目 录
基于单片机的洗衣机控制电路设计.....................................................................................................I
摘 要.......................................................................................................................................................I
ABSTRACT..........................................................................................................................................II
目 录.......................................................................................................................................................0
第1章 引 言............................................................................................................................................1
1.1 本课题研究的目的和意义........................................................................................................1
1.2 洗衣机的发展和分类................................................................................................................1
1.3 洗衣机的基本工作原理............................................................................................................2
1.4设计论文的主要容与基本要求.................................................................................................3
第2章 设计方案与论证.........................................................................................................................4
2.1 方案论证....................................................................................................................................4
2.2 洗衣机整体电路分....................................................................................................................5
第3章 硬件系统设计.............................................................................................................................7
3.1电源部分.....................................................................................................................................7
3.2数字控制电路部分.....................................................................................................................9
3.2.1
单片机主控模块
.................................................................................................................9
3.2.2 74138
译码器
....................................................................................................................12
3.2.3LED
显示模块
..................................................................................................................14
3.2.4
按键输入模块
...................................................................................................................16
3.2.5
蜂鸣器报警模块
...............................................................................................................16
3.2.6
指示灯模块
......................................................................................................................17
3.3机械控制电路部分...................................................................................................................18
3.3.1
电控水龙头
.......................................................................................................................18
3.3.2
水位检测机构
...................................................................................................................18
3.3.3
电动机控制
......................................................................................................................20
3.4 硬件系统整机电路..................................................................................................................21
第4章 软件设计...................................................................................................................................22
4.1 程序流程图..............................................................................................................................22
4.2 程序设计..................................................................................................................................25
第5章 系统工作流程...........................................................................................................................26
第6章 结束语.......................................................................................................................................27
致..........................................................................................................................................................28
参考文献..............................................................................................................................................29
附录1 整机电路图...............................................................................................................................30