Adafruit BME680 – Temperature, Humidity, Pressure and Gas Sensor – STEMMA QT

Description Adafruit BME680 - Temperature, Humidity, Pressure and Gas Sensor - STEMMA QT

The Adafruit BME680 sensor offers a complete environmental analysis in a compact form. This small but powerful sensor measures temperature, humidity, barometric pressure and VOC gases. Users benefit from SPI or I2C connectivity at an attractive price. This sensor from Bosch, similar to the BME280 and BMP280, provides accurate measurements. It measures the humidity with an accuracy of ±3%. The barometric pressure with ±1 hPa and the temperature with ±1.0°C. Thanks to the accurate pressure measurements, the BME680 can also be used as an altimeter, with an accuracy of ±1 meter.

A unique feature of the BME680 is the MOX sensor. This sensor responds to changes in resistance caused by VOCs in the air. For example, it detects gases and alcohols, such as ethanol and carbon monoxide. The sensor provides a total VOC value, but does not distinguish between different gases or alcohols. For precise measurements, calibration against known sources is necessary. The sensor does provide a good picture of trends and comparisons in air quality.

For ease of use, the sensor is mounted on a PCB with a 3.3V regulator and level shift. This makes it easy to use with 3.3V or 5V microcontrollers. All pins of the BME680 are available on standard 2.54mm pitch headers, ideal for breadboards. The sensor now also has Stemma QT connectors (compatible with SparkFun Qwiic) for solder-free connections. A QT cable is available separately.

Features Adafruit BME680 - Temperature, Humidity, Pressure and Gas Sensor - STEMMA QT

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

• Accuracy: humidity ±3%, pressure ±1 hPa, temperature ±1.0°C.

• Can be used as an altimeter (accuracy ±1 meter).

• Includes a MOX sensor for detecting VOCs.

• Connectable via SPI or I2C.

• Compatible with 3.3V or 5V microcontrollers.

• Easy integration with breadboards thanks to standard headers.

• Includes Stemma QT connectors for soldering-free use.

• Extensive manual with supporting code and schematics.

• Suitable for both beginners and experienced users.

• Ideal for environmental analyzes and air quality projects.