Add python client for the car controller.

MotorControl/PythonRemoteController.py

@@ -0,0 +1,50 @@
+print("Connecting to pi")
+
+import grpc
+from concurrent import futures
+from .MotorServer import MotorServicer
+from . import motorService_pb2_grpc
+import random
+from threading import Timer
+
+throttle = 0
+timer = None
+
+class ThrottleIterator:
+    '''
+    Class to get the current throttle for the car.
+    Will return a random throttle between 
+    '''
+    def __iter__(self):
+       return self
+
+    def __next__(self):
+        if throttle > 1 or throttle < -1:
+            raise StopIteration
+        return throttle
+
+
+def serve():
+  server = grpc.server(futures.ThreadPoolExecutor(max_workers=10))
+  motorService_pb2_grpc.add_CarControlServicer_to_server(
+      MotorServicer(), server)
+  server.add_insecure_port('[::]:50051')
+  server.start()
+
+def resetThrottle():
+    global throttle
+    throttle = random.random() * 2 - 1
+    global timer
+    if timer is not None:
+        timer.cancel()
+    timer = Timer(10, resetThrottle)
+
+serve()
+
+timer = Timer(10, resetThrottle)
+
+channel = grpc.insecure_channel('localhost:50051')
+stub = motorService_pb2_grpc.CarControlStub(channel)
+
+stub.SetThrottle(ThrottleIterator())
+