本科论文目 录摘 要........................................................................................................................IAbstract.....................................................................................................................II引 言.......................................................................................................................31 系统总体架构........................................................................................................61.1 需求分析与方案设计...................................................................................61.2 系统架构.......................................................................................................71.3 系统器件选择...............................................................................................72 系统硬件设计........................................................................................................92.1 单片机外围电路设计...................................................................................92.2 LCD1602 液晶显示电路设计....................................................................142.3 电机外围电路设计.....................................................................................152.4 供电电路设计.............................................................................................163 系统软件流程设计..............................................................................................173.1 系统总体流程.............................................................................................173.2 LCD 显示程序设计....................................................................................183.3 液位传感器的程序设计.............................................................................193.4 电机定时与转速控制程序设计.................................................................193.5 按键控制程序设计............................................
