def display_char(self, x, y, char):
self.send_cmd("<STR_LIT:T>"+str(x+<NUM_LIT:1>)+"<STR_LIT:U+002C>"+str(y+<NUM_LIT:1>)+"<STR_LIT:U+002C>"+char)<EOL>
Display character "char" with its top left at "x,y"