Introduction: Arduino 4x4 Matrix Keypad

About: Hi, I'm Steve! I'm a creative mind with a knack for technical skills—I can build just about anything you can dream up! From innovative projects to captivating designs, I bring ideas to life with passion and pr…

Hey! everyone My name is Steve 19 year old from India .

Today i'm going to show you How to Connect 4x4 Matrix Keypad with Arduino .

It's Just Amazing

You Can Do Several Work with This

Click Here to See The Video

Step 1: Stuff You Need

Step 2: How to Connect

Arduino to 4x4 Matrix Keypad

D2 - Pin 1 
D3 - Pin 2
D4 - Pin 3 
D5 - Pin 4
D6 - Pin 5
D7 - Pin 6 
D8 - Pin 7
D9 - Pin 8


Arduino to Led With Resistance in Series

D10 - Led 1
D11 - Led 2
D12 - Led 3
D13 - Led 4


Step 3: Upload the Sketch

Just Plug Your USB and Upload The Sketch


Attachments

Step 4: Function

  • Press 1 Led 1 Goes High
  • Press 4 Led 1 Goes Low
  • Press 2 Led 2 Goes High
  • Press 5 Led 2 Goes Low
  • Press 3 Led 3 Goes High
  • Press 6 Led 3 Goes Low
  • Press A Led 4 Goes High
  • Press B Led 4 Goes Low
  • Press # Led 1 , Led 2 , Led 3 , Led 4 Goes High
  • Press * Led 1 , Led 2 , Led 3 , Led 4 Goes Low

You Can Just Change The code little bit to Change The Function .

Step 5: Operation

Just Press The Key And See How It's Works

It's Kinda Cool

Click Here to See The Video