红外线

说明：  用PCF8591AD/DA模块连接51单片机，实现AD转换并在LCD1602上显示值(Using pcf8591ad / DA module to connect 51 single chip microcomputer to realize AD conversion and display value on LCD1602)

单片机驱动静态数码管程序，实现数码管的静态扫描驱动(Static digital tube driver program MCU, realizes the static scan of digital tube driver)

51单片机C语言学习，C语言来编写单片机程序。Proteus仿真。(51 MCU C language learning, C language to write MCU program. Proteus simulation.)

实现多量程高精度数字电压的测量，基于proteus 和keil(digital volager)

说明：  单片机上电以后LCD屏上显示欢迎回家， 先验证指纹再验证密码 ，同时验证成功开锁 指纹和密码分别可以验证3次 3次都错蜂鸣器响 ，按下manage键进入管理员模式 可以修改密码 删减指纹，指纹用开关量表示(After the microcontroller is powered on, the LCD screen shows welcome home. First verify the fingerprint and then verify the password. At the same time, verify the successful unlocking fingerprint and password can verify that the buzzer rings three times and three times respectively. Press the management key to enter the administrator mode to modify the password and delete the fingerprint. The fingerprint is expressed by the switch.)

IR decoding digital display

ModbusMaster 基于modbus的网络编程，可读写(ModbusMaster based on Modbus network programming, read and write)

基于51单片机的计步器程序加Proteus仿真，实现记步(Plus Proteus simulation to achieve record 51 single step pedometer-based program)

用C语言编写的51单片机智能小车程序；该小车能自行循迹，超声波避障和测距，液晶显示信息以及红外遥控等功能；(The 51 single-chip intelligent car program written in C language can track itself, avoid obstacles and measure distance by ultrasound, display information by LCD and infrared remote control.)

STM32使用USB进行程序IAP升级的源程序，经过实际验证，非常好用(STM32 IAP upgrade using USB for program source code , very easy to use)