Arduino 4x4 Matrix Keypad

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

• Arduino Board click
• 4X4 Matrix Keypad click
• 220Ohms Resistance
• Led
• Bread Board click
• Dupont wire click

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

Just Plug Your USB and Upload The Sketch

• 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 .

Just Press The Key And See How It's Works

It's Kinda Cool

Click Here to See The Video