MSP430F149 LT

读卡器SIM卡SIMcard读写模块源代码-Reader SIM card SIMcard R/W Module source code

单片机简易频率计。包含有Proteus仿真程序-Simple single-chip frequency counter. Proteus simulation program contains

用过采样和求均值技术提高模数转换器的分辨率.pdf-----针对目前单片机内嵌的模／数转换器的分辨率太低，而外接高分辨率成本又太高的情况，提出了用“过采样和求均值”的技术来使在有用的测量频带内的信噪比得到改善，从而提高测量的分辨. 率。并利用 60 - 7 0 /对其结论进行仿真，且在单片机上予以实现，结果表明测量分辨率明显提高。-Sampling and averaging techniques used to improve the resolution of ADC. Pdf----- targeted at the embedded microcontroller A/D converter resolution is too low, while the external high-resolution costs are too high situation, put forward with " Oversampling and Averaging" technology to make useful measurements in the frequency band signal to noise ratio to be improved, thereby enhancing the measurement resolution. rate. And a 60- 7 0/simulation of its conclusions, and in the SCM to be achieved, results show that the measurement resolution has improved significantly.

2片显示驱动芯片HT1622的C51底层程序-two display driver chip HT1622 the bottom procedures C51

单片机 Keil＋proteus 并行口设计数字键盘实验 要求：掌握动态显示、动态扫描键盘的工作原理及硬、软件的设计、调试方法 掌握80C51接口硬件电路设计方法及软件编程方法 了解80C51外部中断的使用和编程方法 实验题目：并行口实现数字0~9、A~F、L、U、P、n总共20个键盘，将按键的结果用7段数码管显示出来。-Parallel Port numeric keypad test requirements: master the dynamic display, dynamic scan the keyboard works and the hardware and software design, debugging the means to acquire 80C51 interface hardware circuit design methods and software programming approach to understanding the 80C51 external interrupts use and programming methods Experimental subjects: parallel port for digital 0 ~ 9, A ~ F, L, U, P, n total of 20 keyboard, the result will be keys to use 7-segment digital tube display.

这是教你怎么利用单片机进行音乐的播放程序，非常好用-This is to teach you how to use microcontroller to the music player is very easy to use

一种基于新型时钟芯片的时钟设计方法.时间稳定准确.-a new clock on the clock chip design method. Time is stable and accurate.

当你进入线路板（PCB）这个行业后，首要面对的就要了解行业术语， 为此特别整理了包括大陆，台湾，香港等多位行业专家编写，修定， 再修定的PCB行业方方面面的术语和词汇。将网上流传的多种版本进行 了修正、统一和分类，更合理的介绍了线路板（PCB）专业术语。方便 大家查阅。-When you enter the circuit board (PCB) in the industry, the primary face and need to know about the industry jargon, for this special finishing, including mainland China, Taiwan, Hong Kong, etc. to prepare a number of industry experts, the revised and then revised all aspects of PCB industry terminology and vocabulary. Will be a variety of popular online version of the amendment, unity and classification, a more reasonable introduction PCB (PCB) professional terminology. Convenient access to everyone.

用AVR单片机实现脉冲采集源代码-Completed Acquisition pulse source code

医疗设备开发原代码5 医疗设备开发原代码5-Medical equipment, the development of the original code 5, the original code to develop medical equipment 5