Description

This keyboard has 12 keys arranged according to the matrix of phones on a 3 X 4 grid. It is made with a thin, flexible membrane and with a support stickers on the back, simply remove the protective film to hang it anywhere. The keys are connected by a matrix, so just 7 pins of a microcontroller to use it (3 columns and 4 rows)

A 7 connector pins Male/Male is provided to easily use it on a breadboard.

Features

• Weight: 7.5 grams
• Dimensions: 70mm x 77mm x 1 mm (2.75 "x 3" x 0.035")
• Cable and connector length: 85mm
• Connector: 7 female pins on 2.54 mm pitch

Documentation

Arduino library: playground.arduino.cc/Code/Keypad