4x4 Matrix 16 Key Membrane Switch Keypad Keyboard for Arduino/AVR/PIC/ARM 4*4 Matrix Keyboard for PIC ARM Product information This is a 4*4 Matrix Keyboard for your DIY Project. It is 100% brand new and high quality. Features: Connector: 8 pins ( Pitch 2.54mm ) Dimension:76.5mmx69mm Fit for Your DIY development board supporting 5 X 4*4 Matrix Keyboard https://elecena.pl/product/16395807/16-key-membrane-switch 2020-04-06 https://elecena.pl/product/16395807/16-key-membrane-switch 2020-09-01 https://elecena.pl/product/16395807/16-key-membrane-switch 2021-03-02 https://elecena.pl/product/16395807/16-key-membrane-switch 2025-07-09