Keypad Interface With 8051 and Displaying Keypad Numbers in 7 Segment

Introduction: Keypad Interface With 8051 and Displaying Keypad Numbers in 7 Segment

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In this tutorial I'm going to tell you about how we can interface keypad with 8051 and displaying keypad numbers in 7 segment display

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Step 1: Software Used

As we are showing proteus simulation so FOR CODING AND SIMULATION YOU REQUIRED:

1 Keil uvision: Their are lots of product from keil. so you will be required c51 compiler. You can download that software from here

2 Proteus Software for simulation: This is the software to show simulation. You will get lot of information to download this software.

If you are doing it in hardware then you would require one software that is flash magic to upload the code in your hardware. Remember flash magic is developed by nxp. So you can not upload all 8051 family microcontroler through this software. So Philips based controller only you can upload.

Step 2: Components Used:

Here in our demo video we are using proteus simulation but definetly if you are doing it in your hardware you will be required these components for this project:

8051 Development board: So if you have this board it will be better so that you can easily upload the code by yourself.

Seven Segment Display: In this project we are using one Common Anode Display.

4*3 Keypad Matrix: Herewe are using 4*3 keypad matrix. So you can use 4*3 matrix or any other matrix like 4*4, no issue. For that a little more step we need to add in our code

USB to UART converter: This is 9 Pin D type male Connector For RS232 O/p Jumper Wires
Some Jumper Wires

Step 3: Circuit Diagram:

Step 4: Code and Video

The whole Project Description is given in above video

You can get the source code from our GitHub Link

If you have any doubt regarding this project feel free to comment us below. And if you want to learn more about embedded system you can visit our youtube channel

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Thanks & Regards,

Embedotronics Technologies

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    2 years ago

    Once you understand the total capable instruction set for this chip, it is wide open as to what you can program and do. Learning to write code for it is always interesting as well. Nice tutorial...