DFRobot Fermion Multifunctional Environmental Sensor (Breakout)


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SKU: 1209989
  1. Working Voltage: 3.3V DC.
  2. Working Current: 35mA.
  3. Output Signal: I2C, UART.
  4. Working Temperature: -20~70℃.
  5. Size: 30mm x 20.5mm/1.18 x 0.81″


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Brand: DF Robot
Category: Environmental Sensors

This multifunctional environmental sensor comprises SHTC3 temperature & humidity sensor, BMP280 barometric pressure sensor, VEML7700 ambient light sensor, and ML8511 UV sensor into one and offers 5 kinds of environmental parameters. Professional sensor chips are selected for each kind of parameter measurement. The reasonable layout and heat conduction of the main chips are carefully considered in the circuit design, which effectively guarantees the accuracy of the data. The product has an MCU processing chip onboard that converts the sensor raw data into values with the standard units so you can directly use them. For instance, ℃ and °F for temperature, % for humidity, Kpa for barometric pressure, lx for light illuminance, and mw/m² for UV light. The environmental sensor supports two communication methods(UART and I2C) and provides two versions: Gravity and Fermion(breakout), also Complete Arduino and Python libraries are provided. Exquisite and small, you can use it to make indoor and outdoor environmental monitoring systems, or for your environmental monitoring topics. This DFRobot environmental sensor can greatly simplify the wiring and codes of your project.


  1. Home indoor and outdoor environment detection system.
  2. Environmental monitoring work.

 Useful Link:



  1. Mini size can be directly soldered onto your PCB.
  2. Switchable I2C and UART as two output modes.
  3. The highly integrated module can test a variety of data at the same time (temperature, humidity, barometric pressure, altitude, ultraviolet intensity, ambient light intensity).
  4. Reasonable layout and high precision.

Note : Product may vary in terms of version printed on board .


            Barometric Pressure Sensor:

  1. Barometric Pressure Unit Relationship: 1000pa = 10hpa = 1kpa.
  2. Sensor Chip Model: BMP280.
  3. Barometric Pressure Measurement Range: 3000~1100 hPa.
  4. Relative Accuracy Of barometric Pressure: ±0.12 hPa.
  5. Absolute barometric Pressure Accuracy: ±1 hPa.

          Temperature & Humidity Sensor:

  1. Sensor Chip Model: SHT-C3.
  2. Relative Humidity Accuracy: ±2%RH.
  3. Relative Humidity Resolution: 0.01%RH.
  4. Relative Humidity Measurement Range: 0~100.
  5. Temperature Accuracy: ±0.2℃.
  6. Temperature Resolution: 0.01℃.
  7. Temperature Measurement Range: -40~125℃

         UV Sensor:

  1. Sensor Chip Model: ML8511.
  2. Ultraviolet Sensitive Wavelength UV-A (320-400nm), UV-B (280-320nm).
  3. Ultraviolet Output Unit: mW/㎡Ambient Light Sensor:
  4. Sensor Chip Model: VEML7700.
  5. Ambient Light Accuracy: 0.0036 lx/ct.
  6. Ambient Light Range: 0~120 klx.

Packages Includes:

1 x DFRobot Fermion Multifunctional Environmental Sensor (Breakout).

SKU: 1209989 Category:
Working Voltage


Working Current(mA)


Output Signal


Operating Temperature (°C)

-20 to 70

Size (mm):

30mm x 20.5mm

Shipping Weight 0.16 kg
Shipping Dimensions 6 × 5 × 2 cm
6 Months Warranty

This item is covered with a supplier warranty of 6 months from the time of delivery against manufacturing defects only. This is a quality product from the original manufacturer. Only manufacturing defects are covered under this warranty. Reimbursement or replacement will be done against manufacturing defects.

What voids the warranty:

If the product is subject to misuse, tampering, static discharge, accident, water or fire damage, use of chemicals & soldered or altered in any way.

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Country Of Origin: China