8051单片机上4*4矩阵键盘的扫描方式2

用SD模式读SD卡的代码,写功能尚未实现,希望能给您一点帮助!-SD mode with SD card code reading and writing function has not yet been achieved, I hope to give you a little help!

w77e58 双串口 液晶显示源程序 c语言编写-w77e58 dual serial LCD source language c

多功能遥控小车的软硬件设计程序，包括使小车前进、后退、左转弯、右转弯、左滚动、右滚动的基本指令，以及完整程序清单。-Multi-function remote control car of the hardware and software design process, including the car forward, backward, left turn, right turn, left scroll, right scroll the basic commands, as well as the complete list of procedures.

BTF020实验程序-1 btf020开发板自带-Experimental procedures BTF020 development board comes with-1 btf020

AT29C040在单片机中的应用不仅能使用户快速地实现所需功能，而且电擦除的方式为程序和数据的存储和更新提供了方便，随着闪速存储器器件朝着容量越来越大、工作电压越来越低、支持共同的接口标准的方向发展，闪速存储器硬件接口和软件设计将越来越容易。 -AT29C040 in MCU that the application enables users to quickly achieve the required functions, but also-- in the form of erasure and data storage and update provides a convenient, as Flash memory devices towards increasing capacity, low voltage increasingly support a common interface standard direction, Flash memory interface hardware and software design will become increasingly vulnerable.

基于C51开发的 LCD+视频+代码+超强功能+电路图.-C51-based development LCD+ Video+ Code+ Superacid functional+ Circuit.

飞思卡尔单片机用PDIUSBD12和电脑通信，包括通用驱动，周立功的easyd12.dll和自写的VB测试程序控制B口上的两个小灯 用I/O口模拟总线和PDIUSBD12数据交换-frescale Microcontroller with PDIUSBD12 and computer communications, including general-purpose-driven, ZLG easyd12.dll and self-written by the VB test program control port B on the two small lamps with I/O port analog bus and PDIUSBD12 data exchange

avr入门用的 有protus仿真图 -avr entry has protus simulation used in Figure

ZLG7290B 是广州周立功单片机发展有限公司自行设计的数码管显示驱动及键盘扫描 管理芯片。能够直接驱动8 位共阴式数码管（或64 只独立的LED），同时还可以扫描管理 多达64 只按键。其中有8 只按键还可以作为功能键使用，就像电脑键盘上的Ctrl、Shift、 Alt 键一样。另外ZLG7290B 内部还设置有连击计数器，能够使某键按下后不松手而连续有 效。采用I2C 总线方式，与微控制器的接口仅需两根信号线。该芯片为工业级芯片，抗干扰 能力强，在工业测控中已有大量应用。-Canton weeks ZLG7290B is Ligong Singlechip Development Co., Ltd. to design the digital tube display driver and the keyboard scan management chip. Can directly drive a total of 8 vaginal digital tube (or 64 independent LED), at the same time management can also scan up to 64 keys. Which has 8 buttons can also be used as function keys, like the computer keyboard on the Ctrl, Shift, Alt keys like. Another internal ZLG7290B batter has also set up counters, can press a button and a row after不松手effective. Using I2C bus mode microcontroller interface with only two signal lines. The chip-on-chip for industry, anti-interference ability, in the industrial measurement and control has been a large number of applications.

LPC2132的液晶显示日历（RTC） 带按键修改-The LPC2132 LCD calendar (RTC) with key modifications