Graduated from a design gadgets. Design Notepad voice broadcast system for the use of single-chip microcontroller AT89S52, through control of ISD4004 voice storage and playback. PCF8563-based system provides information such as time and calendar. When the recording and playback time, PCF8563 pieces can also be used as a timer. External keyboard and LED matrix displays, to facilitate dialogue between man-machine. Recording the system can playback up to 16 minutes. Compressed packet has its own undergraduate thesis, procedures and schematic diagram. A certain reference value.

The system of voice record and playback
........................................\1
........................................\.\ALL.C
........................................\.\ALLGAI.C
........................................\.\ALLGAI1.C
........................................\.\ALLGAI2.C
........................................\.\ALLGAI3.C
........................................\.\ALLGAI4_CASE.C
........................................\.\AT24C64.C
........................................\.\CESHI.C
........................................\.\GAI61.C
........................................\.\GAI610.C
........................................\.\GAI6100.C
........................................\.\GAI6101.C
........................................\.\GAI6102.C
........................................\.\I2C.C
........................................\.\ISD4004.C
........................................\.\ISD4004BOFANG.C
........................................\.\ISD4004BOFANG1.C
........................................\.\ISD4004CESHI.C
........................................\.\ISD4004CLUYING.C
........................................\.\ISDBOFANG.C
........................................\.\ISDGAI.C
........................................\.\JIANPAN.C
........................................\.\paomadeng.C
........................................\.\PCF8563.C
........................................\.\PCF8563_1.C
........................................\.\PCF8563_CHECK.C
........................................\.\PCF8563_CHECK_LED.C
........................................\.\SETTIME.C
........................................\.\T1.C
........................................\.\TIZHONG.C
........................................\.\YANSHI.C
........................................\2
........................................\.\Backup of Schlib1.Lib
........................................\.\MyDesign.ddb
........................................\3.doc
........................................\readme.txt

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