Abstract: With the entry into force of The Minamata Convention on Mercury, the most commonly used mercury thermometers will be withdrawn from the market due to mercury toxicity, and electronic thermometers are inconvenient to be popularized and used due to their high price and limited life. In view of this situation, a simple and fast intelligent thermometer is designed, which uses NTC thermistor to collect temperature and MSP430 single-chip microcomputer to process function, can measure temperature quickly and realize intelligent alarm of abnormal temperature, it has high practical value.

Key words: NTC, Body temperature, MSP430, Alarm