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DFRobot Gravity: Multifunctional Environmental Sensor Module compatible with Raspberry pi, Arduino and ESP32 Development Board

DFRobot Gravity: Multifunctional Environmental Sensor Module compatible with Raspberry pi, Arduino and ESP32 Development Board

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This multifunctional environmental sensor comprises SHTC3 temperature & humidity sensor, BMP280 barometric pressure sensor, VEML7700 ambient light sensor, and LTR390 UV sensor (V1.0 : ML8511, V2.0 : LTR390-UV-01) 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 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 in 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/cm² for UV light.

The environmental sensor supports two communication methods (UART and I2C) and provides two versions: Gravity and fermion (breakout). Complete Arduino and Python libraries are also 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.

Description: V2.0 changes the UV sensor model compared to V1.0, the UV sensor in V1.0 is ML8511, and the UV sensor in V2.0 is LTR390-UV-01.


Working Voltage: 3.3~5V DC

Working Current: about 4mA

Output Signal: I2C, UART

Working Temperature: -20~70℃

Product Size: 32mm×32mm / 1.26×1.26 inch

Mounting Hole Size: M3 (diameter 3mm / 0.12 inch), the distance between the centers of the mounting holes is 25mm / 0.98 inch

Barometric Pressure Sensor

Sensor Chip Model: BMP280

Barometric Pressure Measurement Range: 3000~1100 hPa

Relative Accuracy Of barometric Pressure: ±0.12 hPa

Absolute barometric Pressure Accuracy: ±1 hPa

Temperature & Humidity Sensor

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℃

UV Sensor

Sensor Chip Model: LTR390-UV-01

Ultraviolet Sensitive Wavelength: 280-430nm

Range of Measured Data: 13 Bit、16 Bit 、17 Bit、18 Bit、19 Bit、20 Bit

Measurement Rate: 25ms、50ms、100ms、200ms、500ms、1000ms

Adjustable Gain Multiple: 1、3、6、9、18

Ambient Light Sensor

Sensor Chip Model: VEML7700

Ambient Light Accuracy: 0.0036 lx/ct

Ambient Light Range: 0~120 klx