EasyTrace

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.)

CC2530 步进电机控制实验。一个简单的例程(CC2530 stepping motor control experiment)

串口与pc机通讯，51单片机例程，只需要修改io口即可实现。(Serial communication with pc, 51 MCU routine, you only need to modify the io port can be realized.)

无线传感器网络分簇路由协议中的LEACH的仿真，程序具有详细的备注，便于初学者学习。(Wireless sensor network clustering routing protocol LEACH simulation program has detailed notes, easy for beginners to learn.)

parker acr9000运动控制器上位机程序开发例子，主要包括控制器连接和断开以及读取变量(Parker acr9000 motion controller PC program development example, mainly including controller connect and disconnect and read the variable)

用Visual Basic 6.0 编写的SPY++，功能强大(SPY++ BY Visual Basic)

TFT240320彩色液晶显示屏显示程序，库文件中定义了其常用的操作函数，可直接在主函数中调用(TFT240320 color LCD display program, the library file defines its common operating functions that can be invoked directly in the main function)

NRF24L01Information Program(NRF24L01 Information Program)

51单片机数码管静态显示，计数器功能，学习如何对数据管进行操作(51 MCU digital static display, the counter function, learning how to operate the data management)

AGV小车上位机控制程序,通过TCP/IP协议来进行数据的传送(AGV car PC control procedures, through the TCP/IP protocols for data transmission)