4. For the key to enter a password lock, assuming that reset after eight full

直流电机的闭环控制c51 原代码，编译通过。-Motor closed-loop control decoder source code, compile.

51单片机开发的双路冷气机自动切换报警控制器-51 MCU development of dual air-conditioning automatically switch alarm controller

１０种软件滤波方法　里面介绍了１０种软件滤波的编程思想-filtering software inside of 10 kinds of filtering software programming ideas

实验名称：看门狗实验 功能描述：使能系统看门狗。 如果将PA0连接到LED上观察到实验现象为LED灯闪烁。 如果连接到SPK上将会听到SPK间歇性鸣叫。 如果将watchdog_init() 注释掉或者将WDT_off() 前面的注释去掉则将看门狗禁止 此时连接到LED上观察到的现象为LED常亮 实验目的：熟悉看门狗的操作 实验说明：MCU--M16 外部7.3728M晶振 -AVR for Watchdog!

AT91SAM7S256开发板demo，已验证-AT91SAM7S256 development board demo, verified

这是控制变频器的西门子s7-200PLC程序-This is the control of Siemens frequency converter s7-200PLC procedures

温度传感DB18B20七段显示实验

AVR单片机中TWI(I2C)总线操作串行存储器24c02的C语言程序,如果要搞TWI串行总线的可以参考.程序总包括了单片机对24c02的写和读,用ICCAVR开发.-AVR MCU TWI (I2C) serial memory bus to operate 24C02 C-language procedure, if want to TWI Serial Bus can refer to. Procedures include single-chip microcomputer of the total 24C02 write and read, with the development of ICCAVR .

用8051控制DDS信号发生器，产生1HZ-10MHz的正弦波/三角波/方波-DDS with 8051 control signal generator, producing the 1HZ-10MHz sine/triangle/square wave

使用键盘上的上、下、左、右四个按键，可以分别控制led1,2,3,4, 每个LED 对应的Port 请参考“实验平台介绍”说明文档。要求按下 上面提到的四个按键中间的一个按键后，该按键对应的led 被点亮，持续1 秒钟以后led 熄 灭。-Use the keyboard on the upper and lower, left, and right buttons, can control led1, 2,3,4, each LED corresponding to the Port, please refer to " experiment on" documentation. Requirements of the four above-mentioned press the middle button of a button, the button that corresponds to being light led, continuous 1 second later led out.