import sensationprotocol_pb2 as sensationprotocol
import adafruit

class MessageHandler:
  def __init__(self):
    self.pwm = adafruit.Adafruit_PWM_Servo_Driver(0x40, debug=True)
    self.pwm.setPWMFreq(60)                        # Set frequency to 60 Hz
  
  def process_message(self, message):
    command = sensationprotocol.Command()
    command.ParseFromString(message)
    
    print 'received command:\n--\n%s--' % command
    
    self.pwm.setPWM(command.actor_index, 0, int(command.intensity * 4096))
    
@@ -196,17 +196,19 @@
 PWMFreq(
-6
+170
 0)      
@@ -231,16 +231,20 @@
   # Set 
+max 
 frequenc
@@ -252,13 +252,17 @@
  to 
-60 
+(~1,6k
 Hz
+)
 %0A  %0A

Using max. supported PWM frequency