 
 // physical:
 const float WHEEL_RADIUS = (2.0 + 0.125) * 2.54; // 2 inch wheel + 1/8" grommet, in cm
-
+const float MAX_POSITION = 51.0; // in cm
 
 
 

    // reset the timer
    updateTime = now;
    
    // local debug -- you can get rid of this
    //Serial.println("send one");
  } // end if
  
  updateSpeed(elapsed);
  checkLimitSwitch();
  
  // check for incoming messages 
  etherOSC.listen();

  Timer1.start();
  
  Timer1.attachInterrupt(countSteps);
  
  //Serial.begin(9600);
}

void loop() {
