Sir,what about AT89S52,I read it has inbuilt SPI.which are P1.5/MISO,P1.6/MOSI and P1.7/SCK.It is because i am use to 8051 microcontroller and that is the reason why i am using it and i have already done the LM35 interfacing with it.But if you have any suggestion for the microcontroller i should use and how i am going to handle it,i will be very greatful sir.Thanks