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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.