Hi i am new for PIC micro-controllers, can anyone tell me how to interface it with lcd display and about its ADC pins.. please i need help in short time... also add about keypad interfacing... i' have proteus simulator and micro C compiler... and i will use PIC 16F877A

 

You don't ask for much do you?

You can start here:

http://www.best-microcontroller-projects.com/lcd-volt-meter.html

and here

http://www.mikroe.com/eng/chapters/view/17/chapter-4-examples/#c4v12

and here

http://www.mikroe.com/eng/chapters/view/17/chapter-4-examples/#c4v9

 

I'd suggest getting a C compiler first, then getting an LED blinking, so you are comfortable with the ports and registers, and get an understanding of how fast the code runs (very, very fast).

The reason I bring up speed is writing to an LCD is a "slow" process, and the timing needs to be right. It's still not rocket science, and a good compiler (MikroC or BoostC) provide libraries to do all the dirty work for you. Another reason to pick a compiler or two, then learn all about it in detail to find a "preferred" compiler. Things will seem much simpler after that point.

If you don't know C, Mikro and Boost provide BASIC language, as well as some other (sort of expensive) BASIC only compilers.

 

Check out these PIC tutorials using mikroC.
http://embedded-lab.com/blog/?page_id=26