基于AT89S52单片机，驱动ISD4004语音芯片，进行录音/播音等功能，还加上了触摸屏功能和液晶显示功能，7843.h是触摸屏的驱动部分，12864.h是LCD驱动部分。key.h是4X4矩阵键盘驱动部分。-AT89S52-based single-chip, voice chip ISD4004 drive for recording/audio and other functions, also added a touch-screen LCD features and functionality, 7843.h is part of a touch screen driver, 12864.h is part of LCD driver. 4X4 matrix key.h is part of the keyboard driver.