int i = 126;
  2 char c = '~';
  3 char n = 126;
  4
  5 void setup()
  6 {
  7   Serial.begin(9600);
  8   while(!Serial)
  9   {
 10     continue;
 11   }
 12 }
 13
 14 void loop()
 15 {
 16   Serial.write(i);
 17   Serial.println(i);
 18   Serial.write(c);
 19   Serial.println(c);
 20   Serial.write(n);
 21   Serial.println(n);
 22   while (true)
 23   {
 24     continue;
 25   }
 26 }