BME680 Frequently Asked Questions (FAQs)


What is the recommended operating temperature range for the BME680?
The recommended operating temperature range for the BME680 is -40°C to 85°C. However, the sensor can tolerate temperatures up to 105°C for short periods of time.


How do I calibrate the BME680?
The BME680 does not require calibration. It comes pre-calibrated from the factory. However, you may need to perform a temperature compensation procedure to ensure accurate readings.


What is the purpose of the gas sensor heater?
The gas sensor heater is used to heat the metal oxide sensing layer to a high temperature, which enables the detection of gases such as VOCs (volatile organic compounds). The heater is typically operated at a temperature of around 320°C.


How do I interpret the gas sensor resistance values?
The gas sensor resistance values can be used to detect changes in the gas composition. A lower resistance value indicates a higher concentration of gases such as VOCs. You can use the resistance values to calculate an air quality index or to detect specific gases.


What is the difference between the 'sleep' and 'forced' modes?
The 'sleep' mode is a low-power mode where the sensor is in a dormant state, consuming minimal power. The 'forced' mode is an active mode where the sensor is continuously measuring the environment. The 'forced' mode is used for taking measurements, while the 'sleep' mode is used to conserve power when not taking measurements.