4×4 Matrix 16 Push Button Keyboard Module

The 4×4 Matrix 16 Push Button Keyboard Module is a compact input solution used in embedded systems, Arduino projects, DIY electronics, and development boards. It consists of 16 tactile push buttons arranged in a 4-row × 4-column matrix, offering easy interfacing for user input and control.

This 4×4 Matrix Keyboard Module is designed with 8 output pins (R1 to R4 and L1 to L4) that allow microcontrollers to scan and detect pressed keys through simple row-column logic. The buttons are momentary switches, and the module features pre-soldered 90-degree pin headers for convenient board connection. Ideal for menus, numeric input, or system controls in your projects.

🔧 Key Features

• 4×4 matrix keypad with 16 push buttons
• 8-pin output (R1–R4 and L1–L4) for microcontroller interfacing
• Supports direct integration with Arduino, PIC, STM32, and similar platforms
• Momentary-type tactile switches for responsive input
• Clear PCB labeling and 90° rotated pin header pre-soldered
• 4 × M3 mounting holes for stable placement

📐 Technical Specifications

📌 Applications

• Input interface for Arduino and microcontrollers
• DIY electronics and robotics projects
• Custom menu systems and digital locks
• Home automation control panels
• Learning keypad scanning and matrix logic

💡 Why Choose This Product?

The 4×4 Matrix 16 Push Button Keyboard Module is a space-saving, reliable, and easy-to-interface input device for any digital electronics project. Its matrix layout reduces I/O pin usage while enabling up to 16 user inputs — ideal for project control panels and prototype UIs.

📦 Package Includes

• 1 × 4×4 Matrix 16 Push Button Keyboard Module