System operation
UM0704
8/18
Doc ID 15731 Rev 1
For instance, let's suppose the board is in an equilibrium position and the X-axis of the
board is fixed, if the Y- axis of the board is tilted in an upward direction (the Y-axis of the
board is moved up) then, at an inclination of, say, 18 degrees with respect to ground plane,
D13 glows. If the inclination is increased to approximately 36 degrees, D14 and D15 glow
(see
). If the inclination is further increased, D16, D17 are turned on, and then D18,
D19 and when the board is finally perpendicular to the ground plane all the inner circle LEDs
are turned on. The LEDs start turning off in a similar manner when the board detects a
reverse tilt to again attain the equilibrium position, ([D20], [D18, D19], [D16, D17] and so
on).
Similarly, let us suppose that from the equilibrium position, keeping the X-axis of the board
fixed, if the Y-axis of the board is tilted downwards (the Y-axis of the board is moved down),
the inner circle starts glowing, beginning from D20. If the board is inclined further in a
downward direction, D19 and D18 turn on and so on (see
). When the board is at
90 degrees to the ground plane, all the inner circle LEDs are turned on. The LEDs start
turning off in a similar manner when the board detects a reverse movement to again attain
the equilibrium position, ([D13], [D14, D15], [D16, D17] and so on).
Figure 7.
Tilt on the Y-axis - image of the
board’s X- and Y-axis
Figure 8.
Tilt on the Y-axis - image of the
explanation of tilt in the Y-axis
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Figure 9.
Tilt in the Y-axis in an upward
direction
Figure 10.
Tilt in the Y-axis in a downward
direction
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