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Fermion: SHT31 Digital Temperature & Humidity Sensor

SKU: SEN0331

The article introduces the Fermion SHT31 digital temperature and humidity sensor, detailing its specifications such as operating voltage, current, humidity and temperature accuracy, detection range, and communication method. It offers a comprehensive overview of the sensor's pinout, including data and clock lines, alarm interrupt, and reset functions. Designed for high precision, the sensor operates across a wide detection range, making it suitable for various applications requiring accurate environmental monitoring.

Front of SHT31 temperature & humidity sensor module with labeled pins and screws-DFRobot product sku:SEN0331 image.

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    • 1. Example Code for Arduino-Temperature & Humidity Alarm

    Temperature and humidity over-threshold alarm. Experimental phenomenon: The user can customize the temperature and humidity thresholds, and the ALERT pin generates an alarm signal once the values exceed the user-defined threshold. NOTE: The ALERT pin on the sensor should be connected to the interrupt pin on the main panel when using this function.
    2. Example Code for Arduino-Single Measurement Mode

    The blog post provides an Arduino example code using the SHT31 sensor in single measurement mode, detailing hardware setup, library installation, and code execution to read ambient temperature and humidity with low power consumption.
    3. Example Code for Arduino-Period Measurement Mode

    This article provides example code for Arduino's period measurement mode, detailing how to read ambient temperature and relative humidity in cycle read mode, and distinguishing between single and cycle measurement modes.
    Reference

    The article offers a detailed exploration of the SHT3x sensor library and its integration with Arduino, focusing on the IIC communication protocol, API functions for temperature and humidity measurements, and practical implementation tips.

    Specification

    Parameter Value
    Operating Voltage 2.15~5.5V
    Operating Current <1.5mA
    Humidity Accuracy ±2%RH
    Humidity Detection Range 0%RH~100%RH
    Temperature Accuracy ±0.2℃
    Temperature Detection Range -40℃~125℃
    Communication IIC
    Outline Dimension 19x16mm/0.75x0.63”
    Mounting Hole Size 2mm/0.08”
    Mounting Hole Pitch 15mm/0.59”

    Pinout

    SEN0331 Top/Bottom View

    Name Description
    SDA Data line
    SCL Clock Line
    GND Negative
    VCC Positive
    INT Alarm Interrupt
    RST Reset
  • CE CE
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