Designed primarily with the digital temperature sensor DS18B20 to collect outside temperature, the design of the hardware part of the core device for single-chip 89S52. Through the preparation of a large number of C language program to support single-chip receiver to achieve the temperature, conversion, storage and display and so on, eventually the temperature through the digital tube display. Software through the adoption of smart plate 2 RXD, TXD communications, a smart board display temperature through RXD Send to another smart board and displayed.

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