characters-and-Unicode

基于stm32开发的频率检测及液晶显示，在显示时的测量范围为50hz到100khz。误差为<=1%。(Frequency detection and liquid crystal display based on stm32)

用STM32F103单片机做的汽车OBD诊断仪，可以读取整车CAN线上，汽车发动机转速，车速等信息，对CAN通信学习有一定帮助，本代码支持所有标准CAN车型。(STM32F103 microcontroller to do with car OBD diagnostic, read the vehicle CAN line, automobile engine speed, vehicle speed and other information, to learn some help CAN communication, the code supports all standard CAN models.)

说明：  下面的程序利用友元函数求两点间的距离。请你将有关的程序补充完整，并总结为什么这里要用友元函数来求两点间的距离。(using friend to get the result.)

根据换热器机理模型建模，编写仿真程序，模拟换热器出口温度(According to the mechanism of the heat exchanger modeling, writing simulation program to simulate the heat exchanger outlet temperature)

按键判断 进行行扫描m表示对应的行数 n表示对应的列数 对应数值亮(Judgment keystroke scan lines express the corresponding m number of rows n that corresponds to the number of rows corresponding numerical Liang)

用51单片机设计出超声波测距，并用串口显示(Design with 51 ultrasonic ranging, and serial display)

Test case 241395768 : 1357 3, This is performed three times And for each iteration 9 is performed thrice.

抢答器 实现抢答可以自己编程实现很多人同时抢答 有用 可以试试(Quick answer implement Quick answer can be programmed to achieve a lot of people at the same time Quick answer useful can try)

欧姆龙可编程控制器驱动程序欧姆龙可编程控制器驱动程序(omron sysmac cp1h progremmable dev1ce dirver)

说明：  Arduino单片机开发笔记2-7,希望大家都看看(Arduino microcontroller development notes 2-7, we want everyone to see)