基于easyarm2200的混合HID设备（鼠标+键盘）

用AD603提高超声波测距范围。超声波测距是一种非接触的测量方式，它是根据超声波从发射传感器到反射物体，再从反射物体到接收传感器的延迟时间.，利用距离/01. 2 ’，得到距离值，1 为声波在空气介质中的传播速度。由于反射超声波接收时的信号幅度与反射物体离接收传感器的距离远近有关，一般相差几十分贝-Ultrasonic Distance Measurement with the scope of AD603 improve. Ultrasonic Distance Measurement is a non-contact measurement, which is the ultrasonic sensor to the reflection from the launch of objects, objects from the reflector to the receiving sensor delay time., The use of distance/01.2, the distance values, one for the sound waves in air medium velocity. Receive as a result of reflection at the time of ultrasonic signal amplitude and the reflection from the object to receive the sensor distance, generally a difference of tens of decibels

PIC18F4431的电机控制程序,交流马达例程-PIC18F4431 Motor control procedures, exchange of motor routines

以太网控制器cs8900a和DsP的TCP/IP通讯。DSP采用2812.-DsP Ethernet Controller cs8900a and the TCP/IP communications. DSP using 2812.

单片机proteus仿真，可以做成实例的仿真文件-proteus proteus

本人收集和自己写的部分51系列例程,供各位参考-I collect and write their own routine part of 51 series for your reference

CRC32，适用于internet,文件等的校验，可靠程度比CRC32高，但运算要比CRC16复杂，需要的占用的代码空间也大一点-CRC applied to internet, checking the documents, reliable than CRC, but the operation than CYXLIC REDUNDANCY complex, requiring the occupants of the large code space 1:00

这是一个用128*64液晶显示的俄罗斯方块游戏，代码独特，用的是52单片机。-This is a 128* 64 LCD display Tetris games, unique code, using a single-chip microcomputer 52.

用中断的方式控制lcd的显示，单片机仍然是h83664十六位单片机。此程序包含单片机的接口的配置以及各种写lcd的子程，使用中断来控制lcd顺序显示A－Z，当然，可以换成其他的显示内容，由于接口程序已经编好，只需要把要显示的内容改一下就可以实现其他内容的显示-With interruption control lcd display, single-chip is still 16 Singlechip h83664. This procedure includes the configuration of single-chip interface and a variety of writing a sub-lcd-way, the use of interrupt to control the order in lcd display A-Z, of course, can be replaced by other display content, as a result of interface procedures have been developed only to To display the contents of change can be achieved about the display of other content

一个数据库引擎,可以创建和读写DBF格式的数据库文件-A database engine, you can create and read and write DBF database file format

会议计时器，以MCS51单片机为核心，实现会议演讲定时提醒功能，可以进行设定时间，倒计时，暂停，蜂鸣器提醒或灯光提醒等功能-Session timer to MCS51 single-chip microcomputer as the core, the realization of the meeting from time to time to remind the function of speech, you can set time, the countdown, suspension, or a buzzer to remind lighting functions to remind