The 4*4 matrix keypad is usually used as an input in a project. It has 16 keys in total, with the same input values.
The 4*4 Matrix Keypad Module is a matrix non-encoded keypad consisting of 16 keys in parallel. The keys of each row and column are connected through the pins outside – pin Y1-Y4 as labelled beside control the rows, when X1-X4, the columns.
- 4 x 4 Matrix Keyboard
- 16 Buttons
- 1 * 4 x 4 16-Key Matrix Keypad Keyboard Module 16 Buttons