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This article describes how to use AD to identify the user s keyboard input metho...
本文介绍了如何用AD识别用户输入的键盘的方法，较之点阵识别有其不可替代的优势；因为如果用4*4的话须消耗8个I/O口，而如果系统有AD功能的话就可能轻松解决了。
单片机8051F330发给ARM然后发给电脑。
其原理就是利用电阻的分压，按键时产生不同的电压，再用中断快速读取电压；然后对其进行编码，通过串口软件EASYARM在个人电脑里显示；经实验观察，效果还可以。 -This article describes how to use AD to identify the user s keyboard input methods, compared with dot-matrix recognition has its irreplaceable advantages because if we use 4* 4, then to be consumed eight I/O port, and if the system function in AD, then on may be easily resolved. Singlechip 8051F330 distributed computer and then distributed to ARM. Its principle is to use the sub-ballast resistor, when keys have different voltage, and then quickly read voltage interruption then encode, through the serial port software EASYARM in the personal computer display by experimental observation, the effect can also be.
- 2022-05-25 22:40:40下载
- 积分：1
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Tinyos hello program source code in nesC
Tinyos hello program source code in nesC-Tinyos hello program source code in nesC
- 2023-07-20 11:00:07下载
- 积分：1
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The code has a lot on learning verilog HDL examples have help for beginners
该代码中有不少关于学习verilog HDL的例子,对初学者有帮助-The code has a lot on learning verilog HDL examples have help for beginners
- 2022-08-05 11:19:55下载
- 积分：1
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看门狗源看门狗源
watchdog source watchdog source
- 2023-05-02 10:15:03下载
- 积分：1
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基于8019的c8051f的tcpip源程序
基于8019的c8051f的tcpip源程序-c8051f source of TCPIP
- 2023-08-07 18:05:03下载
- 积分：1
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基于stm32超声波探高
资源描述基于stm32单片机的超声波测高，用的是定时器的输入捕获模式，Trig接单片机的PA4，Echo接的PA0,程序比较简单，可以自行更改IO口
- 2022-05-15 06:04:12下载
- 积分：1
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Outside the extended ram
外扩ram-Outside the extended ram
- 2023-07-03 12:50:03下载
- 积分：1
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Globus Toolkit 4编程指南
是关于网格计算中最通用的软件GLOBUS工具箱第4版的使用详解，对于开发网格应用具有很高的参考价值。...
Globus Toolkit 4编程指南
是关于网格计算中最通用的软件GLOBUS工具箱第4版的使用详解，对于开发网格应用具有很高的参考价值。-Programming Guide grid computing is on the most common software creatine U.S. Toolbox Release 4 IDE for the development of grid application with high reference value.
- 2022-04-01 01:00:47下载
- 积分：1
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PIC16F73做逆变器，包括原理图，C程序，及相关信息
PIC16f73做的逆变器，包括原理图，c程序，与相关资料-PIC16f73 done inverter, including schematics, c program, and related information
- 2022-09-26 06:10:03下载
- 积分：1
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Nucleus实时操作系统分析报告
Nucleus实时操作系统分析报告-analysis
- 2023-04-23 18:20:03下载
- 积分：1
