3/18/2019
Grove - 3-Axis Digitial Compass v2.0 - Seeed Wiki
http://wiki.seeedstudio.com/Grove-3-Axis_Digitial_Compass_v2.0/
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Step 4. Upload the code. If you do not know how to upload the code, please check
[http://wiki.seeedstudio.com/Upload_Code/]
Step 5. Open the serial monitor to receive the sensor's data
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}
void
loop
()
{
bmm150_mag_data value;
bmm.read_mag_data();
value.x = bmm.raw_mag_data.raw_datax;
value.y = bmm.raw_mag_data.raw_datay;
value.z = bmm.raw_mag_data.raw_dataz;
float
xyHeading = atan2(value.x, value.y);
float
zxHeading = atan2(value.z, value.x);
float
heading = xyHeading;
if
(heading <
0
)
h=
2
*PI;
if
(heading >
2
*PI)
heading -=
2
*PI;
float
headingDegrees = heading *
180
/M_PI;
float
xyHeadingDegrees = xyHeading *
180
/ M_PI;
float
zxHeadingDegrees = zxHeading *
180
/ M_PI;
Serial.print(
"Heading: "
);
Serial.println(headingDegrees);
delay(
100
);
}
