On Wed, Apr 27, 2016 at 3:08 PM, Gregor Boirie <gregor.boirie@xxxxxxxxxx> wrote: > Many thanks for taking time to test this. ~95 kPa seems rather a small value > to me. > > For reference, it seems 950 hPa at sea level would be found under a... > hurricane ! > (may vary with location) > > Does it match with your local weather forecast / report ? Hmmmm no :) Checking with local weather site it should be ~1006 hPa. Do you think the sensor is just badly calibrated? I tested now with another sensor on the Snowball board. It gives (after scaling): 101.4 28.8 101.9 28.8 101.9 29.5 This sensor seems more accurate wrt pressure. However here instead the temperature seems bananas, this is a Swedish office, we don't have ~30degrees here... And it's not the board is just turned on so I don't think it's that warm. One sensor gives believeable pressure, the other gives believeable temperature... The data sheet says this sensor is calibrated for two pressure+temperature combinations at manufacturing. I wonder if there are "secret registers" in the device that can update the calibration... Anyways, the measures are not totally off scale so I guess they are in the right ballpark. And these patches makes it work better for sure. Yours, Linus Walleij -- To unsubscribe from this list: send the line "unsubscribe linux-iio" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
