void setup()
{
  printf("welcome message");
  sleep( 3000 ); // for 3 seconds

  pinMode( ROCKER_SWITCH_PIN, OUTPUT );
}


void loop()
{

  if ( digtalRead( ROCKER_SWITCH_PIN ))
  {
	 Speed slowly accelerates to lowest of 3 speed levels
		If blue button pressed and current speed is not already highest level
			Speed goes up one level
		Else If red button pressed and current speed is not already lowest level
			Speed goes down one level
	Show speed level on display
If rocker switch is off
	Show “motor is off” message on display
	If speed is greater than 0
Speed slowly decreases to 0
	Else If speed is already 0
		Do nothing