Explicitly use pin factories for servo/motor.

MotorControl/MotorServer.py

@@ -1,7 +1,7 @@
 #!/usr/bin/env python3
 
 from threading import Timer, Thread
-from gpiozero import Servo
+from gpiozero import Servo, Device
 from concurrent import futures
 import time
 
@@ -72,7 +72,7 @@ class MotorServicer(motorService_pb2_grpc.CarControlServicer):
         return grpc.ssl_server_credentials([[pvtKeyBytes, pvtCertBytes]])
 
 motor = Motor()
-servo = Servo(servo_pin)
+servo = Servo(servo_pin, Device.pin_factory)
 servicer = MotorServicer(motor, servo)
 
 service_thread = Thread(target=servicer.start_server)

MotorControl/gpiozero/motor_session.py

@@ -17,7 +17,7 @@ class Motor:
         if self._motor_pin is None:
             print("Motor pin number is not set.")
             return
-        self._servo = Servo(self._motor_pin)
+        self._servo = Servo(self._motor_pin, pin_factory=Device.pin_factory)
 
     def set_throttle(self, throttle):
         try: