ch-10 clean

ch-10/1-follow/robot.py

@@ -29,6 +29,7 @@ def stop():
     motor_B1.duty_cycle = 0
     motor_B2.duty_cycle = 0
 
+
 def set_speed(motor, speed):
     # Swap motor pins if we reverse the speed
     if speed < 0:
@@ -36,15 +37,16 @@ def set_speed(motor, speed):
         speed = -speed
     else:
         direction = motor
-    speed = min(speed, 1) # limit to 1.0
-    max_speed = 2**16-1
-
+    speed = min(speed, 1)  # limit to 1.0
+    max_speed = 2 ** 16 - 1
 
     direction[0].duty_cycle = int(max_speed * speed)
     direction[1].duty_cycle = 0
 
+
 def set_left(speed):
     set_speed(left_motor, speed)
 
+
 def set_right(speed):
     set_speed(right_motor, speed)