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Coding
int servoPin = A5;
Servo myServo;
int servoPos = 0;

void loop() {
}

int servoControl(String command)
{
    // Convert
   int newPos = command.toInt();
   // Make sure it is in the right range
   // And set the position
   servoPos = constrain( newPos, 0 , 180);

   // Set the servo
   myServo.write( servoPos );

   // done
   return 1;

}
void setup()
{

  // attaches the servo on the A7 pin to the servo object
  myServo.attach( A5 );

   //Register our Particle to control the servo
   Particle.function("servo", servoControl);

  // Keep a cloud variable for the current position
  Particle.variable(  "servoPosition" , &servoPos , INT );

}
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