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Vincent · ‎11-24-2020

datasheet 3.3.5 is the formula to calcualte the res_heat_x value which used to generate the desired temperature. This is related to the heat plate operation to achive certain temperature. then gas register is different part to change according to the VOC component. This gas resister will vary becasue of the combination of [duty-cycle & heater temperature] which defines a certain equilibrium between the surface state and the ambient air

Vincent · ‎10-27-2020

If you know clearly about the temperature offset coming from PCB self heating, then you can set this temperature offset as heat source as input when calling the lib to process the data. Then you just need to use temperature value read from sensor and heat source ( 2 input of lib). no need to set amb temperature into bsec lib.

MassaRoddel · ‎10-12-2020

Thank you, that makes sense. If the gas resistance values are also ok then everything is fine. I was worried that we might have broken the sensors during soldering. Our application is not about air quality.

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