EnGeniusLab Introduce the compact 4x4 Keypad Matrix Module. In the application system of microcontroller, keyboard is essential in man-machine dialogue. When you are short of a button, you can connect one to the I/O port of the controller; but when you need a lot of buttons with limited I/O port resources, this 4*4 Matrix Keypad is no doubt your best choice. 4*4 matrix keypad is the most applied keypad form. The key layout is in matrix form, so with only eight I/O ports, we can identify 16 buttons, saving lots of I/O port resources.

Special Feature:-
• 4*4 matrix keypad
• Eight I/O ports, can identify 16 buttons.
• Material: FR4

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