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class Servo -- 3-wire hobby servo driver
========================================
Servo controls standard hobby servos with 3-wires (ground, power, signal).
Constructors
------------
.. class:: pyb.Servo(id)
Create a servo object. ``id`` is 1-4.
Methods
-------
.. method:: servo.angle([angle, time=0])
Get or set the angle of the servo.
- ``angle`` is the angle to move to in degrees.
- ``time`` is the number of milliseconds to take to get to the specified angle.
.. method:: servo.calibration([pulse_min, pulse_max, pulse_centre, [pulse_angle_90, pulse_speed_100]])
Get or set the calibration of the servo timing.
.. method:: servo.pulse_width([value])
Get or set the pulse width in milliseconds.
.. method:: servo.speed([speed, time=0])
Get or set the speed of a continuous rotation servo.
- ``speed`` is the speed to move to change to, between -100 and 100.
- ``time`` is the number of milliseconds to take to get to the specified speed.
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