Stephen Zahra writes:
This Digital Thermometer Design is done by using the 8051 microcontroller AT89C51AC2 and interfaced with an LCD to outputs the Temperature. THe sensor used for this design is the LM35 which output an analogue voltage per centigrade celcius. A circuit amplification is done between the LM35 and the microcontroller.
8051 Digital Thermometer – [Link]