Gravity BME688 Breakout Humidity, Pressure, Temperature and Air Quality Sensor

The Gravity BME688 from DFRobot measures temperature, humidity, air pressure and volatile organic compounds (VOC) with a Bosch sensor. Compared with the BME680, the temperature measurement is more accurate; a heating layer under the chip keeps the gas measurement stable and allows gas profiles for AI evaluation with Bosch BME AI-Studio. It connects via the Gravity connector using I2C; SPI is possible via the solder pads.

Smaller variant without Gravity connector: Fermion BME688 AI Environmental Sensor (VOC, Temperature, Humidity, Pressure)

Note: The connection cable can be converted to male pins with a Dupont cable M-M, so that it also fits an Arduino UNO.

Recommended Accessories:

• Dupont Cables M-M 10cm 20 Pieces

Features:

• Temperature -40 to 85 °C, ±0.5 °C (0 to 65 °C)
• Humidity 0 to 100 % RH, ±3 % RH (20 to 80 % RH, 25 °C)
• Air pressure 300 to 1100 hPa, ±0.6 hPa (0 to 65 °C)
• Gas sensor with heating layer for VOC and air quality
• IAQ index 0 to 500 with the DFRobot library according to DFRobot only on FireBeetle ESP8266; custom AI gas profiles with Bosch BME AI-Studio and BSEC2
• Software and hardware compatible with the BME680 (DFRobot)
• I2C via Gravity 4-pin (address 0x77 in the example), SPI via solder pads only with 3.3 V (DFRobot)

Application Examples:

• Monitoring indoor air and ventilation
• Weather station with pressure, temperature and humidity
• Portable environmental loggers
• Training custom gas profiles with Bosch BME AI-Studio

Documentation:

• Wiki DFRobot SEN0617
• Arduino example without IAQ (DFRobot Wiki)
• Arduino example with IAQ (FireBeetle ESP8266) (DFRobot Wiki)
• Library DFRobot_BME68x (GitHub)
• Bosch BSEC2 library for AI gas analysis (GitHub)
• Schematic (PDF)
• Datasheet (PDF)

Technical Data:

• Manufacturer: DFRobot
• Manufacturer SKU: SEN0617
• Sensor: Bosch BME688
• Operating voltage: 3.3 to 5 V DC
• Current consumption: 5 mA, 25 mA with VOC measurement
• Temperature: -40 to 85 °C, ±0.5 °C (0 to 65 °C)
• Humidity: 0 to 100 % RH, ±3 % RH
• Air pressure: 300 to 1100 hPa, ±0.6 hPa
• IAQ range: 0 to 500 (higher = worse air)
• Interface: I2C (Gravity), SPI via solder pads (3.3 V only)
• Connector: Gravity PH2.0 4-pin, pins +, −, C (SCL), D (SDA)
• Dimensions: 30 × 22 mm, height 6 mm
• Weight: 14 g

Scope of Delivery:

• 1× Gravity BME688 environmental sensor
• 1× Gravity sensor cable 4-pin
• 1× pin header 10-pin, 2.54 mm