4x4 Matrix Keypad — 16‑Key Input Module for MCU

This Matrix Keypad 4 X 4 has 16 buttons, arranged in a telephone-line 3x4 grid with a column of 4 characters (A, B, C, and D). The keys are connected into a matrix, hence only 8 microcontroller pins (4-columns and 4-rows) are required to scan the pad. 

This 16-button keypad provides a useful human interface component for microcontroller projects. Convenient adhesive backing provides a simple way to mount the keypad in a variety of applications.

Features:

• 5 pins 2.54mm pitch connector, 4x 4type 16 keys.
• Ultra-thin design & adhesive backing provides easy integration to any project.
• This allows a microcontroller to ‘scan’ the 8 output pins to see which of the 16 buttons is being pressed.
• Excellent price-performance ratio.
• Easy communication with any microcontroller.
• The sticker can peel off for adhesive mounting.
• Used widely in industrial and home electronic equipment, instrument, etc.

Application:

• Arduino projects
• Security systems.
• Menu selection.
• Data entry for embedded systems.

Package Content:

1 x 16 Keys 4x4 Matrix - Membrane Type Keypad