Velleman VMA300: 3 x 4 Matrix Keypad for Arduino

Features

A keypad is a simple method of entering user input into your project.

Specifications

• dimensions: 2.76" x 3.03" x 0.04" (7 x 7.7 x 0.1 cm)
• connection : 3 col - 4 row, 7 pin connection
• cable length: 3.54" (9 cm)
• weight: 0.22 oz. (6.25 g)
• Library : keypad.h