i have given project on digital electronics appplication(combinational logic gates,flipflops...)
i have no idea what to do.
plz can u give me some ideas. i will do the rest.
Do the classic digital electronics project: a digital lock (ok, so this will be a sequential logic design, but it is still a good project to look into).
There are several beginner digital logic circuits in the Experiment Section of the AAC Ebook. There is even an example of a very simple digital lock that has already been suggested.