Large Button 4*4 Matrix Keypad for Arduino

Looking for a way to add multiple buttons to your microcontroller project without using up all your I/O ports? The SP0771 4*4 Matrix Keypad is just what you need! This handy keypad lets you manage 16 buttons with only eight I/O ports, making it perfect for projects where you need to save on resources.

Key Features:

• Efficient Design: The matrix layout enables the identification of 16 buttons with just eight I/O ports.
• Easy Integration: Connect module pins 1-8 to board digital pins 2-9 for seamless integration.
• User-Friendly: Sketch available to load through IDE