BME688 VOC Gas, Barometer, Humidity and Temperature Sensor

DESCRIPTION

The BME688 is Bosch Sensortec's AI-enabled 4-in-1 environmental sensor, combining gas/VOC, barometric pressure, humidity, and temperature sensing on a single compact breakout board. It brings lab-grade multi-parameter sensing to Arduino, ESP32, and Raspberry Pi projects, ideal for indoor air quality monitoring and IoT environmental nodes across Singapore's maker and Industry 4.0 communities.

Its onboard AI-ready gas scanning engine detects volatile organic compounds (VOCs), enabling applications from air quality alerts to environmental monitoring that go well beyond a simple temperature logger.

FEATURES

• 4-in-1 sensing: gas/VOC, barometric pressure, humidity, and temperature in one package
• AI-enabled gas scanning engine for customisable VOC and air quality detection
• Supports both I2C and SPI communication (selectable via SDO/CS pins)
• Wide temperature range of -40°C to +85°C
• Humidity accuracy of ±3% RH
• Barometric pressure accuracy of ±0.6 hPa
• Compact breakout form factor with standard 6-pin header (VCC, GND, SCL, SDA, SDO, CS)
• Low power consumption, suitable for battery-powered IoT nodes

APPLICATIONS

• Indoor air quality (IAQ) monitoring stations
• Smart home and HVAC environmental sensing
• Wearable and portable air quality devices
• Industry 4.0 environmental monitoring nodes
• Weather stations and altitude estimation via barometric pressure
• Food freshness and spoilage detection

TECHNICAL DETAILS

• Sensor IC: Bosch BME688
• Measurement Parameters: Gas (VOC), Barometric Pressure, Humidity, Temperature
• Operating Voltage: 3.3V–5V
• Communication Interface: I2C / SPI
• I2C Address: 0x76 or 0x77
• Temperature Range: -40°C to +85°C (±0.5°C accuracy)
• Humidity Range: 0–100% RH (±3% accuracy)
• Pressure Range: 300–1100 hPa (±0.6 hPa accuracy)
• Operating Current: ~5mA (up to 25mA during VOC measurement)

SHIPPING LIST

• 1x BME688 VOC Gas, Barometer, Humidity and Temperature Sensor
• 1x Male Pin Headers