14
TESTING THE SERVOS
4
SERVOS
The continuous rotation servos used in the :MOVE mini are controlled in the
same manner as normal remote control servos. These servos are controlled
by a repeating pulse, whose width commands the servo to turn to a position.
For a normal servo, position is measured from the output shaft and used to
determine what angle the servo should stop at.
Because of component tolerances, we may need to set the centre point on
the :MOVE mini servos to ensure it will stop when commanded. This is done
with a trimmer, which is explained later on.
A continuous rotation servo is slightly different. Instead of the signal telling
the servo how far to move, it tells the servo how fast to move.
STOP
0 DEGREES
90 DEGREES
180 DEGREES
NORMAL SERVO
CONTINUOS ROTATION SERVO
SPEED:
DEGREES:
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