MicroPython Forum (Archive)

I do not know which driver you use, but in my driver I use: p = 44330 * (1.0 - math.pow(self.pressure / self._baseline, 0.1903)) where _baseline is the actual pressure at sea level, which will change all the time. You get that pressure typically from the weather reports, which tell you this "normal...

Thank you for your input. I will look into it. And yes I do update QNH (local baro pressure at sea level) every two hours.
I will update the formula and see what happens

So it turns out that BMP180.py driver calculates altitude wrongly as it is showing me that I live on a mountain (870+ meters) while im almost sitting at the beach p = -7990.0*math.log(self.pressure/self.baseline) i have changed it to p = (44331.5 - 4946.62 *self.pressure**(0.190263) using the part o...