GY-SHT30-D Digital Temperature & Humidity Sensor Module - I2C

Specifications

• Sensor IC: SHT30
• Communication Interface: I2C (Standard and Fast Mode)
• Operating Voltage (VCC): 2.15V to 5.5V DC (Highly compatible with both 3.3V and 5V logic)
• Temperature Range: -40°C to +125°C
• Temperature Accuracy: ±0.2°C (Typical)
• Humidity Range: 0% to 100% RH
• Humidity Accuracy: ±2% RH (Typical)

Applications

• Smart Agriculture & Greenhouses: Monitor micro-climates with high precision.
• HVAC Control Systems: Integrate into custom thermostats for industrial or home use.
• IoT Weather Stations: Perfect for ESP32/ESP8266 weather logging projects.
• Medical & Storage Datalogging: Track environmental conditions in server rooms or medical storage units.

Unlock New Capabilities

• Past Projects: If you've outgrown the basic DHT11 or DHT22 sensors because they are too slow or lock up your code with their custom timing protocols...
• Feature Upgrade: The SHT30-D unlocks true I2C capability. This means non-blocking code, faster sampling rates, and vastly superior accuracy.
• Effort Level: Intermediate. Requires basic I2C knowledge and library installation, but the code is generally cleaner than older 1-wire sensors.

Package Includes:

• 1 x GY-SHT30-D Digital Temperature & Humidity Sensor Module - I2C

Frequently Asked Questions (FAQ)

• What is the GY-SHT30-D?
  It is a highly accurate digital temperature and humidity sensor module based on the SHT30 chip, communicating via the I2C protocol.
• How does the SHT30 compare to the DHT22?
  The SHT30 is significantly faster, more accurate (±2% RH vs ±5% RH), and uses standard I2C communication, making it far superior to the DHT22.
• What is the default I2C address of the GY-SHT30-D?
  The default I2C address is usually 0x44.
• How do I change the I2C address on the SHT30?
  By connecting the ADDR (address) pin to logic HIGH (VCC), the I2C address changes to 0x45, allowing two sensors on the same bus.
• What is the operating voltage of the SHT30 sensor?
  It operates safely between 2.15V and 5.5V, making it versatile for many systems.
• Can I use the SHT30 with a 5V Arduino UNO?
  Yes, the GY-SHT30-D module is designed to work with both 3.3V and 5V microcontrollers.
• Is the SHT30-D module waterproof?
  No, this bare PCB module is not waterproof. Do not expose the sensor IC directly to rain or condensation.
• What library should I use for the SHT30 in Arduino IDE?
  The "Adafruit SHT31 Library" works perfectly for the SHT30 as they share the same command set.
• How accurate is the temperature reading on the SHT30?
  It boasts a typical accuracy of ±0.2°C.
• How accurate is the humidity reading?
  The typical humidity accuracy is ±2% RH.
• What is the response time of the SHT30 sensor?
  It has a very fast response time of roughly 8 seconds (tau 63%) for humidity.
• Why are the header pins unwelded on this module?
  Unwelded pins allow engineers to directly solder wires to the pads for space-constrained projects or custom PCB integration.