This is a translucent silicon rubber button pad with 16 buttons, the same found in our Simon Soldering Kits.
Button Pad 4x4 - LED Compatible, Sparkfun COM-07835
Question regarding 74HC164 74HC165 shift registers 8x8 Button Grid
Button Pad Hookup Guide Datasheet by SparkFun Electronics
Buy Big Push Button 10cm red - SparkFun COM-09181 Botland - Robotic Shop
Mini Button Pad Set - White - COM-08998 - SparkFun Electronics
I Tutorial su Wired Italia li fate voi - Generale - Arduino Forum
Description Documents This is a translucent silicon rubber button pad with 16 buttons originally inspired by the folks at monome.org. Each button has
Button Pad 4x4 - LED Compatible
Button Pad Hookup Guide - SparkFun Learn
I Tutorial su Wired Italia li fate voi - Generale - Arduino Forum
4×4 Button Pad Interacting Objects
I Tutorial su Wired Italia li fate voi - Generale - Arduino Forum
Buy Panel for 4x4 keyboard - compatible with LED Botland - Robotic Shop
Question regarding 74HC164 74HC165 shift registers 8x8 Button Grid