Update driver.c

 avrdude -p t13 -c usbtiny -n

avrdude -p t13 -c usbtiny -u -Uflash:w:BLF-VLD.hex:a -Ueeprom:w:BLF-VLD.eep:a -Ulfuse:w:0x79:m -Uhfuse:w:0xed:m