Hai,
I am a hobbiest engaged in Picmicro Study. I have did some simple projects but would like to do some real world applications like door sequrity water level controllers etc .That is projects which could help me to master A/D conversion I2c bus communucation etc.So far I was not able to locate one. can anybody help or suggest some books or anything.

 

I have designs and code for I2C on my PIC tutorial pages at http://www.winpicprog.co.uk/pic_tutorial.htm, including using an I2C A2D convertor. Using the in-built A2D in a 16F877 etc. is quite simple to do, I can post code if you like.