51必备

12232液晶控制（sed1520）驱动程序-12232 LCD control (sed1520) driver

这是一个用单片机来演奏音乐的程序，很通俗易懂，里面有源程序和HEX烧录文件-This is a single-chip to play music with the procedure, it is easy to understand, which has source code and HEX file burner

一个基于stc89s52 nRF2401的demo代码，-Stc89s52 nRF2401 based on the demo code,

ST7920控制器的12864液晶的测试程序，显示文字和两幅图片，按文件定义接线就可以使用-ST7920 LCD controller 12864 test procedures, display text and two pictures, according to the file, you can use the definition of cable

关于电路设计的几点经验，从原理设计到实际应用，对一些个问题、经验综述-Points on the circuit design experience, from design to practical application of the principle of some question, synthesis of lessons learned

使用protel99软件编辑的原理电路图，希望对各位有助于电路图的学习和开发-The use of the principle of circuit protel99 software editor, in the hope you will help the study and development of circuit

压力传感器程序 包括UART GPRS SMS PCF8563-Press Sensor Code based at MSP430

Proteus仿真实例，在Proteus下仿真按键，非常不错，值得下载。-Proteus simulation example, in Proteus Simulation button, very good, it is worth downloading.

上位机采用vb编程,实现与多台s7200的自由口通信.-Host computer using vb programming, with more than the freedom of the mouth communication s7200.

使用PROTEUS仿真的RS232串行通信口,可在串口助手输入,激活7段数码管显示相应的数字-PROTEUS simulation using RS232 serial communication port, serial port assistant in the input, activation of 7 digital tube display the corresponding figure