how to serial.read multiple vars at once [solved]

Forum 2005-2010 (read only) General Frequently-Asked Questions
12 
if(Serial.available()){

    switch (Serial.available()){

    case 'r':
      col[0] = Serial.read();

      break;

Serial. available tells you how many characters are available, not their value.
You can't use it in this way.