HI, I wonder if anyone can help me. I am having trouble with my Bosch BME280, none of the compensated values seem even remotely correct.
Is there anyone out there who could post some real register data so that I could make a comparison. Ideally, Calibration register data, ADC data and conversion results.
Most urgent is temperature but they are all pretty skewey.
If I had some example data from a real part I could at least pipe that through the conversion routines and see if the error is there or at the point of measurement/ADC read.
The conversions are not particularly complex. They are in the datasheet. You can put them all on a spreadsheet and see what inputs give the outputs you are getting.
I disagree, since I don't trust my read data I have to populate a spreadsheet conversion with upwards of six unknown/untrusted variables - including calibration registers and ADC values. I cannot model a system in a spreadsheet with so many unknowns in any useful way.
You didn't show us your code. There are many things you can do wrong in the software. One example from the datasheet: "To read out data after a conversion, it is strongly recommended to use a burst read and not address every register individually."