications.
  • Wide operating voltage range of 2.2V to 5.5V (compatible with 3.3V and 5V logic).
  • Crowtail-compatible form factor for plug-and-play use with Elecrow base shields.

Out of stock

Description

The DHT20 sensor module integrates a next-generation capacitive humidity sensing element and a matched high-precision temperature sensor. It communicates via a fully digital I2C interface, providing fast response times and robust signal integrity, making it far more reliable than previous generation sensors like the DHT11/DHT22.

Engineered for stability and low power consumption, the module is ideal for environmental monitoring systems, HVAC control, and data logging applications. Its improved performance parameters include enhanced measurement accuracy across a wider operating range and superior long-term stability.

Key Features

  • High-performance capacitive humidity sensing element with integrated temperature sensor.
  • Fully calibrated digital output via I2C interface (address 0x38).
  • Optimized for low power consumption, extending battery life in portable devices.
  • Excellent measurement accuracy and long-term stability for reliable data acquisition.
  • Wide supply voltage range from 2.2V to 5.5V for flexible system integration.
  • Fast response time and strong anti-interference capability for noisy environments.
  • Crowtail form factor enables quick prototyping without soldering.
  • High-value build offering superior performance-to-cost ratio.

Applications

  • Indoor environmental monitoring and smart home climate control systems.
  • HVAC (Heating, Ventilation, and Air Conditioning) system performance monitoring.
  • Data logging for weather stations and agricultural greenhouse management.
  • Battery-powered portable environmental data loggers and IoT sensor nodes.
  • Laboratory equipment and industrial process monitoring requiring stable humidity readings.

Technical Specifications

ParameterSpecification
Sensor ModelDHT20
InterfaceI2C (Address 0x38)
Operating Voltage2.2V - 5.5V (Compatible with 3.3V & 5V)
Humidity Range0% - 100% RH
Humidity Accuracy±3% RH (typical)
Temperature Range-40°C to +80°C
Temperature Accuracy±0.5°C (typical)
Response Time8s (humidity), <30s (temperature)
Average Current Consumption~1.1mA (at 3.3V, 1 measurement per second)
Dimensions (Module)Approx. 22mm x 32mm

Frequently Asked Questions

What is the I2C address of the DHT20 sensor module?

The DHT20 sensor has a fixed I2C address of 0x38 (hexadecimal). This address is used for all communication with the microcontroller. Ensure your I2C bus does not have another device conflicting with this address.

What is the operating voltage range for the DHT20 module?

The DHT20 sensor IC itself operates from 2.2V to 5.5V. The Elecrow Crowtail module is designed to be compatible with both 3.3V and 5V logic levels, making it safe to use directly with Arduino (5V) and Raspberry Pi/ESP32 (3.3V) systems without level shifting.

Does the DHT20 require calibration before use?

No, the DHT20 is a fully calibrated digital sensor. The factory calibration data is stored internally, so the module provides accurate temperature and humidity readings immediately upon power-up without any user calibration required.

How does the DHT20 compare to the older DHT11 or DHT22 sensors?

The DHT20 represents a significant upgrade. It uses a digital I2C interface instead of a proprietary single-wire protocol, offering faster, more reliable communication. It also features improved accuracy, lower power consumption, better long-term stability, and a wider operating voltage range compared to the DHT11 and DHT22.

Package Includes

  • 1 x Elecrow Crowtail DHT20 Temperature and Humidity Sensor Module

Additional Information

Weight 0.012 kg
Dimensions 10 × 8 × 2 cm

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