mp3 player software, the use of T6280 processor chip.

包含无线收发模块 NREF905的所有功能库函数 本库函数与外部函数接口简单易用-Wireless transceiver module includes all the features NREF905 library function of the library function and the external function interface easy to use

msp430F149 UART模块程序，很好用-msp430F149 UART module procedures, good use

LCD12864直接写屏驱动程序，12864LCD直接写屏，省去显示缓冲区，-LCD12864 written directly screen drivers, 12864LCD written directly screen, eliminating display buffer,

20ma的电流环通信回路仍应用于一些远程通信的场合，本文为其实现过程。-20ma current loop

功能描述： 利用AT89S51单片机的T0、T1的定时计数器功能，来完成对输入的信号进行 频率计数，计数的频率结果通过8位动态数码管显示出来。要求能够对2－40KHZ 的信号频率进行准确计数，计数误差不超过2/1-Functional Description: Using AT89S51 MCU T0, T1 timing counter function, to complete the input signal frequency counting, counting the frequency of 8 resulted in the adoption of dynamic digital tube display. Request to the 2-40KHZ signal frequency accurately count, counting error of less than 2/1

Atmel单片机的原理图啊，需要的快下 啊，免费的，别人的-Atmel MCU Schematic ah, ah, under the need for fast, free, and others

本文详细介绍了4×4矩阵式键盘识别技术，内含详细的电路图和C51源代码。-This paper describes a 4 × 4 matrix keyboard recognition technology, and contains detailed schematics and source code C51.

C51单片机通过红外通信实现PC键盘的无线通信 读取与显示具体细节请参考源程序将时钟线接入外部中断数据线接入普通I/O输入输出口-C51 microcontroller through infrared communications PC wireless keyboard and display read details please refer to the source clock line access external interrupt data lines access I/O input and output mouth

PADS2005 WORK IN LAYOUT PCB -PADS2005 WORK IN LAYOUT PCB