>Hi All, > >I wish to include a temperature sensor on a small board that I am designing. >I am using a 16f877 so the input is easy. What i need to know is what >temperature sensing device is needed for the range of 0 deg C. to 50 deg C. >or there abouts. The simpler the better is possible. I have never attempted >temp sensing B4. > > >Thanks All > >Mathew Cohen. You may also consider using Watchdog Timer as a temperature sensor. Its frequency changes linearly over temperature, so it's possible to build a termometer without external chip! See AN720. They claim temperature accuracy up to 1 degree Celsius. I wish to test it sometime. Regards. _ Nikolai Golovchenko, Electrical Engineering Student National Mining University of Ukraine www.nmuu.dp.ua Dnepropetrovsk, Ukraine E-mail: golovchenko@mail.ru