这是我做的关于考勤机的一些测试程序，请大家积极下载，很有帮助。...

Z8读卡器开发接口，就是公交车上刷卡那种，含VB和VC源码，有兴趣的朋友可以来看看哦。-humanized reader interface development is busload 0800-099799 kind, including VB and VC source, Interested friends can view flash open her cloak.

delphi编写的com程序,自己可以添加功能,可用做串口调试-com prepared by the procedures, they can add functionality and can be used for debugging serial

一个C语言编写的串口程序，用于UNIX平台-a C language Serial procedures for the UNIX platform

串口通信PC机应用程序-PC serial communication applications

vb api 进行串口通信-vb api for Serial Communication

串口编程的是反例子，可用于测试你的串口通行-anti-examples can be used to test your serial port access

Viertex 2 开发板的接口程序，使用VC编写。-100 2 development board interface, the use of VC prepared.

plc中基于数据采集、发送接收、驱动、写入数据库-plc-based data acquisition, send to receive, drive, write to the database

实现一维Barcode扫描，能在Pocket PC上运行，带有一个Barcode_ce.dll.

的问题.派尔高协议,控制左转右转时,出现问题.其他功能好用.我用DELPHI写的程序,在MOUSEDOWN中, str := chr($FF)+chr($01)+chr($00)+chr($04)+chr($0F)+chr($00)+chr($14) MSComm1.output := str 在CLICK事件中: str := chr($FF)+chr($01)+chr($00)+chr($00)+chr($00)+chr($00)+chr($01) MSComm1.output := str -Problem. Pelco agreement左转右转control when there are problems. Other features easy to use. DELPHI I used to write the procedures in the MouseDown, str: = chr ($ FF)+ Chr ($ 01)+ chr ($ 00)+ chr ($ 04)+ chr ($ 0F)+ chr ($ 00)+ chr ($ 14) MSComm1.output: = str in the CLICK event: str: = chr ($ FF)+ chr ($ 01)+ chr ($ 00)+ chr ($ 00)+ chr ($ 00)+ chr ($ 00)+ chr ($ 01) MSComm1.output: = str