SKU: OT3688 Article number: NA357 EAN: 8720618827517
A keyboard matrix is a great way to add buttons without using up all your I/O pins.
This universal matrix keyboard features 4 buttons in a 2x2 matrix. One side of the board contains a pin header, allowing you to quickly and easily connect the keyboard to an Arduino module or another driver.
Technical specifications
Pitch: 2.54
4-pin connector
Dimensions: 20 mm x 25 mm
Example applications: Front panel of any device, combination lock, calculator, shortcuts for your computer.