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Accelerometer axes #398
Comments
Note that acc chip has changed pcb side between cyton and ganglion. ( hence x and z axis changed sign, y remains) |
Yeah thats what I discovered. |
@andrewjaykeller Can I go ahead and fix this in the Accelerometer widget using Cyton as a reference? |
So X and Z are multipled by -1? |
Z can be inverted for Ganglion. X and Y may need to be swapped? |
Considering Cyton as reference: |
…nstead of GUI" This reverts commit ba92c84.
Solved in 4.1.0 |
Problem
Accelerometer report x, y, z axes. Rotating the Ganglion revealed that the sign of axes are not right hand cartesian coordinates ( Turning +x into +y axis should point in +z direction (right hand screw)
Expected
Right hand coordinate repersentation
Hence z should change sign or x exchanged with y
Operating System and Version
Windows 7 professional 64bit
GUI Version
4.0.2 ( probably in all versions)
Type of OpenBCI Board
Ganglion
Are you using a WiFi Shield?
No
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