The Grove servomotor can be used to control rotary position within an 180-degree range.
Hardware
Even though your servo may have a label that says "analog servo", it must be plugged into a digital port on your Grove shield:
Note that, due to the way the servomotor is wired, the digital pin number actually may not match the port number! Inspect the cable closely to be sure of which pin the servomotor’s wiring is connected to. For example, a servomotor plugged into port D7 may actually be connected to pin D8 — always inspect the physical connection to be sure.
Software
Functions that interact with the servomotor are prefixed with servo.
To control the servomotor, pass an angle (between 0 and 180 degrees)
to the servo_set_angle function:
def servo_set_angle(pin, angle):
"""Move servo motor to given angle (in degrees)
Parameters:
pin (int): Digital connection port
angle (int): Final servo position (range: [0, 180])
"""To check the current position of the servo motor, call the
servo_get_angle function:
def servo_set_angle(pin):
"""Check position of servo motor
Parameters:
pin (int): Digital connection port
Returns: Servo motor position (0–180).
"""