   penliftServo.write(90);
 }
 
-void writeChar(char c) {
+static void writeChar(char c) {
     
     switch(c) {
       case 'A':

  NEXTLETTER
}

void writeG()
{
  float x = position.x;
  float y = position.y;

  NEXTLETTER
}

static void writeI()
{
  float x = position.x;
  float y = position.y;
