GY-213V-HDC1080 High Accuracy Digital Humidity Sensor

GY-213V-HDC1080 High Accuracy Digital Humidity Sensor is a low-power, high-accuracy digital sensor module that provides integrated temperature and humidity sensing solutions for various environmental monitoring tasks. This module leverages the Texas Instruments HDC1080 chip, offering superior linearity and minimal drift over time, which ensures reliable, long-term performance. The HDC1080 incorporates a new sensing element, protecting it from dirt and dust. Consequently, this design enhances the sensor’s robustness in harsh environments. Furthermore, the module uses the standard I²C interface, simplifying integration with microcontrollers like Arduino, Raspberry Pi, and ESP32. Therefore, engineers confidently choose the GY-213V for smart home devices, weather stations, and sensitive data logging applications that demand precise environmental data.

Key Features:

• High Accuracy: The HDC1080 chip delivers high-precision measurements, offering humidity accuracy of ±2% and temperature accuracy of ±0.2°C (typical).
• Integrated Temperature Sensing: The module simultaneously measures both relative humidity and temperature, providing a comprehensive environmental data set.
• Ultra-Low Power Consumption: Features very low power draw, especially in sleep mode, making it ideal for battery-powered and portable applications.
• Wide Supply Voltage Range: The module operates efficiently across a broad voltage range, typically from 2.7V to 5.5V, ensuring compatibility with most microcontrollers.
• Digital Interface: Uses the fast and simple I²C (Two-Wire) communication protocol for efficient data transfer and minimal pin usage.

Technical Specifications:

• Sensor Chip: Texas Instruments HDC1080
• Relative Humidity Range: 0% to 100% RH
• Humidity Accuracy: ±2% RH (Typical, 10% to 60% RH)
• Temperature Range: −40°C to +125°C (Sensor operating range)
• Temperature Accuracy: ±0.2°C (Typical)
• Supply Voltage (V_CC): 2.7 V to 5.5 V DC
• Communication Interface: I²C (Address 0x40)
• Average Current Consumption: ≈ 1.3 μA (at 1 reading/sec)

Mechanical Specifications:

• Module Name: GY-213V
• PCB Material: FR4 Fiberglass
• Package Type: Small, compact breakout board (often blue or purple PCB)
• Mounting: Requires external mounting solution (no built-in mounting holes on the HDC1080 IC itself).
• Sensor Element Protection: New sensing element design offers superior resistance to dust, dirt, and condensation.

Dimensions:

• Module Length: ≈ 13 mm
• Module Width: ≈ 10 mm
• Module Height: ≈ 2 mm (Excluding header pins)
• Pin Spacing: 2.54 mm (Standard header pin pitch)
• Weight: < 1 g (Extremely lightweight)

Pinout and Wiring:

• VCC: Connect to the positive power supply (2.7V to 5.5V DC).
• GND: Connect to the common ground (0V) of the system.
• SCL: Connect to the I²C Clock line (SCL) of the microcontroller.
• SDA: Connect to the I²C Data line (SDA) of the microcontroller.
• Wiring Note: This module includes on-board pull-up resistors for the I²C lines; consequently, external pull-ups are usually unnecessary in most standard setups.

Datasheet Reference:

• Download Texas Instruments HDC1080 Datasheet

Commonly Used in:

• Weather Stations: Providing accurate local temperature and humidity readings.
• HVAC Systems: Monitoring air quality and controlling humidifiers or dehumidifiers for optimal climate.
• Smart Home Devices: Integration into thermostats, security systems, and environmental monitors.

Applications:

• Data Logging: Recording long-term environmental conditions in warehouses, archives, or laboratories.
• Cold Chain Monitoring: Tracking conditions for perishable goods during storage and transport.
• Medical Devices: Monitoring air quality in incubators and respirators where stable conditions are critical.
• Internet of Things (IoT): Serving as the primary environmental data source for network-connected sensors.

Equivalent Models:

• BME280 / BMP280: However, these Bosch sensors also provide humidity and temperature but often include barometric pressure as well.
• SHT30 / SHT31: Sensirion sensors offer similar high accuracy and low power usage, serving as direct, high-quality alternatives.
• DHT22 / AM2302: A lower-cost, slower alternative; therefore, the HDC1080 is often chosen when superior accuracy and an I²C interface are mandatory.

Package Includes:

• 1 x GY-213V-HDC1080 High Accuracy Digital Humidity and Temperature Sensor Module