BME680 - Gas/Temperature/Humidity/Pressure sensor

Environmental sensor including gas analysis

The BME680 sensor from Bosch is finally available. The BME680 offers all the useful environmental sensing in one small package. This little sensor contains sensing for temperature, humidity, barometric pressure and VOC gas. All over SPI or I2C!

Now, Adafruit did also fits its breakout board with the Stemma QT connector (Adafruit Standard for I2C).

As the BME280 and BMP280, this precision sensor measures humidity with ±3% accuracy, temperature with ±1.0°C accuracy and barometric pressure with ±1 hPa absolute accuracy. Because pressure changes with altitude (and pressure measurements are very good), you can use this pressure measurement as an altimeter with  ±1 meter accuracy!

The BME680 goes a step beyond by including a small MOX sensor. The heated metal oxide changes resistance based on the volatile organic compounds (VOC) in the air. As results, the sensor can be used to detect gasses, alcohols such as Ethanol and Carbon Monoxide and also perform air quality measurements.
Pay attention: it will give you one resistance value, with overall VOC content, but it cannot differentiate gasses or alcohols.

Technical details

• 3.3V & 5V ready
• Size: 16.0mm x 11.0mm x 2.8mm
• Weight: 3.0g
• BME680 Datasheet (pdf)

Content

For each order, you will have the BME680 fully assembled and tested. The breakout is shipped with a section of pinHeader.