pcblib

用simulink搭的离散PID，可以用自动生成代码再下载进单片机运行(With simulink take discrete PID, can be used to automatically generate code and then downloaded into the microcontroller operation)

MSP430F5529开发板的蜂鸣器例程(MSP430F5529 development board routines buzzer)

88点阵扫描显示字模，数码管显示，通用51单片机适用(88 dot matrix display font scan, digital display, single chip for general-purpose 51)

c8051f060定时器0，系统时钟，交叉开关IO配置(C8051F060 timer 0, the system clock, switch IO configuration)

说明：  绝对精美的万年历，12864+ds1302+ds18B20,支持公历，农历，温度等。功能非常全，非常精美。(Absolutely beautiful calendar, 12864+ Ds1302+ Ds18B20, in support of the Gregorian calendar, the Lunar and temperature. Very wide, very delicate.)

简易秒表，用stc89c52主控制，数码管显示(Simple stopwatch with stc89c52 master control, digital tube display)

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)

利用STM32主控单元与三轴陀螺仪MPU6050。MPU6050进行倾角测量，对测得的加速度和角速度数据进行AHRS数据融合，最终得到姿态角，姿态角再进行卡尔曼滤波。STM32单片机控制步进电机运动，对检测到的姿态角做最优控制。(Development of a Robot Balanced on a Ball)

说明：  矩阵按键，数码管显示状态及选手，蜂鸣器提示音(Matrix keys, digital display status and player, buzzer prompt sound)

结合电力电子技术，在不同占空比的情况下调节不同的电压，实现对直流电机的开环调速控制(Combined with power electronics, different duty cycle in the regulation of different voltage, to achieve the DC motor open-loop speed control)