精选优质文档- 倾情为你奉上专心-专注- 专业本科毕业设计（外文翻译）题 目 基于单片机的电子密码 锁的设计与制作 姓 名 杜 祥 专 业 电子科学与技术 学 号 指导教师 李大海 郑州科技学院电气工程学院精选优质文档- 倾情为你奉上专心-专注- 专业 二一四年五月精选优质文档- 倾情为你奉上专心-专注- 专业THE DESIGN OF MATRIX KEYBOARD AND LCD DISPLAY BASED ON MCUAbstractThe development of microelectronics technology and industrial measure requirement bring a good opportunity for development and research system，which makes it a broad prospects. The equipment has the advantages of small size, single power supply and a variety of output voltage l
