Hello everybody, I want to use a BMP280 to install it in a small aircraft as an altimeter. This sensor is supposed to give the absolute and relative pressure I think. All the applications found on the web do not talk about the compensation that must be done when the temperature is not standard, i.e. 15°C at sea level, so pressure of 1013.25HPa. Indeed, it seems to me that at each altitude, it is necessary to check that we have the right temperature, this one decreasing by 2° per 1000 feet. If this is not the case, you have to recalculate the altitude with the temperature correction. I didn't find that algorithm. Does anyone know where to find it... or how to find it? Many thanks in advance, Bgeof
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