LCD1602 字符屏测试程序，驱动芯片44780

用于上位机和下位机通信的人机界面及串口接口程序-For the upper and lower man-machine communication interface and serial interface program

ISD4003-4M语音的详细使用说明，和ISD4003-4M的技术资料！-ISD4003-4M detailed voice instructions, and ISD4003-4M technical information!

单片机入门教学-Singlechip tutorial

PC机与单片机之间通过串口进行通信 已测试通过-Between PC and MCU to communicate through the serial port have been tested

在lpc2114 上的ADS例子，是学习GUI 的好例子，上面还附带有protues仿真的工程-ADS in the lpc2114 example is a good example of learning GUI, the above also comes with protues simulation project

我的89S52设计作品之一：基于89S52单片机的数值电压表：该电路采用MAX187高精度A/D转换器，采用串行输出，测量范围直流0-20伏，使用1602LCD液晶模块显示，使用了双积分电路的原理.-One of my design work 89S52: 89S52 microcontroller-based voltmeter values: the circuit with MAX187 high-precision A/D converter, serial output, measuring range 0-20 volts DC, using 1602LCD LCD module shown that the use the principle of double integral circuit.

此函数把SPI的读写功能集成在一块，传递的val既是向SPI写的数据，也是从SPI读取的数据，只需要在执行读或写之前把MCU的I/O脚设置成相应的输出或输入即可。（因为在大部分应用中，是把SPI的DI和DO相连并用MCU的一个IO口来读写）。-This function of the SPI read and write functionality into a single, transmission of val is not only written to the SPI data is read from the SPI data, only need to read or write in the implementation prior to the MCU

定时计数器的c语言编程，这是在单片机编程不可缺少中央部分。-Timer counter c language programming, which is indispensable in the central part of microcontroller programming.

FYD12864-0403A中文使用手册。有需要的朋友请下载-Chinese FYD12864-0403A user manual. Friend in need, please download

门禁系统读卡器源码 有助于了解其工作原理 帮助开发单片机-Access Control System source code will help readers understand the principles of its work to help develop single-chip microcomputer