I want to make TEMPERATURE MONITOR UNIT and then its computer interfacing through 8051 microcontroller!!!! I am searching for the schematics for this project..I have a schematich which employ op-amplifier but the output wouldnt be able to use it in the microcontroller..!!! so what should I do???? what would u recommend to do??? I am attaching the schematic too!!!! Please help..I am stuck!!??