Sht30 Temperature and Humidity Sensor Module

Sht30 Temperature Heat and Humidity Sensor Module

-40C / 125C 0RH / 100RH Digital Air Conditioner Thermostat Medical Industrial Smart Home Thermometer IIC

     The SHT30 Temperature and Humidity Sensor Module is a digital temperature and humidity measurement board with I2C (IIC) communication, carrying the Sensirion SHT30 sensor. It measures temperature in a wide range such as -40°C to +125°C with typical ±0.3°C accuracy and relative humidity in the %0 - %100 RH range with typical ±%2 RH accuracy. The sensor is factory calibrated and gives the measured value digitally over I2C; no calibration or analog reading is needed on the user side.

     On one edge of the 10.4mm x 13.1mm purple board the VIN, GND, SCL and SDA connection points are lined up with 2.54mm pitch; there is 1 mounting hole on the board. The module works with 3.3V. The default I2C address is 0x44; the SHT30 sensor also supports address 0x45, which is selected with the ADDR pin of the sensor. The 2 extra connection points next to the sensor are unlabelled on the board.

     Thanks to its wide temperature range and small board it is suitable for monitoring ambient temperature and humidity in applications such as air conditioners, thermostats, incubators, greenhouses and warehouses. The humidity value responds to a change in the environment in about 8s.

Key features:

     Wide temperature range: It measures between -40°C and +125°C; temperature is read also in harsh environments such as cold storage and the hot inside of devices.

     Calibrated digital output: The sensor is factory calibrated; the temperature and humidity values are read digitally over I2C, no analog reading or calibration is needed.

     Accurate measurement: Typical ±0.3°C accuracy in temperature and typical ±%2 RH in humidity; humidity response time 8s.

     Four-wire connection: Connected with VIN, GND, SCL and SDA; the default I2C address is 0x44, the SHT30 also supports address 0x45.

     Small purple board: Thanks to the 10.4mm x 13.1mm board and the mounting hole it fits easily into narrow boxes and the inside of devices.

Features:

• Product type:    I2C digital temperature and humidity sensor module
• Sensor: Sensirion SHT30 (SHT3X is printed on the board)
• Operating voltage: DC 3.3V (the product will be damaged if used with 5V)
• Temperature measurement range: -40°C to +125°C
• Temperature accuracy: typical ±0.3°C
• Humidity measurement range: %0 - %100 RH
• Humidity accuracy: typical ±%2 RH (±%3 RH in some seller data)
• Humidity response time: 8s
• Communication interface: I2C (IIC)
• I2C address: 0x44 (default); 0x45 is selected with the ADDR pin of the sensor
• Calibration: factory calibrated digital output
• Compatible boards: Arduino, ESP32, ESP8266, Raspberry Pi, STM32 and all 3.3V control boards with an I2C interface
• Pins: VIN (3.3V), GND (ground), SCL (I2C clock), SDA (I2C data)
• Connection: 4-pin connection socket, 2.54mm pin pitch; 2 extra connection points on the board
• Mounting: 1 mounting hole
• Colour: purple
• Dimensions: 10.4mm x 13.1mm
• Weight: about 1gr

Usage information:

• Connect the VIN pin to the 3.3V supply, the GND pin to GND, the SCL pin to the I2C clock (SCL) pin of the control board and the SDA pin to the I2C data (SDA) pin. Power the module with 3.3V. On the board in the picture the SCL pin is printed "SCL/T" and the SDA pin "SAA/RH"; this pin is SDA.
• The sensor is read at address 0x44 by default. For a second SHT30 on the same bus, address 0x45 is selected by connecting the ADDR pin of the sensor to VIN; check on the board which extra connection point the ADDR pin goes to.
• After soldering the pin header, mount the board away from heat sources (regulator, heater, lamp, motor) and direct sunlight, in a place with air flow; otherwise it measures the temperature of the source, not of the environment.

Areas of use:

•  Air conditioning and climate automation
•  Thermostat and room temperature control
•  Incubator humidity and temperature control
•  Greenhouse and plant growing environment monitoring
•  Terrarium and reptile care environment
•  Ventilation fan and dehumidifier control
•  Warehouse, cold room and archive temperature and moisture monitoring
•  Weather station and datalogger projects
•  Smart home room temperature and humidity display (hygrometer, thermometer)
•  Humidity monitoring inside electrical panels and device enclosures
   

Precautions:

•  Power the module with 3.3V; the product will be damaged if used with 5V. If it is used with a 5V logic control board, the supply must be taken from 3.3V and a level shifter must be used for the I2C lines.
•  The sensor is an open board and is not waterproof. Do not place it in water, rain or where water drips on it; outdoors, use it inside a box protected from rain with air flow.
•  Do not cover the measuring opening on top of the sensor and do not apply lacquer, glue or protective spray on it; the humidity measurement will be spoiled.
•  Do not connect the VIN and GND pins in reverse; reverse supply may permanently damage the board.
•  In environments with continuous condensation, chemical vapour (solvent, ammonia, chlorine) or heavy dust the humidity reading may drift; protect the sensor from these environments.

Package contents:

•  1 Piece SHT30 Temperature and Humidity Sensor Module
•  1 Piece 6-pin male header (not soldered)
•  Note: The connection cable and the control board are not included in the package.