4 x 5 matrix keypad With LEDs

This matrix keypad is great for when you need quite a bit of buttons on your Arduino project. What makes this great is the fact that the top 16 buttons are all read from only 8 digital pins. While the four red buttons are read individually making them useful for a menu selection because they require less code to read them. Making them a little faster to read. As an added bonus there are 8 LEDs for a status indication for instance.

Matrix Keypad Specs:

• Name: 4 × 5 Matrix Micro Switch Keypad with 8 LEDs
• Power: 3.2 - 5V input
• Size: 61 x 51 x 12mm
• Buttons: 20 Buttons (4 separate switches)
• LED: 8 LEDs
• Includes: 4 standoffs and screws
• Mounting holes ( 55 / 45mm)
• Designed to be compatible with standard 2.54mm sockets