SparkFun Environmental Sensor Breakout – BME688 (Qwiic)

SparkFun Environmental Sensor Breakout – BME688 (Qwiic) combines a gas scanning sensor with temperature, humidity, and barometric pressure sensing. It is a complete environmental sensor in a single package. The gas sensor on the BME688 can detect a wide variety of volatile organic compounds (VOCs), volatile sulfur compounds (VSCs), and other gases such as carbon monoxide and hydrogen in the part per billion (ppb) range. Combine that with precise temperature, humidity, and barometric pressure, and the BME688 can work as a completely standalone environmental sensor all in a 1in. x 1in. breakout.

Features

Bosch BME688 AI Gas Sensor
Uses I²C interface (Qwiic-enabled)
- I²C Addresses: 0x76 (Default) or 0x77
- 2x Qwiic Connectors
Operating voltage range
- 1.71V – 3.6V
- Typically 3.3V if using the Qwiic cable
Relative humidity
- Operating range: 0% to 100%
- Absolute Accuracy: ±3%RH
- Resolution: ±0.008%RH
Temperature
- Operating range: -40°C to +85 °C
- Absolute Accuracy: ±1.0°C
- Resolution: 0.01°C

Pressure
- Operating range: 300hPa – 1100hPa
- Absolute accuracy: ±60Pa (0°C to 65°C)
- Resolution: 0.18PA, highest oversampling
Gas
- F1 score for H₂S scanning: 0.92
- Standard scan speed: 10.8 sec/scan
- Sensor-to-sensor deviation: ± 15% ± 15
Typical current consumption (varies based on mode and active sensor)
- 2.1µA to 18mA
- 0.15µA (sleep mode)
- 3.9mA in standard gas scan mode

SparkFun Environmental Sensor Breakout – BME688 (Qwiic)

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