EnGeniusLab release the 4X4 switch Matrix Keypad because in the application system of microcontroller, keypad 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 x 4 Matrix Keypad is no doubt your best choice. 4 x 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.
- 4 X 4 matrix keypad
- Eight I/O ports, can identify 16 buttons
- Labeled with digit 1 to 16
- Size: (approx.) 49 x 39 x 8mm/ 1.93*1.54*0.3inch
- Material: FR4