Membrane 4X4 Matrix Keypad + Extras 1 Channel Connector Type: 10 Pin (2

Connector Type: 10 Pin (2 x 5) Female to Female IDC Connector

and over-current protection

Max current: 180mA (all LEDs on)

5 μs output rise time in response to step input current

With the help of this Joystick Module

Membrane 4X4 Matrix Keypad + Extras 1 Channel Connector Type: 10 Pin (2This 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. 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