4x4键盘的程序，新思路，希望能对大家有所帮助。

单片机控制的步进电机系统，包含keil51仿真和DXP原理图。-Single-chip stepper motor control system, including simulation and keil51 schematic DXP.

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

在AVR上实现USB的功能，是模拟出的USB-In the AVR to achieve USB functionality of USB is to simulate the

str710X系列32位ARM外部闪存的接口例子，闪存为Nand型Flash。-str710X series of 32-bit ARM external memory interface example, Nand-type flash memory for the Flash.

用STC89C51RC单片机控制的I2C总线高频头程序-STC89C51RC MCU with I2C Bus tuner program

串口通信 单片机程序 isp在线下载功能-Single-chip serial communication program isp online download function

AVR ATmega16 ds18b20 驱动程序，编译环境 ICCAVR6.31A 功能函数需要自己写移植代码-AVR ATmega16 ds18b20 driver, the compiler environment ICCAVR6.31A function needs its own code to write transplantation

收集了现行市面上路由器的默认密码，绝对具有参考价值-Collection of the current market, the router" s default password, absolutely with reference value

51事例原代码 事例多多 应该对初学者很有用-51 examples of the original code examples should be more useful for beginners

CMOS图像传感器OV7620在点钞机人民币号码识别记录系统中的应用-CMOS image sensor OV7620 yuan in cash registers record number recognition system