![](/media/cache/profiles/Timo_01_DSC_4754_533x533.jpg.50x50_q85.jpg)
The sensor is the PmodCMPS2 compass sensor with the 3D magnetometer chip MMC34160PJ Data sheet https://download.mikroe.com/documents/datasheets/MMC3416xPJ_Rev_C_2013_10_30.pdf The values for Helsinki in December 2021 ( Model used WMM-2020 https://www.ngdc.noaa.gov/geomag/calculators/magcalc.shtml#igrfwmm ) North component = 146 milli Gaus East component = 25 milli Gaus Vertical component = 502 milli Gaus Total field = 524 milli Gaus Connect: L432KC -- PmodCMPS2 PA_9 -- SCL PA_10 -- SDA GND -- GND 3V3 -- VCC Set the jumpers SDA and SCL on the PmodCMPS2.
Diff: README.md
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diff -r 000000000000 -r 2666acd6dfb3 README.md --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/README.md Mon Dec 06 20:46:15 2021 +0000 @@ -0,0 +1,32 @@ +The sensor is the PmodCMPS2 compass sensor with +the 3D magnetometer chip MMC34160PJ +Data sheet +https://download.mikroe.com/documents/datasheets/MMC3416xPJ_Rev_C_2013_10_30.pdf + +On the earth surface the world magnetic field points towards the north and +in level with the horizon at the equador. Further north the field starts +pointing downwards. In southern Europe it points downwards with inclination +60 degrees. In Scandinavia it points downwards with inclination 75 degrees. +At the north pole it points straight down with inclination 90 degrees. + +The declination is the difference between geaographic and magnetic north pole. +The declination depends where and when you are observing the field. + +The values for Helsinki in December 2021 ( Model used WMM-2020 +https://www.ngdc.noaa.gov/geomag/calculators/magcalc.shtml#igrfwmm ) +Declination 9 degr 45 min +Inclination 73 degr 35 min +North component 14572 nT = 146 milli Gaus +East component 2505 nT = 25 milli Gaus +Vertical component 50222 nT = 502 milli Gaus +Total field 52353 nT = 524 milli Gaus + +Connect: +L432KC -- PmodCMPS2 +PA_9 -- SCL +PA_10 -- SDA +GND -- GND +3V3 -- VCC +Set the jumpers SDA and SCL on the PmodCMPS2. + +Timo Karppinen Apache-2.0 \ No newline at end of file