Product Name:

4x3 Matrix Keypad – Membrane/Mechanical Input Keypad

Product Description:

The 4x3 Matrix Keypad is a compact and reliable input device designed for microcontroller-based projects that require numeric or functional keypad entry. With 12 keys arranged in a 4-row × 3-column matrix, this keypad is perfect for entering passwords, numbers, commands, and menu selections in embedded systems.

It interfaces easily with Arduino, Raspberry Pi, ESP8266/ESP32, PIC, AVR, and ARM controllers, making it ideal for DIY electronics, automation projects, security systems, and educational use.

Key Features:

• 12 Keys (4x3 layout): Numeric + special function keys

• Operating Voltage: 3.3V–5V

• Easy Interface: Matrix-style wiring for efficient microcontroller input

• Durable & Long Life: High-quality switch contacts

• Compact Size: Easy to mount on prototypes and enclosures

• Types Available:

  • Membrane keypad

  • Mechanical keypad (depending on model)

• Fully Compatible With: Arduino, Raspberry Pi, ESP32, STM32, and more

Applications:

• Access control systems

• Password entry panels

• Home automation

• Industrial control panels

• Security locks

• DIY electronic projects

• Menu navigation for embedded systems

• Robotics control interfaces

Why Choose This Keypad?

The 4x3 Matrix Keypad is affordable, easy to use, and extremely reliable. It provides a simple way to add user input to any project, making it perfect for both beginners and professional developers.