2×2 Matrix 4-bit Micro Switch Push Button Keyboard Module

This product uses a high quality PCB board and is small in size, saving space and easy to use. It is the best choice for the expansion of the keyboard.

2×2 Matrix Keyboard 4-bit Keyboard Module consists of Microswitch buttons. It has 4 keys in total. The module is already equipped with soldered pin-headers. This can be used as the perfect choice for the expansion of the keyboard of the single-chip microcomputer.

It is more convenient to increase the number of keyboard keys. The module has four holes 3mm (M3) holes for mounting.

• • High-quality PCB board: PCB circuit design is reasonable and beautiful, the line is even and tidy, and the silk screen is clear and clean.
  • Professional materials: The products adopt all-industry-grade components, and the long-time working voltage has no drift.
  • Easy to operate: The product connection has a clear function mark and is easy to operate.
  • Good practicability: This product can be used as the perfect choice for the expansion of the keyboard of the single-chip microcomputer. It is more convenient to increase the number of keyboard keys.
  • Easy to carry: This product has a portable size so it is very easy to carry.
  • The product connection has a clear function mark and is easy to operate.

Package Includes:

• • 1 X Micro Switch 2*2 Matrix Keyboard 4-Bit Independent Button Expansion Keyboard Keypad