Hi Udith,If your

[AJISH ALFRED]

Hi Udith,

If your microcontroller is having a built in ADC, then refer this image,

 

http://www.google.co.in/imgres?imgurl=http%3A%2F%2Fwww.amwei.com%2Fpima%2Fcircuit%252520with%252520NTC%252520thermistor%252520and%252520microcontroller.jpg&imgrefurl=http%3A%2F%2Fwww.amwei.com%2Fnews.asp%3Fnews_id%3D81&h=224&w=337&tbnid=94JLbCDJkXUMUM%3A&zoom=1&docid=CKGXFuaJn3fnSM&ei=1rdHU7bgD4mzrAfEyoHgBg&tbm=isch&client=firefox-a&ved=0CFMQhBwwAA&iact=rc&dur=1839&page=1&start=0&ndsp=15&biw=1360&bih=629

 

otherwise refer this image

 

http://www.google.co.in/imgres?imgurl=http%3A%2F%2Fwww.analog.com%2Fstatic%2Fimported-files%2Fimages%2Fverified_circuits%2FCN0153_01_1024.gif&imgrefurl=http%3A%2F%2Fwww.analog.com%2Fen%2Fcircuits-from-the-lab%2Fcn0153%2Fvc.html&h=788&w=1024&tbnid=1qjFTKxsVU3rxM%3A&zoom=1&docid=VussQwX2RSU7eM&ei=1rdHU7bgD4mzrAfEyoHgBg&tbm=isch&client=firefox-a&ved=0CGIQhBwwBQ&iact=rc&dur=519&page=1&start=0&ndsp=15&biw=1360&bih=629