Environmental & Air Quality Sensor BME688 Breakout

The BME688 Environmental Sensor combines gas and air quality sensing with temperature, humidity and barometric pressure measurements, using I2C and dual Qwiic connectors for simple solder-free integration.

This is Soldered Electronics most advanced multi-purpose environmental sensor yet, built around the cutting-edge Bosch BME688. It combines precise environmental monitoring with gas analysis capabilities, measuring organic compounds (VOCs), volatile sulfur compounds (VSCs), carbon monoxide, and hydrogen in the parts-per-billion (ppb) range alongside temperature, humidity, and barometric pressure.

Our Arduino and MicroPython libraries focus on providing reliable environmental data and basic gas detection, but you can supercharge your project by using the Bosch BME-AI Studio software for advanced AI features. Our breakout communicates exclusively via the I2C interface (up to 3.4MHz), making integration straightforward with any microcontroller platform.

Designed for both industrial applications and makers, this breakout board includes dual Qwiic connectors for solderless, plug-and-play integration. Whether you are building an advanced air quality monitoring system, a smart HVAC controller, or conducting environmental research, the BME688 provides the precision and intelligence you need for comprehensive environmental sensing.

Features

• Bosch BME688 environmental sensor with gas analysis capabilities
• Measures VOCs, volatile sulphur compounds (VSCs), carbon monoxide, and hydrogen in ppb range
• Temperature, humidity, and barometric pressure monitoring
• I2C interface support up to 3.4 MHz
• Arduino and MicroPython libraries included
• Advanced AI features available via Bosch BME-AI Studio software
• Dual Qwiic connectors for solderless integration
• Suitable for industrial applications and maker projects
• Compatible with any microcontroller platform

Specifications

• Multi-Gas Detection: VOCs, VSCs, CO, H₂ in ppb range
• AI Gas Classification: Compatible with Bosch BME AI-Studio software
• Air Quality Index (AQI): Real-time air quality assessment
• CO₂-equivalent & bVOC-equivalent: Output in ppm for easy interpretation
• Temperature: -40°C to +85°C with ±1.0°C accuracy
• Humidity: 0-100% RH with ±3% accuracy
• Pressure: 300-1100 hPa with ±1 hPa accuracy
• Altitude Calculation: Derived from pressure measurements
• I2C Interface: Up to 3.4 MHz communication speed
• Dual Qwiic Connectors: Solderless, plug-and-play connectivity
• 3.3V supply voltage: Compatible with modern microcontroller platforms
• Ultra-Low Power: 0.15 µA sleep mode, 2.1 µA humidity/temperature mode
• Arduino & MicroPython libraries for easy integration

Resources

• Full product documentation
• Pinout drawing
• Hardware details
• Arduino library documentation
• Getting started with Arduino
• Arduino library
• Micropython module

Package Contents

• 1x Environmental & Air Quality Sensor BME688 Breakout
• 1x Header strip