2 line LCD, read : \x7a\x01
2 line LCD, read backlight : \x7a\x04
2 line LCD, read cursor : \x7a\x03
2 line LCD, read format : \x7a\x06
2 line LCD, read text : \x7a\x02
2 line LCD, write backlight : \x7a\x84[value]
2 line LCD, write clear : \x7a\x85
2 line LCD, write cursor : \x7a\x83[x][y][status][blink]
2 line LCD, write text : \x7a\x82[text]
800-peripheral, read output module : \xf2\x81[config]
800-peripheral, write output module : \xf2\x01[config]
500