Experience the precision of cutting-edge environmental monitoring with the BME688 Breakout Module - designed for developers, researchers, and engineers who demand comprehensive air quality data. Powered by Bosch Sensortec’s latest innovation, this 4-in-1 sensor offers accurate readings of temperature, humidity, barometric pressure, and air quality, all packed into a compact, intelligent module. Built upon the trusted foundation of the BME680, the BME688 enhances functionality with its breakthrough gas scanning feature, making it the world’s first AI-enabled gas sensor capable of detecting multiple gases including VOCs, VSCs, CO, and hydrogen at ppb levels.

Ideal for indoor air quality applications, smart homes, environmental monitoring systems, and research projects, the BME688 offers unparalleled accuracy, flexibility, and integration support. With both I2C and SPI communication interfaces, this breakout board ensures seamless compatibility with a wide range of microcontrollers and development platforms. The AI functionality enables customised gas scanning configurations, optimising performance based on specific requirements such as sensitivity, selectivity, sampling rate, and energy efficiency.

Key Features

4-in-1 Environmental Sensing: Accurately measures temperature, humidity, barometric pressure, and air quality, including detection of VOCs and other gases.
AI-Enabled Gas Scanning: Customisable gas scanning with machine learning algorithms for detecting volatile organic compounds (VOCs), volatile sulfur compounds (VSCs), carbon monoxide, and hydrogen.
Advanced Sensor Performance: Delivers high accuracy, low drift, and fast response times across all sensing parameters.
Multiple Interface Options: Supports both I2C and SPI digital interfaces for easy integration into various development environments and hardware systems.
Compact and Versatile Design: Perfect for wearable devices, portable air quality monitors, IoT projects, and environmental research where size and precision matter.
Customisable Configuration: Flexible settings allow developers to tailor data rate, power consumption, gas detection sensitivity, and selectivity based on specific use-case requirements.
Bosch Sensortec Reliability: Backed by the trusted quality and innovation of Bosch, ensuring long-term stability and performance.

Resources

Evelta BME688 4-in-1 Air Quality Sensor Breakout Dimensions

Evelta BME688 4-in-1 Air Quality Sensor Breakout Pinouts

We offer 14 days replacement warranty in case of manufacturing defects. For more details, please visit our cancellation and returns page.

Operating Voltage:: 3V - 5V
Operation Range (full accuracy):: Pressure: 300...1100 hPa Humidity 0…100% Temperature: -40…85°C
Interface:: I2C and SPI
Gas Sensor:: F1 score for H2S scanning - 0.92 Standard scan speed - 10.8 s / scan Electric charge for standard scan - 0.18 mAh (5 scans ~ 1 min) Response time (T 33-63%) - < 1 s (for new sensors)
Humidity Sensor:: Response time (T 0-63%) - 8 s Accuracy tolerance - +- 3 % relative humidity Hysteresis - < = 1.5 % relative humidity
Pressure Sensor:: RMS Noise - 0.12 Pa (equiv. to 1.7 cm) Sensitivity Error - +- 0.25 % (equiv. to 1 m at 400 m height change) Temperature coefficient offset - +- 1.3 Pa/K (equiv. to +-10.9 cm at 1C temperature change)
Size:: 31x19mm