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直流发电机的调速程序，使用的是STC12C5A的单片机，采用PWM技术来调节他的速度，简单便捷。(DC generator speed control program use is microcontroller of STC12C5A, and PWM technology to adjust his speed, simple and convenient.)

将嵌入式中LCD显示的点阵数据转换成BMP格式的图片。(Converting the data embedded in the matrix LCD display into a BMP format images.)

应用51单片机写的蜂鸣器的祝福歌,里面有详细的代码(51 microcontroller blessing song written by buzzer)

本工程为著名开源飞控autoquad的Keil工程，大家可以下载下来，直接用Keil 5.2编译通过。(This project is well-known open source flight control autoquad Keil works, you can download, compile with Keil 5.2 directly.)

矩阵键盘1602液晶显示键值 矩阵键盘定义： * * P1.0-P1.3为列线,P1.4-P1.7为行线 * * 喇叭接P3.7口 矩阵键盘P1口，1602LCD (1602 keyboard matrix liquid crystal display the definition of key matrix keyboard:* * P1.0-P1.3 for the out-line, P1.4-P1.7 for line* * speakers then I P3.7 port P1 keyboard matrix, 1602LCD)

在stm32单片机上，用IO口的上升沿和下降沿中断设计的I2C从机代码。测试通过。所有过程用状态机来控制，没有cpu空延时。 核心代码和单片机相关代码分开，方便移植。 主要用在项目验证和学习交流！(On stm32 microcontroller, with rising and falling IO port interrupt design of I2C slave code. The test. All the process is controlled by a state machine, no cpu empty delay. Microcontroller core code and related code separate, easy to transplant. Mainly used in the project validation and exchange of learning!)

单片机C语言程序设计实训100例——基于8051+Proteus仿真(Microcontroller C Programming Language Training 100 cases- based 8051+Proteus simulation)

MPPT太阳能充电程序，AVR单片机主控ATMEGA32(MPPT solar charge program, AVR microcontroller master ATMEGA32)

乾勤TC275开发板例程,Capture/Compare Unit 6 (CCU6)模块(Qianqin TC275 DEMO,Capture/Compare Unit 6 (CCU6)demo)

STM32在线更新，代码测试完成，绝对可用。(STM32 online update, code testing completed, absolutely available.)