用AT89S51单片机实现LCD1602显示数字时钟功能，通过按键能调节时分秒、年月日星期。Keil C51开发环境...

学习例程，共有100例，测试成功，在此上传工大家学习提高-Learning routines, a total of 100 cases, testing the success of workers in this upload them to learn to improve

51单片机P2口接4*4键盘的行线和列线；红灯亮时进行频率输入；绿灯亮时进行占空比输入；频率值暂定在100到60KHZ之间；输入频率和占空比时要输够六位整数，不够的在前面补0；占空比以百比数（0-100）形式存在。-51 Singlechip P2 mouth then 4* 4 keyboard line and column line red light when the frequency of input green when the input duty cycle frequency value is tentatively scheduled for between 100 to 60KHZ input frequency and duty than enough to lose six integers, not enough to fill in front of 0 duty cycle than a few hundred (0-100) form.

SHT71数字温湿度传感器的AVR单片机驱动程序-SHT71 digital temperature and humidity sensor AVR Single Chip Driver

单片机扩展是单片机应用的重要部分，文档主要介绍单片机的片外扩展。-extantion of msc51

基于AT89S51单片机和步进电机的国旗升降系统，带语音录放功能。汇编语言编写。-AT89S51-based single-chip stepper motor of the national flag and take-off and landing system, with voice recording function. Compiled languages.

经典的DSP的C程序和汇编程序, 非常好!-Classic DSP-C procedures and compilation of procedures, very good!

一个25045看门狗读写程序，可以当EEPROM用哦！-a watchdog 25,045 readers procedures, EEPROM can be used when Oh!

此程序实现了msp430在段位式显示器的显示，也包括一些驱动程序，希望给初学者有所帮助-This program implements msp430 display in the Dan-style display, but also including some drivers, hoping to be helpful for beginners ... ...

低成本m48+热敏电阻做多路温度报警装置显示和音乐！

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.