The Design Based on the Intelligent Thermometer of Single Chip Microcomputer
Abstract:This paper applies AT89C52 and DS18B20 and LCD 1602 player to design microcomputer intelligent thermometer which based on single chip. This design mainly includes the main controller, the micro-controller reset, emergency alarm button, clock shock, temperature sensor and LCD display module, and uses the C programming language as well as Keil’s C51 and Protues’s simulation software. The validation of the simulation shows that this design can facilitate temperature acquisition and display; set upper and lowest temperature according to the need, which can compare with the detected temperature signal of the single chip microcomputer to determine whether to start the heating cooling device or not to maintain a constant temperature. And this designs also other qualities, such as high precision, wide range, high sensitivity, small volume, low power consumption, etc.
Key words: AT89C52; DS18B20; LCD 1602