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舵机stm51控制 实现舵机转动使用，左右摇头(Steering engine stm51 control Realize the use of steering gear and shake head from left to right)

基于51单片机的环境噪声检测仪 含proteus仿真文件一份noise.dsn Keil工程文件一套 主程序代码main.c 6篇相关文献及毕业设计论文 仿真通过(Based on 51 single-chip environmental noise detector proteus simulation file containing a set of project files noise.dsn Keil main code main.c 6 relevant articles and graduation thesis design through simulation)

RC522的51例程，包括电路图等，非常适合初学者。(51 of RC522 routines, including circuit diagrams, very suitable for beginners.)

实现单片机演奏简单的声调乐曲，外连无源喇叭效果较好(Simple tonal music microcontroller played outside with passive speakers better)

说明：  2015年电赛国测题，频率测量。基于stm32的频率测量。优点：精密度高，代码简单(In 2015, the National Test of Electricity Competition, Frequency Measurement. Frequency measurement based on stm32. Advantages: High precision, simple code)

超声仿真field ii教程,学习的好帮手(Ultrasound simulation field ii tutorial)

51单片机模拟1527编码发射，已编译验证通过(51 1527 microcontroller simulation coding launch compiled validated)

富士门禁的二次开发包，含485和tcp两种协议；(Fuji access control two development kits, including 485 and TCP two protocols;)

基于atmega16的步进电机驱动程序，实现正反转及调速等功能。(Based atmega16 stepper motor driver, and achieve positive and speed functions.)

说明：  STM32F072C8T6单片机读写中颖锂电池模拟前端SH367309的读写I2C程序，16串的电池AFE(STM32F072C8T6 MCU read and write Sinowealth SH367309 I2C program)