Lesson 67: Controlling an 8-Channel Relay with a Keypad Using Arduino

Build a Simple Electronic Lock with Keypad and LCD Using Arduino

In this tutorial, you’ll learn how to create an electronic lock system using a 4x3 keypad, an I2C LC...

How to Use a 5x4 20-Key Keypad with Arduino to Detect Strings

Using a keypad with keys containing more than one character is challenging. I have written code to r...

Controlling an 8-channel relay with a 4x3 keypad

This Arduino code is to control eight AC or eight DC loads connected to an eight-channel relay with ...

4x3 Keypad for Arduino with Code

On this page, you will find the Arduino code and library for a 4x3 keypad.

Arduino Code and Video: 4x4 Matrix Black Keypad

This video shows you how to use a 4x4 black keypad for Arduino. Related Code and Videos 1-4 Keys ...

Arduino Code and Video for a Four-Key Keypad

This video shows you how to use a 4-key keypad for Arduino. Related Code and Videos 1-4 Keys Keypa...

E029 How to use 4x4 Soft Keypad with Arduino

🔢 Interfacing a 4x4 Matrix Keypad with ArduinoThis tutorial demonstrates how to connect and use a 4x...

1602 LCD Keypad Shield: Basic Code

This video shows you how to use the 1602 LCD Keypad Shield Basic Code LCD4Bit_mod (GitHub) LCD160...