ROHM Magnetometer Sensor BM1422AGMV

RE: ROHM Magnetometer Sensor BM1422AGMV

DAB — Fri, 23 Nov 2018 20:55:24 GMT

Nice post Jan.

Have you done any sensitivity testing to see how accurate the device is to tell direction?

DAB

RE: ROHM Magnetometer Sensor BM1422AGMV

kulky64 — Fri, 23 Nov 2018 18:42:16 GMT

Have you tried to calibrate out hard and soft iron interference? Because from your data it seems there is some present. If you are in Belgium you should be getting total magnetic field of around 49 uT with inclination of 66 deg. You can check magnetic field data for your exact GPS location at:

https://www.ngdc.noaa.gov/geomag-web/#igrfwmm

From your data I'm getting total length of magnetic field vector ( =sqrt(x^2+y^2+z^2) ) from 48.3 uT to 87.1 uT.

RE: ROHM Magnetometer Sensor BM1422AGMV

genebren — Fri, 23 Nov 2018 17:24:15 GMT

Nice write-up. I look forward to the full roadtest. I have been looking for a nice little magnetometer to try some autonomous control of my robot, so I will have to check this part out.

Thanks!

Gene