Adafruit BME688 Temperature, Humidity, Pressure & Gas Sensor – STEMMA QT (I2C/SPI)

The Adafruit BME688 is a high-performance 4-in-1 environmental sensor based on the Bosch Sensortec BME688 IC. It combines temperature, humidity, barometric pressure, and VOC (Volatile Organic Compounds) gas sensing into a single compact breakout board, making it ideal for weather stations, indoor air quality monitoring, smart home automation, IoT devices, and environmental data logging. The BME688 also supports advanced AI-based gas analysis, allowing developers to build custom odor and gas detection applications using Bosch's machine learning tools.

Designed for ease of use, the board features both I2C and SPI communication interfaces, making it compatible with Arduino, Raspberry Pi, ESP32, STM32, and other popular development platforms. Built-in 3.3V voltage regulation and logic level shifting allow safe operation with both 3.3V and 5V microcontrollers. It also includes STEMMA QT connectors (compatible with SparkFun Qwiic) for quick plug-and-play connections without soldering.

Whether you're creating an IoT weather station, monitoring indoor air quality, measuring altitude, or collecting environmental data, the Adafruit BME688 provides accurate and reliable sensing in a compact, easy-to-integrate module.

Features

• Bosch BME688 environmental sensor

• Measures temperature, humidity, barometric pressure, and VOC gases

• Supports both I2C and SPI communication

• STEMMA QT / Qwiic compatible for solderless connections

• Built-in 3.3V voltage regulator and logic level shifting

• Compatible with 3.3V and 5V microcontrollers

• High accuracy environmental measurements

• Supports Arduino, CircuitPython, Raspberry Pi, ESP32, STM32, and more

Specifications

• Sensor IC: Bosch BME688

• Temperature Range: -40°C to +85°C

• Temperature Accuracy: ±1.0°C

• Humidity Range: 0–100% RH

• Humidity Accuracy: ±3% RH

• Pressure Range: 300–1100 hPa

• Pressure Accuracy: ±1 hPa

• Gas Sensor: MOX sensor for VOC detection

• Communication Interface: I2C / SPI

• Operating Voltage: 3.3V–5V (onboard regulator and level shifting)

• Board Dimensions: 25.5 × 17.6 × 4.6 mm

• Weight: Approximately 1.7 g

Applications

• Weather stations

• Indoor air quality monitoring

• Smart home automation

• IoT environmental monitoring

• Altitude measurement

• HVAC systems

• Data logging

• Robotics and embedded systems

• STEM education and research

Note: The VOC sensor measures the overall concentration of volatile organic compounds and cannot identify specific gases without calibration or machine learning models. For optimal performance, Bosch recommends an initial burn-in period and periodic warm-up before taking measurements.

Manila stock. Order before 16:00 PHT, ships today via J&T or LBC. Provincial: 1–3 working days.

Schools / class POs: we accept Purchase Orders for accredited schools and universities. contact us with your PO details.

Returns: 7-day inspection window for DOA units. Email proof of issue and we ship a replacement.