Description: it is a 8051 based security system.
on preesing a particular code you can lock or unlock any device.
8051 is interfaced through 2*16 lcd and 3*4 keypad. Platform: |
Size: 48128 |
Author:devesh |
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Description: 这里有一个单片机密码锁的程序，具体功能是
这个范例说明如何使用8051， LCD显示器和4ⅹ4的小键盘，制作一个密
码锁。PORT 1 连接到LCD显示器的数据线。PORT 3 的P3.3,P3.4和P3.5分别
连接到LCD显示器的控制线。PORT 2连接到4ⅹ4的小键盘，可以输入密码。
执行修改密码或是时间的程序时，首先让LCD显示器显示出时间和日期。
当用户按下4ⅹ4小键盘的按钮 A 时，可以输入密码。如果密码正确时，就
会让 P3.6的 LED 闪烁，表示打开锁。如果密码不正确时，LCD显示器就会
显示出
"PASSWORD WRONG"。
当用户按下4ⅹ4小键盘的按钮 B时，可以修改时间。
当用户按下4ⅹ4小键盘的按钮 C时，可以修改密码。*/
编译环境 Keil uVision3，系统 winxp3-There is a single chip program lock, the specific function is
This example illustrates how to use the 8051, LCD monitor and 4 ⅹ 4 small keyboard, making a
Close
Code lock. PORT 1 LCD monitor connected to the data lines. PORT 3 of the P3.3, P3.4 and P3.5 points
Do not
LCD monitor connected to the control line. PORT 2 is connected to 4 ⅹ 4 keypad, you can enter the password.
Implementation of the procedures or time to change the password, the first LCD monitors to display the time and date.
4 ⅹ 4 when the user presses the button A small keyboard, you can enter the password. If the password is correct, it
The LED will flash P3.6, that opens the lock. If the password is not correct, LCD display will
Show
"PASSWORD WRONG".
When the user presses the 4 ⅹ 4 button keypad, B, can be modified.
4 ⅹ 4 when the user presses the button on the keypad C, you can change your password.*/ Platform: |
Size: 88064 |
Author:林羽 |
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Description: 微处理器实验代码，包括很多内容，可供大家参考-The purpose of these experiments is to familiarise you with the 8051 microcontroller family. With this intention,
you will use the MCS-51 development board developed at BUPT with the READS51 software. In this lab you
will use relative assembly techniques to build programs using reusable code modules in order to control the
display and keypad on the lab development board. Platform: |
Size: 10240 |
Author:汤政 |
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Description: 16x2 lcd with alphanumeric keypad code
Hardware requirements
4x4 keypad
16x2 lcd
One 80s51 0r 80c51
Oscillator to provide necessary clock frequency to micro controller.
A potentiometer for lcd contrast.
First of all never forget to include the #include<reg51.h> header file in every 8051 project because this is the file that contains all the necessary linking and debugging code in it.
-16x2 lcd with alphanumeric keypad code
Hardware requirements
4x4 keypad
16x2 lcd
One 80s51 0r 80c51
Oscillator to provide necessary clock frequency to micro controller.
A potentiometer for lcd contrast.
First of all never forget to include the #include<reg51.h> header file in every 8051 project because this is the file that contains all the necessary linking and debugging code in it.
Platform: |
Size: 111616 |
Author:tamrat |
Hits:
Description: 16x2 lcd with alphanumeric keypad code
Hardware requirements
4x4 keypad
16x2 lcd
One 80s51 0r 80c51
Oscillator to provide necessary clock frequency to micro controller.
A potentiometer for lcd contrast.
First of all never forget to include the #include<reg51.h> header file in every 8051 project because this is the file that contains all the necessary linking and debugging code in it.
-16x2 lcd with alphanumeric keypad code
Hardware requirements
4x4 keypad
16x2 lcd
One 80s51 0r 80c51
Oscillator to provide necessary clock frequency to micro controller.
A potentiometer for lcd contrast.
First of all never forget to include the #include<reg51.h> header file in every 8051 project because this is the file that contains all the necessary linking and debugging code in it.
Platform: |
Size: 14336 |
Author:tamrat |
Hits:
Description: 16x2 lcd with alphanumeric keypad code
Hardware requirements
4x4 keypad
16x2 lcd
One 80s51 0r 80c51
Oscillator to provide necessary clock frequency to micro controller.
A potentiometer for lcd contrast.
First of all never forget to include the #include<reg51.h> header file in every 8051 project because this is the file that contains all the necessary linking and debugging code in it.
-16x2 lcd with alphanumeric keypad code
Hardware requirements
4x4 keypad
16x2 lcd
One 80s51 0r 80c51
Oscillator to provide necessary clock frequency to micro controller.
A potentiometer for lcd contrast.
First of all never forget to include the #include<reg51.h> header file in every 8051 project because this is the file that contains all the necessary linking and debugging code in it.
Platform: |
Size: 14336 |
Author:tamrat |
Hits:
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