power_hvdc12pulse

说明：  运用stm32单片机控制板球平衡系统，运用PID控制以达到目标效果(The balance system of cricket ball is controlled by STM32 single chip computer, and the target effect is achieved by using PID control.)

capacity log added for refernces

基于stm32固件库的触摸屏实现，可用手指触摸屏幕，类似于手机的功能(Touch screen based on STM32 firmware library can be touched by fingers, similar to the function of mobile phone)

STM32,DAC程序，频率和幅度(0~3.24V)可调(STM32, DAC , frequency and amplitude adjustable)

MSP430低功耗，用霍尔元件触发，功耗极低(MSP430 low power consumption, are triggered by Holzer components, low power consumption)

RS232-RS422隔离模块电路图,隔离电压为3000V(RS232 AND RS422 communication adaptor,isolated)

说明：  使用STM32驱动AD9954 DDS模块(Driving the AD9954 DDS Module with STM32)

某公司安装了电子门，要设计门禁系统： 公司的雇员可以凭借密码、胸卡或指纹进入公司 计算机根据雇员的验证方式对其身份进行验证 管理员在监控室可以通过按钮直接开启电子门 访客可以按门铃请求进入，由管理员为其放行 管理员可以为新职员设置密码 (A company to install an electronic gate, to design access control systems: the company' s employees can rely on passwords, badges or finger into the company computer, authentication of the employee to verify their identity can be an administrator in the control room directly through the button to open electronic gates that visitors can rang the doorbell of the request to enter an administrator can be released by the administrator of its staff to set a password for the new)

说明：  强噪声背景下弱信号检测，采用平衡式取样积分电路。包含电路原理，基于IAR的msp430f149的DDS脉冲程序和峰值检波程序，检波方法：sqrt(Acos^2+Asin^2)(Strong noise weak signal detection, the use of balanced sampling integrator circuit. Contains circuit theory, based on the IAR msp430f149 of the DDS program pulse program and peak detector)

基于keil开发环境，对STM32系统板的板载LCD显示与相关配置，程序工程已通过测试(Based on keil development environment on the the STM32 system board onboard LCD display and related configuration, process engineering has been tested)