GY-213V-HTU21D TEMPERATURE AND HUMIDITY SENSOR MODULE

The HTU21D is a highly precise digital temperature and humidity sensor module. Designed for low-power operation, it provides reliable temperature and relative humidity readings via an I²C interface, making it ideal for environmental monitoring, HVAC systems, and IoT applications.

Key Features of HTU21D Temperature and Humidity Sensor Module:

• • High Accuracy: ±2% RH (humidity) and ±0.3°C (temperature) accuracy.
  • I²C Interface: Simple two-wire communication for seamless integration with microcontrollers.
  • Low Power Consumption: Efficient operation, ideal for battery-powered applications.
  • Wide Operating Range: Measures temperature from -40°C to +125°C and humidity from 0% to 100% RH.
  • Compact Design: Small module size allows easy incorporation into various systems.

Technical Specifications of HTU21D Temperature and Humidity Sensor Module:

• • Temperature Measurement Range: -40°C to +125°C
  • Humidity Measurement Range: 0% to 100% RH
  • Temperature Accuracy: ±0.3°C
  • Humidity Accuracy: ±2% RH
  • Supply Voltage: 1.5V to 3.6V
  • Communication Protocol: I²C
  • Resolution: 14-bit (humidity) and 12-bit (temperature)
  • Operating Current: 0.15mA (average)
  • Module Dimensions: 15mm x 15mm (approx.)

Schematic Diagram, Connection, Wiring, and Pinout of HTU21D Temperature and Humidity Sensor Module:

• • Schematic Diagram: The HTU21D connects to a microcontroller via the I²C bus, with SDA and SCL pins pulled up to VCC through resistors (typically 4.7kΩ).
  • Connection:
    • VCC: Connect to 3.3V power supply.
    • GND: Connect to the ground.
    • SDA: Connect to the I²C data line of the microcontroller.
    • SCL: Connect to the I²C clock line of the microcontroller.
  • Pinout:
    • Pin 1 (VCC): Power supply input (3.3V)
    • Pin 2 (GND): Ground
    • Pin 3 (SDA): I²C data line
    • Pin 4 (SCL): I²C clock line

Applications of HTU21D Temperature and Humidity Sensor Module:

• • Weather Monitoring: Used in weather stations to measure ambient temperature and humidity.
  • HVAC Systems: Helps optimize climate control systems by monitoring environmental conditions.
  • IoT Devices: Suitable for IoT-enabled environmental monitoring applications.
  • Industrial Automation: Monitors temperature and humidity in industrial processes.
  • Home Automation: Used in smart home devices for environmental sensing.

Equivalent Models of HTU21D Temperature and Humidity Sensor Module:

• • DHT22 (AM2302): An alternative sensor with similar accuracy but a slower response time.
  • SHT31: A higher-end sensor with additional features like CRC checking.

DataSheet:

• • Download Datasheet

Keywords for HTU21D Temperature and Humidity Sensor Module:

• • HTU21D Sensor
  • Temperature and Humidity Module
  • Environmental Sensor
  • Digital I²C Sensor
  • HTU21D Module

Package Includes:

• • 1 x HTU21D Temperature and Humidity Sensor Module