Fermion: Temperature & Humidity(SHTC3), Pressure(BMP280), Ambient Light(VEML7700) and UV(ML8511) Sensor

SKU: SEN0500

This DFRobot multifunctional environmental sensor integrates SHTC3 (temp&humidity), BMP280 (pressure), VEML7700 (light), and LTR390 (UV, V1: ML8511, V2: LTR390-UV-01) to measure 5 parameters. Professional chips and optimized circuit design ensure accuracy. Onboard MCU converts raw data to standard units (℃/°F, %, Kpa, lx, mw/cm²). It supports UART/I2C, has Gravity/Breakout versions, and includes Arduino/Python libraries. Compact, it’s ideal for home/environmental monitoring projects, simplifying wiring and code.

Overhead shot of Fermion environmental sensor module with SHTC3 and BMP280 sensors.-DFRobot product sku:SEN0500 image.
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  • Tech Specs
  • Specification

    Version 1.0

    Parameter Details
    Working Voltage 3.3VDC
    Working Current 35mA
    Output Signal I2C, UART
    Working Temperature -20~70℃
    Size 30mm × 20.5mm/1.18 × 0.81"
    Atmospheric pressure sensor

    Atmospheric pressure unit relationship: 1000pa = 10hpa = 1kpa

    Parameter Details
    Sensor chip model BMP280
    Atmospheric pressure measurement range 300~1100 hPa
    Relative accuracy of atmospheric pressure ±0.12 hPa
    Absolute atmospheric pressure accuracy ±1 hPa
    Temperature & Humidity Sensor
    Parameter Details
    Sensor chip model SHT-C3
    Relative humidity accuracy ±2%RH
    Relative humidity resolution 0.01%RH
    Relative humidity measurement range 0~100
    Temperature accuracy ±0.2℃
    Temperature resolution 0.01℃
    Temperature measurement range -40~125℃
    Ultraviolet Sensor
    Parameter Details
    Sensor chip model ML8511
    Ultraviolet sensitive wavelength UV-A (320-400nm), UV-B (280-320nm)
    Ultraviolet output unit mW/㎡
    Ambient light sensor
    Parameter Details
    Sensor chip model VEML7700
    Ambient light accuracy 0.0036 lx/ct
    Ambient light range 0~120 klx

    Version 2.0

    Parameter Details
    Operating Voltage 3.3V~5V
    Operating Current 35mA
    Output Signals I2C, UART
    Operating Temperature -20~70℃
    Circuit Board Dimensions 30mm × 20.5mm
    Atmospheric Pressure Sensor Parameters

    Pressure Unit Conversion: 1000Pa = 10hPa = 1kPa

    Parameter Details
    Sensor Chip Model BMP280
    Atmospheric Pressure Measurement Range 3000~1100 hPa
    Relative Pressure Accuracy ±0.12 hPa
    Absolute Pressure Accuracy ±1 hPa
    Temperature and Humidity Sensor Parameters
    Parameter Details
    Sensor Chip Model SHT-C3
    Relative Humidity Accuracy ±2%RH
    Relative Humidity Resolution 0.01%RH
    Relative Humidity Measurement Range 0~100%RH
    Temperature Accuracy ±0.2℃
    Temperature Resolution 0.01℃
    Temperature Measurement Range -40~125℃
    UV Sensor Parameters
    Parameter Details
    Sensor Chip Model LTR390-UV-01
    UV Sensitive Wavelength 280-430nm
    Measurement Data Range 13 Bit, 16 Bit, 17 Bit, 18 Bit, 19 Bit, 20 Bit
    Measurement Rate 25ms, 50ms, 100ms, 200ms, 500ms, 1000ms
    Adjustable Gain Multiples 1, 3, 6, 9, 18
    Ambient Light Sensor Parameters
    Parameter Details
    Sensor Chip Model VEML7700
    Ambient Light Accuracy 0.0036 lx/ct
    Ambient Light Measurement Range 0~120 klx

    Pinout

    Version 1.0

    Board Overview

    Num Label Description
    1 3V3 Power +
    2 GND Power -
    3 RXD UART receiving
    4 TXD UART transmitting
    3 SCL I2C Clock Line
    4 SDA I2C Data Line
    3 RST Reset Pin
    4 NC Empty

    Version 2.0

    Label Name Function
    1 VCC Positive power supply (3.3V~5V)
    2 GND Ground
    3 R (RXD) UART receive terminal
    4 T (TXD) UART transmit terminal
    5 C (SCL) I²C clock line (SCL)
    6 D (SDA) I²C data line (SDA)
    7 NC, NC, NC, NC No connection (reserved pins)

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