4×4 Matrix Keyboard Keypad Module with Plastic Keys for Arduino PIC AVR and Microcontroller Projects

Description

The 4×4 Matrix Keyboard Keypad Module is a durable 16-button input module designed for Arduino, PIC, AVR, STM32, Raspberry Pi, and other microcontroller-based projects. Unlike thin membrane keypads, this version features solid plastic push buttons mounted on a PCB, giving a more tactile and reliable feel for repeated use. The keypad contains 16 keys arranged in a 4-row by 4-column matrix. The standard layout includes: 1, 2, 3, A 4, 5, 6, B 7, 8, 9, C *, 0, #, D Because the keypad uses a matrix arrangement, it only requires 8 I/O pins from the microcontroller instead of 16 separate pins. The controller scans the rows and columns to determine which key is being pressed. This keypad module is e

Key Features

• 16-button keypad arranged in 4×4 matrix
• Durable plastic push buttons with tactile feel
• Requires only 8 microcontroller pins
• PCB-mounted design for easy installation
• Compatible with Arduino, PIC, AVR, STM32, ESP32, Raspberry Pi, and PLC systems
• Suitable for password entry, menu navigation, and control panels
• More durable and easier to press than membrane keypads
• Standard 8-pin interface connection
• Low power consumption
• Can be mounted in enclosures or front panels
• Ideal for industrial, security, and DIY electronics projects

Specifications