Product description: Fermion - AI environmental sensor - BME688 - VOC / temperature / humidity / pressure - I2C / SPI - DFRobot SEN0629
The DFRobot Fermion BME688 environmental sensor combines temperature , humidity , atmospheric pressure and volatile organic compound (VOC) detection in a single system . It supports both I2C and SPI communication, offering great integration flexibility. The BME688 also has a built-in heating layer that stabilizes VOC measurements and allows for advanced gas analysis using AI algorithms in the BME AI-Studio software. This makes it an ideal solution for intelligent air quality monitoring, environmental research or industrial leak detection.
Fermion - AI environmental sensor - BME688 - VOC / temperature / humidity / pressure - I2C / SPI - DFRobot SEN0629.
The sensor is able to measure environmental parameters such as temperature, humidity, pressure and VOC.
Main features of the sensor
- MEMS multi-sensor system : integrates temperature, humidity, pressure and VOC measurement
- I2C and SPI support : flexible communication with various microcontrollers
- AI-ready : support for BME AI-Studio and BSEC2 gas analysis libraries
- High measurement precision : ± 0.5°C (temperature), ± 3% (RH), ± 0.6 hPa (pressure)
- Built-in heating layer : stabilizes VOC readings and provides precise temperature control
- Compact dimensions : only 30 x 22 mm
Terminals and connectors
The Fermion BME688 module uses four main pins for I2C communication:
- VCC : 3.3V to 5V power supply (SPI 3.3V only)
- GND : ground
- SCL : I2C clock line
- SDA : I2C data line
The remaining pins can be used for more advanced configurations or via the SPI interface. With a standard 2.54 mm pinout, the sensor can be easily connected to a breadboard or a ready-made module.
All pins are labeled for easier sensor connection.
Connection and Compatibility
The BME688 can work with many popular hardware platforms : Arduino Uno , Mega , Leonardo , ESP8266 , ESP32 and Raspberry Pi . It supports I2C (recommended for simplicity) and SPI (only 3.3V) interfaces. The DFRobot_BME68x and BSEC2-Arduino libraries provide full functionality - including support for air quality (IAQ) measurement. The sensor works best with the FireBeetle ESP8266 - it is the only board that fully supports IAQ measurement.
Practical applications
- Indoor air quality monitoring (VOC, IAQ)
- Intelligent air conditioning and ventilation systems
- Weather Stations and IoT Projects
- Detection of industrial gases and leaks
- Environmental research using AI
Sensor Technical Specifications
- Supply voltage: 3.3 V to 5 V (SPI only 3.3 V)
- Operating current: 5 mA (up to 25 mA with active VOC measurement)
- Communication interface: I2C / SPI
- Temperature measurement range: -40°C to 85°C
- Temperature measurement accuracy: ±0.5°C (from 0°C to 65°C)
- Humidity measurement range: 0% RH to 100% RH
- Humidity measurement accuracy: ±3% RH (from 20% RH to 80% RH, 25°C)
- Pressure measurement range: 300 hPa to 1100 hPa
- Pressure measurement accuracy: ± 0.6 hPa (from 0°C to 65°C)
- IAQ (Indoor Air Quality) Range: 0 to 500 (the higher the value, the worse the air quality)
- Dimensions: 30 x 22 mm
Kit Contents
- 1x AI Fermion BME688 Environmental Sensor
- 1x Goldpin connector 1x10 raster 2.54 mm
Items included in the set.
