i want to interface a PC to micro controller 89c51 through serial port......it has 9 pins.....i dnt knw how to interface them with 89c51 controllerr...plz help me out.....................................
i have uploaded a project on 'PC based device control'. you can download it from here https://free8051projects.blogspot.com/
it has circuit diagram, source code, system files etc.
password: welove8051.com
If you wish to implement something specific, please share, others may have a solution and idea. This is part of Engineering and M.Sc course, so you will get lot of support on the subject.
Raoof