GY-SHT30-D Digital Temperature and Humidity Sensor

GY-SHT30-D Digital Temperature and Humidity Sensor is a highly reliable I2C-based sensor module that offers precise temperature and humidity readings. Based on the Sensirion SHT30 chip, this compact board integrates signal processing, calibration, and digital output in a small form factor, making it ideal for IoT and environmental monitoring applications.

Key Features:

• High Accuracy: ±2% RH and ±0.3°C accuracy.
• Digital I2C Output: Seamless interface with most microcontrollers.
• Low Power Consumption: Suitable for battery-powered devices.
• Onboard Pull-up Resistors: For I2C communication lines.
• Factory Calibrated: No need for external calibration.

Technical Specifications:

• Sensor Chip: Sensirion SHT30
• Operating Voltage: 3.3V to 5V DC
• Humidity Range: 0–100% RH
• Temperature Range: -40°C to +125°C
• Humidity Accuracy: ±2% RH
• Temperature Accuracy: ±0.3°C
• Interface: I2C (Address 0x44 or 0x45)
• Response Time: <8 seconds (humidity)

Mechanical Specifications:

• PCB Material: FR4 Glass Epoxy
• Connector: Standard 4-pin header
• Color: Blue or Purple PCB (varies by batch)
• Weight: Approx. 2g

Dimensions:

• Length: 16mm
• Width: 12mm
• Height: 3mm (excluding header pins)

Mounting Options:

• Header Pin Mounting: Through-hole via standard 2.54mm pitch header
• Panel Mounting: With adhesive or enclosure slot

Schematic Diagram, Connection, Wiring and Pinout:

• Pin 1 (VCC): Power supply (3.3V to 5V)
• Pin 2 (GND): Ground
• Pin 3 (SCL): I2C Clock
• Pin 4 (SDA): I2C Data
• Connection: Connect to I2C pins of microcontroller with 10K pull-up resistors

Datasheet/User Manual:

• Sensirion SHT30 Datasheet (PDF)
• GY-SHT30-D Module Schematic and Wiring Guide

Applications:

• IoT and Smart Homes: Environment monitoring, automation
• Weather Stations: Accurate temperature and humidity logging
• HVAC Systems: Smart heating and cooling control
• Greenhouses: Environmental regulation for plants
• Wearables: Body temperature/humidity tracking devices

Equivalent:

• GY-SHT31-D: Higher accuracy version with same form factor
• DHT22 (AM2302): Lower-cost digital sensor alternative (lower accuracy)
• BME280: Includes pressure sensing with I2C/SPI interface

Package Includes:

• 1 x GY-SHT30-D Digital Temperature and Humidity Sensor Module