4×4 16 Key Membrane Switch Keypad

Punch in your secret key into this numeric matrix keypad. 4x4 Matrix Keypad - Membrane type keypad has 16 buttons, arranged in a 4x4 grid. It's made of a thin, flexible membrane material with an adhesive backing (just remove the paper) so you can attach it to nearly anything. The keys are connected into a matrix, so you only need 8 micro controller pins (4-columns and 4-rows) to scan through the pad.

Features:

• Ultra-thin design & adhesive backing provides easy integration to any project
• Excellent price-performance ratio
• Easy communication with any micro controller
• Used widely in industrial and home electronic equipment, instrument, etc.
• Flexible
• Can be attached on any surface
• Only 8 micro-controller pins are needed to access 16 buttons

Specifications:

Package Includes:

• 1 x 4x4 Switch 16 Keypad Keyboard for Arduino