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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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FPGA开发板的原理图很详细的,主要是ALTERA公司的CYCLONE,用protel画的,...
FPGA开发板的原理图很详细的,主要是ALTERA公司的CYCLONE,用protel画的,-FPGA development board schematic diagram of a very detailed, mainly ALTERA company CYCLONE, using Protel painting,
- 2022-02-06 00:18:39下载
- 积分:1
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关于arm开发的文档集合 有uCLinux ,usb应用,以及开发步骤等等,非常不错,...
关于arm开发的文档集合 有uCLinux ,usb应用,以及开发步骤等等,非常不错,-development arm of the document set a uCLinux, usb applications, and the development of steps and so on. very good.
- 2023-08-03 22:45:03下载
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U-Boot在44B0X开发板上的移植以及代码分析.asm-U-Boot board in the development of transplant and 44B0X code analysis. Asm
- 2023-03-14 13:55:03下载
- 积分:1
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智能电话系统的使用说明书
智能电话系统的使用说明书 --User manual for smart telephone system.
- 2022-02-05 02:08:47下载
- 积分:1
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用C++写的数控机床3轴上位机软件可解释G代码
资源描述本资料是一款数控CNC软件,C++语言写的可以解释数控G代码的软件。对初学者很有帮助。
- 2023-04-18 20:10:03下载
- 积分:1
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优秀的嵌入式linux系统GUI-Microwindow
优秀的嵌入式linux系统GUI-Microwindow-0.89;可以用来开发嵌入式GUI,同时具有很好的参考学习价值-outstanding Embedded Linux GUI-Microwindow- 0.89; Embedded can be used to develop GUI, and with good reference value learning
- 2023-01-19 22:10:04下载
- 积分:1
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慧净智能小车源码
资源描述慧净智能小车源码慧净智能小车源码慧净智能小车源码慧净智能小车源码慧净智能小车源码慧净智能小车源码慧净智能小车源码慧净智能小车源码慧净智能小车源码慧净智能小车源码慧净智能小车源码慧净智能小车源码慧净智能小车源码慧净智能小车源码慧净智能小车源码慧净智能小车源码慧净智能小车源码慧净智能小车源码慧净智能小车源码慧净智能小车源码慧净智能小车源码
- 2022-01-25 22:31:57下载
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nec软盘控制器驱动代码
nec软盘控制器驱动代码-nec code floppy disk drive controller
- 2022-12-12 18:30:03下载
- 积分:1
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数字温度计制作指导,是基于51单片机,用DS18B20制作的数字温度计,并可自行添加报警电路实现报警。包括电路图和程序以及详细的制作流程。...
数字温度计制作指导,是基于51单片机,用DS18B20制作的数字温度计,并可自行添加报警电路实现报警。包括电路图和程序以及详细的制作流程。-Digital thermometer production guidance is based on 51 microcontroller, digital thermometer with DS18B20 produced, and can add their own alarm circuit alarm. Including schematic and procedures, and detailed production process.
- 2022-08-03 02:58:08下载
- 积分:1