Seeed Studio XIAO nRF52840 Sense with built in IMU; what is the X axis and Y axis orientation of the board?
Thanks,
Jeffrey
The sensor data sheet explains how in the IMU chip, the component XYZ axes are oriented with respect to IC package markings.
However, a program that estimates 3D orientation from the sensor is free to reinterpret the chip axes in any convenient way.
jremington
Thank you for the advice!
This is the sort of diagram you need to be looking at, taken from the 6DOF LSM6DS3TR-C data sheet.
Match the dot on the IC with the various edges of the Xiao PCB.
If you can write a program to continuously read out the three accelerometer axes, while orienting the PCB in different directions, any axis pointing straight up will report a large positive value (equal to about 1 g).
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