Recieved serial data is intepret and sendt to a LCD display
The String $LCD,Line 1,Line 2  Shows the folowing on the display:
Line 1
Line 2
Removed \n in last CMD message
Python program for the SerialShowLCD.ino example
Sends the line below to the Arduino
   $LCD,Hello Line 1,Hello Line 2\n
Removes '\n' on last element