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1 files changed, 5 insertions, 4 deletions
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@@ -13,13 +13,14 @@ Compile the project using
wp85: ``make wp85``
## Setting Variables
-To change the sensitivity of the application you must edit the `motionMonitor/motionMonitor.c` file.
+To change the sensitivity of impact detection you must edit the `motionMonitor/motionMonitor.c` file.
The Accelerometer measures acceleration in 3 dimensions, X, Y, and Z. These dimensions of acceleration are recorded and the magnitude of their resulting vector is calculated using ``double impactMagnitude = sqrt(x * x + y * y + z * z);``
+
+![Magnitude](https://www.intmath.com/vectors/img/235-3D-vector.png)
+
+
`#define DEFAULT_THRESHOLD_MS2 17` determines the magnitude of the resulting vector that will trigger the application to detect a sudden impact.
If adjusting the value of `DEFAUTL_THRESHOLD_MS2` keep in mind that gravity implies a motionless magnitude of -9.8m/s^2
As visualized with the red vector here.
-![Magnitude](https://www.intmath.com/vectors/img/235-3D-vector.png)
-
-