13L_01

双馈风机低电压穿越保护,jiyu qiaobang dianlu ( U53CC u9988 u98CE u673A u4F4E u7535 u538B u7A7F u8D8A u4FDD u62A4)

单片机最小系统在Protues仿真软件中实现仿真(single-chip microcomputer minimum system)

学4年来做过的竞赛以及老师的科研项目所积累下来的c51源代码，一共有40(4 years of study done as well as the Teacher of the competition accumulated research c51 source code, a total of 40)

利用AT89C51单片机的定时，定时计数器T0秒，秒计数的时候，第二代，再加上1秒计数，计数到60秒，自动从0开始。单片机12MHz晶振频率(Using AT89C51 single-chip timing, timing counter T0 seconds, seconds count as a time when the second generation, plus 1 seconds count, count to 60 seconds, automatically the beginning of 0. Crystal frequency chip 12MHZ)

一款基于SED1335的液晶驱动程序，用C编写，适合初学者借鉴！(One based on the SED1335 LCD driver, written in C, suitable for beginners learn!)

主要介绍串联稳压电源原理及主要的应用电路。(Introduces the principle and the main power supply series application circuit)

说明：  实用教程，单片机编程框架。很详细。初学者可以看看(Practical tutorial, SCM programming framework. Very detailed. Beginners can take a look at it.)

本文介绍一种利用单片机本身所提供的串行通讯口，采用自定义串行通信协议，加上总线驱动器如MAX481、MAX483、MAX485、MAX487等组合成简单的RS－485通讯网络，完成单片机间的多机通讯。(This article describes a serial communication port provided by the microcontroller itself, the custom serial communication protocols, coupled with the bus driver, such as the MAX481, MAX483, MAX485, MAX487, combined into a simple RS-485 communication network, complete single-chip between themulti-machine communication. )

非常实用的STC15W4K32S4小程序，采集32个AD数据进行求平均值，LCD12864显示AD采集程序(The very practical STC15W4K32S4 program, which collects 32 AD data for the average, LCD12864 shows the AD collection program )

51单片机新型按键扫描，不用10ms延时消抖，实时性大大提高。每个按键有长按短按功能，采用结构体对象化编程，增加按键极度方便。(The new key scan does not use 10ms delay to eliminate jitter, and the real-time performance is greatly improved. Each button has a long press, a short press function, the use of structured object programming, increasing the key, extremely convenient.)