Simulation Design of the Temperature Displaying and Warning Circuit Based on Single Chip

One kind of temperature displaying and warning circuit model is introduced using Proteus combine with Kile as design software.The 8051 singlechip is used as the control core,the PT100 sensor is used to detect the temperature of the environment,the output electric signal is modified and amplified,then A/D converted,into the microprocessor at last,realized numeral displaying and indicator lights which will alarm when the temperature is exceed the limit.