mega8，100Hz波形发生，定时中断点亮LED

单片机开发板的电路图 包含 PCB。。。。U1=89C51 U2=555 U3=MAX232 U4=24C01 U6＝X25045看门狗 X1=共阳数码管 -Single-chip development board contains the circuit PCB. . . . U1 = 89C51U2 = 555U3 = MAX232U4 = 24C01U6 = X25045 watchdog X1 = total yang digital tube

1、arm7芯片2138驱动大液晶 2、ym320240的液晶驱动 3、动态等待图标的显示 4、各种字符的显示。 -1, arm7 chip liquid crystal 2138 driver 2, ym320240 LCD Driver 3, dynamic wait icon display 4, a variety of characters in the display.

单片机实现通信工程实践Ｃ语言代码，欢迎有兴趣的朋友下载，因为是自己收集的代码没有仔细研究，希望对大家有用处！-MCU Communication Engineering Practice C language code, are welcome to download friends, because it is his collection of code without careful study, we hope to be useful!

利用单片机加控制直流电机，利用P1口，编制程序输出一串脉冲，经放大后驱动小电机，改变输出脉冲的电平及持续时间，达到使电机正转、反转、加速、减速。停转之目的。 可以通过74LS244输入开关量数据来控制小直流电机的转动，实现正转四种转速，反转四种转速及停转。 -The use of SCM in controlling the DC motor

51单片机,精确延时小函数.提供500ms,200ms,10ms,1s的精确延时,直接调用即可.-51 microcontroller, small precision delay function. For 500ms, 200ms, 10ms, the precise 1s delay, can be called directly.

该源码采用标准c编写，使用SPI方式访问SD卡。-c prepared using standard, the use of SPI mode visit the SD Card.

MSP430单片机的开发板原理图，用于初期对430单片机的学习，也可自己制作开发板-MSP430 MCU development board schematic diagram for the early stage of 430 single-chip learning, can also produce their own development board

ch451的使用，遇到问题可以参考 做spi驱动-ch451 use problems can refer to make spi driver

单片机 音符---音频转换程序 附带 十六进制 音节标语-SCM notes--- audio conversion fringe hexadecimal syllable slogan

读取韦根数据转换成RS232后传给上位机的程序-Wiegand reader into RS232 data to the host computer after the procedure