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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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IDC idapro STi5518
- 2022-04-17 02:20:00下载
- 积分:1
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电子纸模组S3011CF1的单片机驱动程序源代码,GPIO模拟I2C接口
电子纸模组S3011CF1的单片机驱动程序源代码,GPIO模拟I2C接口。S3011CF1是EINK公司推出的一款断码式电子纸显示屏,具有3个8段数字和GB与百分比图形。
- 2022-07-21 09:37:15下载
- 积分:1
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Power management code based on linux2.6.10! apm power management mode! Very good...
电源管理代码 基于linux2.6.10!apm方式的电源管理!很好的资料!做arm平台使用-Power management code based on linux2.6.10! apm power management mode! Very good information! Do arm platform
- 2022-01-26 04:44:55下载
- 积分:1
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sttesttool.rar的标准testtool.rar驱动,附带st驱动说明文档
sttesttool.rar的标准testtool.rar驱动,附带st驱动说明文档-sttesttool.rar standard testtool.rar drive, incidental documentation st driver
- 2023-02-26 01:40:04下载
- 积分:1
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ARM7 LPC2114自已工作中编写的直流马达驱动源程序。
文件:
uart_motor.HEX
Uart_motor.mcp
LPC2294...
ARM7 LPC2114自已工作中编写的直流马达驱动源程序。
文件:
uart_motor.HEX
Uart_motor.mcp
LPC2294.h
等相关文件。-ARM7 LPC2114 own work, the preparation of DC motor drive source. File: uart_motor.HEXUart_motor.mcpLPC2294.h and other relevant documents.
- 2022-01-25 20:27:26下载
- 积分:1
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一些数
a=b+c;
- 2022-04-12 02:33:46下载
- 积分:1
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关于52单片机串口通讯的软件仿真,包含Proteus布局图
关于52单片机串口通讯的软件仿真,包含Proteus布局图-About 52 microcontroller serial communication software simulation, including Proteus layout
- 2022-03-13 16:31:58下载
- 积分:1
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RDA SINGLE CHIP FOR BLUETOOTH datasheet v1.42EN
RDA SINGLE CHIP FOR BLUETOOTH datasheet v1.42EN
- 2022-08-19 12:26:28下载
- 积分:1
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用于自动喷胶机的PID算法,基于热熔胶的加热温度控制,过冲不高过2度,精度有0。5度...
用于自动喷胶机的PID算法,基于热熔胶的加热温度控制,过冲不高过2度,精度有0。5度-For automatic glue machine PID algorithm, based on hot melt adhesive heating temperature control, overshoot does not exceed 2 degrees, the precision of 0.5 degrees
- 2022-08-08 14:08:51下载
- 积分:1