BSEC - depreciated virtual sensors?

[JohnRob]

Are some of the virtual sensors depreciated or am I missing something.

I am using BSEC 1.4.7.3 with a MBE680.

I've based my code on the "basic_config_state.ino" example.

When compiling I found the 4 variables aere all initiated but not used.

• uint8_t comp_gas_accuracy = 0;
• uint8_t breath_voc_accuracy
• uint8_t co2_accuracy
• uint8_t static_iaq_accuracy = 0

Have these been depreciated or they used in the compiled code?   I could not find any documentation on them.

I also found this line of code in the same example

checkIaqSensorStatus();

Ihave not been able to find any reference to it in any of the app notes or other files (that I can read).  Is it a useful statement?

Thanks, John

[kgoveas]

Hi JohnRob,

Can you send a link to your reference?

Regards,
kgoveas

[handytech]

BSEC works on a subscription mechanism, and in the basic_config_state.ino example of BSEC v1.4.7.3, here is the list of virtual sensors subscribed to:

bsec_virtual_sensor_t sensorList[7] = {
    BSEC_OUTPUT_RAW_TEMPERATURE,
    BSEC_OUTPUT_RAW_PRESSURE,
    BSEC_OUTPUT_RAW_HUMIDITY,
    BSEC_OUTPUT_RAW_GAS,
    BSEC_OUTPUT_IAQ,
    BSEC_OUTPUT_SENSOR_HEAT_COMPENSATED_TEMPERATURE,
    BSEC_OUTPUT_SENSOR_HEAT_COMPENSATED_HUMIDITY,
};

iaqSensor.updateSubscription(sensorList, 7, BSEC_SAMPLE_RATE_LP);

To enable more virtual sensor outputs like eCO2, bVOC-eq, etc. you would need to add these to the sensorList array element above (and update the size of the array and number of virtual sensors in the 2nd argument of updateSubscription(...)).

[JohnRob]

kgoveas,

The sample file was in the BSEC 1.4.7.3 I downloaded from the Bosch site.

John

[JohnRob]

Thank for the reply but i guess my question wasn't clear.  I understand the subscription process,  however the specific parameters I listed are shown in at least one of the examples, however they are not listed in the documentation (see below)

• BST BME680 IntegrationGuide_AN0084.pdf
• BST-BME680-Integration-Guide-AN008-47.pdf

Hence my question, are they still active measurements?

John