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GPS模块与单片机89s51之间的数据通信，单片机存储定位信息，并在LED上显示出来-Single-chip GPS module and the data communication between 89s51, single-chip storage location information, and displayed in the LED

用VKDL语言编写的PWM控制程序很有用本例只做了5路PWM-VKDL languages with PWM control procedures useful in this case only a 5 PWM

八路抢答器，有计时功能，计分功能当有选手抢答时可以显示台号-Octal Responder, with time-keeping. Scoring function

EMC单片机解码EV1527，LX1527的C源码。-EMC single-chip decoder EV1527, LX1527 the C source.

51单片机浮点子程序库(中),直接嵌入,方便使用.-51 single-chip floating-point subroutine library (middle), directly embedded, user-friendly.

多功能电子数字钟的设计 带语音报时功能 比赛做的 -Multifunction Electronic Digital Clock Design Competition with voice timekeeping function to do the

注:protel电路图 1.INPUT12为高压气压和低压压传感器输入端. 2.OUTPUT为充气输出控制端. 3.当高低压有接地信号时,电机正转,气阀打开. 4.INPUT2低气压时有信号时,充气OUTPUT输出,充气电机转. 5.RS1与RS2是调节阀门距离用地 6.RS3是与气阀电机同步时,是气阀电机的转动圈数传感器. 7.RS4是调节延时时间用地-Note: protel circuit 1.INPUT12 and low-voltage high-pressure pneumatic pressure sensor input. 2.OUTPUT output control for the inflated side. 3. When the high and low pressure have a grounding signal when the motor is transferred, the valve opens. 4.INPUT2 low pressure when there is signal output OUTPUT inflatable, inflatable motor switch. 5.RS1 and RS2 is the regulator valve from the land 6.RS3 synchronous motor with the valve, the valve motor is rotating circle the number of sensors. 7.RS4 delay time to regulate land

atmel公司atmega单片机bootloader的源代码-ATmega Atmel single-chip companies bootloader source code

H4100射频卡驱动程序，该程序应用久经考验-H4100 RF card driver, the application of tried and tested procedures

本人学习51时老师的课件。供学习51的朋友参考学习.-for study 51 reference.