The 4×5 Matrix Keypad is a high-quality keypad with 20 keys arranged in a 4×5 matrix. This keypad is designed for a variety of applications including embedded systems, microcontroller projects, and digital circuits. It offers a simple interface for user input and is widely used in applications such as security systems, DIY electronics, and interactive projects.

Key Features:

20 keys arranged in a 4×5 matrix Durable and reliable design Easy to integrate with microcontrollers and other digital circuits Compact and lightweight Technical Specifications:

Keypad Layout: 4 rows and 5 columns Operating Voltage: 3.3V to 5V Dimensions: 75mm x 100mm Cable Length: 100mm Connector Type: Pin header (10 pins) Applications:

Embedded systems Microcontroller projects Digital input devices Security systems DIY electronics Interactive projects Usage:

Connect the Keypad: Connect the row and column pins of the keypad to the digital I/O pins of the microcontroller. Initialize the Pins: Set up the microcontroller pins as input or output as needed. Scanning the Keypad: Implement a scanning routine to detect key presses by checking the state of each row and column. Read Key Presses: Identify which key is pressed based on the row and column detected during scanning. Use in Application: Use the detected key press for the desired function in your application, such as entering a password or navigating a menu. Caution:

Ensure proper connections to avoid short circuits. Handle the keypad with care to avoid damaging the keys.