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    BME 680 Intended Gas Measurement Approach

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    Occasional Visitor

    BME 680 Intended Gas Measurement Approach

    Hello,

    We are prototyping with BME 680 for IAQ measurement.

    Using BSEC library (IoT Loop) it typically takes 10-15 minutes for IAQ accuracy to reach 3 (from a cold start). I am trying to understand the intended use of the sensor here. Do I need to keep reading the sensor constantly at all times to maintain accuracy ? Would this shorten lifetime of the sensor by any means ?

    Otherwise, what would be the best approach to take one reading every 5 mins ? Or every 15 mins ? Should I stop reading from the sensor and wait for it to re-adjust every time or keep it running ?

    If it needs to be kept running, is there a way to do so other than reading it continuously ?

    Many thanks,

    Cagri

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    Re: BME 680 Intended Gas Measurement Approach

    You can keep reading the sensor until the IAQ accuracy reaches 3. It won’t shorten the lifetime of the sensor. Otherwise, you need to calibrate by using a marker, blowing air into the sensor or placing the sensor in a clean environment. In BSEC, you can use LP or ULP mode instead.

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