Bosch BME690 Breakout Board – Smart Air Quality Measurement for Modern IoT Projects

The Bosch BME690 Breakout Board is a state-of-the-art 4-in-1 air quality sensor for precise environmental data acquisition in smart home, IoT, and industrial applications. In addition to temperature, humidity, and atmospheric pressure, the sensor also measures volatile organic compounds (VOCs) and other gases, enabling reliable assessment of indoor air quality.

The BME690 is based on the latest sensor generation from Bosch Sensortec and expands the functions of the well-known BME688 with increased robustness in high humidity and condensation. This makes the module ideal for demanding applications such as air quality monitoring, HVAC systems, kitchen exhaust, indoor climate monitoring, or intelligent building technology.

Thanks to integrated AI support and compatibility with the Bosch BME AI-Studio software, individual gas profiles can be trained and specific odor or air quality patterns can be recognized.

Precise Air Quality Measurement with AI Support

The integrated Bosch BME690 sensor detects:

Volatile Organic Compounds (VOC)
Volatile Sulfur Compounds (VSC)
Changes in indoor air quality
Temperature
Relative humidity
Atmospheric pressure

In addition, using the Bosch BSEC software and AI-Studio, functions such as:

IAQ values (Indoor Air Quality)
CO₂ equivalents
bVOC values
individual gas profiles

can be calculated and analyzed.

The sensor is ideally suited for:

Smart home applications
Air quality measurement
HVAC and climate control
Wearables
IoT development
Food freshness projects
Breath analysis
Environmental monitoring
DIY electronics projects

Optimized for Raspberry Pi, ESP32 & Arduino

The BME690 Breakout Board supports both I2C and SPI and can be easily connected to popular development platforms:

Raspberry Pi
ESP32
Arduino
STM32
MicroPython systems
other microcontrollers

The compact design allows for easy integration into existing projects and prototypes.

Advantages of the Bosch BME690 over the BME688

The BME690 is the successor to the popular BME688 and offers several crucial improvements:

higher robustness in high condensation
lower power consumption
faster response to humidity changes
improved long-term stability
pin-compatible with the BME688
ideal for battery-powered devices

This makes the sensor particularly suitable for modern smart home and edge AI applications.

Technical Data

Sensor: Bosch BME690
Functions: Gas, temperature, humidity, and atmospheric pressure sensor
Interfaces: I2C and SPI
Supply voltage: 1.71 V to 3.6 V
I/O voltage: 1.2 V to 3.6 V
Temperature range: -40 °C to +85 °C
Atmospheric pressure range: 300 hPa to 1100 hPa
Humidity measurement range: 0 to 100 % RH
Temperature accuracy: ±0.5 °C
Humidity accuracy: ±3 % RH
Atmospheric pressure accuracy: ±0.5 hPa
Sensor form factor: 3.0 × 3.0 × 0.93 mm
Supported communication: I2C up to 3.4 MHz, SPI up to 10 MHz

Ideal for these Applications

The BME690 Breakout Board is perfect for:

Air quality measurement devices
Smart home sensor technology
Room climate monitoring
Weather stations
Home Assistant integrations
Edge AI projects
Industrial IoT solutions
Energy-efficient sensor systems
Mobile and battery-powered devices

Why BuyZero?

At BuyZero, you receive high-quality sensor technology and developer hardware for professional and private projects. Our Bosch BME690 Breakout Board has been specially selected for makers, developers, and IoT enthusiasts who want to use reliable air quality data and modern AI functions in their projects.

Scope of Delivery

1x BME690 Breakout Board