BME688 - 4-in-1 environmental sensor - AI module - I2C / SPI - Waveshare 24244

The module manufactured by Waveshare, based on the Bosch BME688 multi-functional environmental sensor system, enables the measurement of temperature , humidity , atmospheric pressure and the detection of gases contained in the air . Thanks to the built-in AI system, it is possible to distinguish between: volatile sulfur compounds, organic compounds, carbon dioxide, hydrogen and many other substances. It allows you to measure temperature in the range from -40°C to 85°C with an accuracy of +/- 0.5°C, humidity from 0% to 100% relative humidity with an accuracy of ±3% and pressure from 300 hPa to 1100 hPa with accuracy up to ±0.6 hPa. Communication with the microcontroller takes place via the I2C or SPI interface, and the supply voltages are 3.3 V or 5 V.

BME688 - 4in1 environmental sensor - AI module - I2C / SPI - Waveshare 24244.

• Measured parameters: temperature, atmospheric pressure, air humidity, gas detection
• Built-in AI system that allows you to recognize gas contained in the air
• Measurement range:
  • Temperatures: from -40°C to 85°C with an accuracy of +/- 0.5°C (for temperatures from 0°C to 65°C)
  • Relative humidity: from 0% to 100% with an accuracy of ±3%
  • Pressure: from 300 hPa to 1100 hPa with an accuracy of ±0.6 hPa (at temperature from 0°C to 65°C)
  • VOC content: 0d 0 to 500 IAQ (Indoor Air Quality)
• Communication interface: I2C and SPI
• Supply voltage: from 1.71 V to 3.6 V
• Sensor measurement duration:
  • humidity: 8 s (for a change of 90% RH)
  • gases: 10.8 s

The I2C and SPI interfaces used for communication with the module are provided on the 6-pin JST connector. Additionally, the user has pins at their disposal that allow them to solder their own wires. These included:

• CS - Chip Select SPI interface
• ADDR/MISO - I2C address or SPI data pin
• SCL/SCK - clock of both interfaces
• SDA/MOSI - data pin of the I2C and SPI interfaces
• GND - common ground of the system
• VCC - supply voltage - 3.3 V or 5 V

Elements included in the set.

• Sensor type: environmental
• Built-in chip: BME688
• Measured parameters: temperature, relative humidity, pressure, gas content
• Built-in artificial intelligence system
• Communication interface: I2C and SPI
• I2C interface address: 0x76 (can be changed to 0x77)
• Support for modes "00" and "11" of the SPI interface
• Module connection: 6-pin JST connector and soldering pins
• Built-in logic converter
• Supply voltage: 3.3 V or 5 V
• Two mounting holes
• Dimensions: 27 x 20 mm

• 1x BME688 - 4in1 environmental sensor - AI module - I2C / SPI - Waveshare 24244
• 1x PH2.0 6-pin cable (20 cm)

• Manufacturer's website: Waveshare 24244
• Module user guide
• System diagram
• BME688 technical documentation
• Raspberry Pi configuration
• Sample program code