文档介绍：基于MSP430的温湿度测量仪设计
集美大学信息工程学院
电子信息工程专业2006届学号:
【摘要】本设计以MSP43F437单片机为核心,采用集成化的数字温度湿度传感器,实现了对温度湿度的测量、显示、存储、传输、打印。来自温湿度传感器信号IIC总线进入MSP430F437,在MSP430F437中,温度湿度数据一方面送LCD显示;另一方面将温度湿度数据存储在AT25256中,存储下来的温度湿度数据可以经RS232总线传输到PC中,在PC应用程序中,可以对温度湿度数据进行曲线显示,并可以打印报表。同时还可以通过按键对温度湿度测量的时间间隔、是否存储、起始时间等参数进行设置。此外,还采用VB编写了PC端应用程序。整个系统可以外接9V DC电源供电,可以采用9V锂电池供电,由于MSP430单片机的超低功耗特性,以及程序设计中采用低功耗设计方式,使得整个系统非常省电,特别适合于手持式仪表。
【关键词】温度测量湿度测量 MSP430
The Design of Temperature and Humidity Meter Based on MSP430
Information Technology College of Jimei University
Major of Electronic Engineering ,2006 YANYU YANG ,NO:2002820036
[Abstract] In this design, I use the MSP43F437 for core and take an integration numerical temperature sensor to carry out the measuring of the temperature degree and the humidity, and to show, to save, to transmit, to print the result of the measuring. The ing from the sensor is transmitted to the MSP430F437 through the IIC BUS. The data that we have gathered will be show in the LCD and will be deposited in the AT25256. The data we have deposited can be transmitted to the pc through the RS232 BUS. We can show the data by a curve in PC in virtue of application program, and we can also print the report forms. We can set the time partition, start time and can decide whether deposit the data or not through the keyboard. In addition, I also write the PC application program using VB. The system power is supply by 9V DC. We can drive the system by the 9V Lithium battery. Thanks to the low power exhausts characteristic of the MSP430, and we design the program in purpose of saving power, the system consume little, and the system is specially suitable for handheld appearance.
[Key Words] Temperature Measure Humidity Measure MSP430
目录
摘要 i
Abstract ii
目录 iii
引言 2
第一章温湿度测量仪设计方案 2
系统基本要求 2
2
2
第二章温湿度测量仪的硬件设计 3
MSP430F437介绍 3
4
4
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6
AT25256介绍 6
SPI协议介绍 7
7