- Product Description
1. A 4x4 matrix keypad module with up to 16 keys.
2. PCB size: 5.2 x 7.35 cm.
3. Convenient and easy to use.
4. Suitable to apply in projects for MCU expansion board control.
5. Standard double-sided printed circuit board, 3-mm holes at two corners for easy fixing.
- 1 * 4x4 keypad module (wire not included)
For more information, refer to http://wiki.sunfounder.cc/index.php?title=4X4_Matrix_Keypad_Module#Experimental_Principle.