-
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
-
PIC 18f based on the 485 series of the original procedure
基于PIC 18f 系列的485通讯原程序-PIC 18f based on the 485 series of the original procedure
- 2022-03-15 21:43:22下载
- 积分:1
-
This procedure to achieve with digital control to display sent by the computer s...
本程序实现用数码管来显示由电脑串口发来的数据。-This procedure to achieve with digital control to display sent by the computer serial port data.
- 2022-02-11 11:31:18下载
- 积分:1
-
Need to compile qtopia library. Which contains commonly used in embedded system...
编译qtopia需要的库。里面包含了在嵌入式系统开发常用的电子元器件封装
-Need to compile qtopia library. Which contains commonly used in embedded system development package of electronic components
- 2022-10-12 21:20:04下载
- 积分:1
-
jet sent SMS platform, LCM revealed sending and receiving numbers indicate the s...
座机短信发送平台,LCM显示发送和接受号码显示源程序。功能处理函数-jet sent SMS platform, LCM revealed sending and receiving numbers indicate the source. Function Functions
- 2022-07-17 21:58:42下载
- 积分:1
-
这是一个MSP430在IAR环境下开发的益而高点亮LCD的一个小程序...
asfasd f asdfasdfasdf asd-asfasdfasdf asdfasdfasdf asdfasdfasdfasd
- 2022-01-28 17:28:12下载
- 积分:1
-
Source code for topway tft
Source code for topway tft
- 2022-06-18 17:34:23下载
- 积分:1
-
嵌入式操作系统_C_OS_II的特点及应用
嵌入式操作系统_C_OS_II的特点及应用 -嵌入式操作系统_C_OS_II的特点及应用嵌入式操作系统_C_OS_II的特点及应用
- 2022-11-14 10:15:03下载
- 积分:1
-
Serial Experiments 3c2410 code can also be applied to projects.
3c2410的串口实验代码,还可以,可应用到工程上。-Serial Experiments 3c2410 code can also be applied to projects.
- 2022-02-15 10:12:44下载
- 积分:1
-
wdm格式的驱动例子代码,包括io端口的读写。是前面三个例子的升级。...
wdm格式的驱动例子代码,包括io端口的读写。是前面三个例子的升级。-wdm drivers format code examples, including io- port reader. Yes previous three examples upgrade.
- 2022-06-20 12:32:06下载
- 积分:1