编辑音乐乐谱 通过单片机实现音乐编辑功能

89c52编写智能化开关电源设计，带A/D,D/A识别全数字开关电源程序。-89c52 prepare intelligent switching power supply design, with A/D, D/A to identify an all-digital switching power supply procedures.

步进电机的工作原理，实现正转及逆转的方法-The working principle of stepper motor to achieve positive change and reversal of the method

非接触式IC卡编程样例C2-non-contact IC card Programming Example C2

一个M1读卡器的驱动程序，基于51单片机-an M1 reader of the driver, based on 51 MCU

非接触式IC卡编程样例232-C3-non-contact IC card programming sample 232-C3

利用单片机的定时器定时，令十字路口的红绿灯交替点亮和熄灭，实现主支路路口的交通信号灯控制（尽可能保持主线的畅通，即在通常情况下，保持主线的放行，只有在支线到达时，才放行支线），同时采用LCD显示倒计时时间及当前灯的状态。-The use of MCU timer timing, so that the crossroads at the traffic lights turn out light and to achieve the main slip road junction traffic lights control (as far as possible the smooth flow of the main line, that is, under normal circumstances, to maintain the release of the main line, and only arrived at the branch only when the release branch), while using LCD display countdown time and the current lighting condition.

串口通讯经典使用程序,以前收集整理的东东,希望对大家有用!-Serial Communication Classic to use the program, previously collected Dongdong finishing the hope for all of us!

三菱16位单片机M306N0系列，A/D转换驱动源码。-Mitsubishi 16-bit microcontroller M306N0 series, A/D converter driver source.

本程序用于接收一般的红外线代码。很适合51单片机的新手学习。-This procedure is used to receive infrared codes in general. Very suitable for the novice to learn microcontroller 51.

HT1621 是一款128 个位元的LCD 控制器件，内部RAM 直接对应LCD 的显示单元。相应的软件使它适用于包括LCD 模块和显示子系统在内的多功能应用。主控制器与HT1621接口只需4 到5 根线。内置的省电模式极大的降低了功耗。本文介绍HT48R05A-1 单片机来控制HT1621，并介绍如何turn ON 及turn OFF LCD 所有位元。-HT1621 is a 128-bit LCD control device, the internal RAM directly correspond to the LCD display unit. So that it applies to the appropriate software, including LCD modules and display sub-systems, including multi-purpose applications. Master controller and the HT1621 interface only 4-5 lines. Built-in power-saving mode greatly reduce power consumption. This article describes the HT48R05A-1 microcomputer to control the HT1621, and describes how to turn ON and turn OFF LCD all the bits.