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init RH value to 50% for STC3x #12

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Aug 16, 2024
Merged

init RH value to 50% for STC3x #12

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14 changes: 14 additions & 0 deletions src/SensorWrappers/Stc3x.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -92,6 +92,20 @@ uint16_t Stc3x::initializationStep() {
return error;
}

// Set relative humidity
/**
* See
* https://sensirion.com/media/documents/7B1D0EA7/61652CD0/Sensirion_Thermal_Conductivity_Datasheet_STC31_D1_1.pdf
* Section 3.3.3
*
* Sensor would assume a relative humidity of 0% if we would not set this explicitly, which could
* lead to negative gas concentration values.
*/
error = _driver.setRelativeHumidity(50);
if (error) {
return error;
}

return HighLevelError::NoError;
}

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