Since the single chip microcomputer

Since the single chip microcomputer is a kind of digital system with accuracy reaching to the digital level, my first idea is a good choice of digital temperature sensor. DS18B20 in the digital device is a very good one. The sensor has a small volume device which is a single bus digital temperature sensor. The sensor can be simple and superior to the serial data enclosure and the system can be transferred to the resolution structure point of the system, and the temperature signal can be directly transmitted Convert word signal, then single-chip microcomputer, let single-chip microcomputer to carry out a series of processing, to achieve temperature display. In addition, DS18B20 adopts a small 3-pin package structure with temperature sensing. The temperature is measured from - 55 ° C to + 125 ° C, and the temperature can reach 0.0625 ° C. its measurement range and design requirements are met