Adafruit BME688 - Temperature, Humidity, Pressure and Gas Sensor

The BME688 from Bosch is an all-in-one environmental sensor that measures temperature, humidity, barometric pressure, and VOC gases. It communicates via SPI or I2C, making it versatile and easy to integrate. As a successor to the BME680, the BME688 adds a programmable gas-sensor heater for more advanced odor analysis, while maintaining the same hardware. This compact and affordable sensor is ideal for a variety of environmental monitoring applications.

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Features:

1. Measures temperature, humidity, pressure, and VOC gases.
2. High precision: Humidity (±3%), pressure (±1 hPa), temperature (±1.0°C).
3. Altimeter functionality with ±1 meter accuracy.
4. Detects VOCs like ethanol and carbon monoxide.
5. Programmable heater for advanced odor analysis.
6. Supports I2C/SPI, compatible with 3.3V and 5V systems.
7. Stemma QT connector for solder-free setup.

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Specifications:

1. Humidity Accuracy: ±3%
2. Temperature Accuracy: ±1.0°C
3. Barometric Pressure Accuracy: ±1 hPa
4. Altitude Accuracy: ±1 meter or better
5. VOC Sensor: Metal oxide (MOX) for detecting gases (alcohols, ethanol, carbon monoxide)
6. Communication Interface: I2C and SPI
7. Operating Voltage: 3.3V to 5V (on breakout board with regulator)
8. Heater Programming: Programmable for controlled odor analysis
9. Calibration Required: For precise measurements, especially VOC detection
10. Connector Compatibility: Stemma QT (Qwiic-compatible)
11. Dimensions: Standard 0.100” (2.54mm) pitch headers for breadboard use

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Package Includes:

1 x Adafruit BME688 - Temperature, Humidity, Pressure and Gas Sensor