Data Sheet

UCTRONICS Ultimate Starter Leaning Kit for Raspberry Pi #K0064
91 www.uctronics.com
8.13 Project 13: Matrix Keyboard
8.13.1 Overview
In this lesson, we will learn how to use a matrix keyboard.
8.13.2 Requirement
 Raspberry Pi ×1
 4x4 Matrix Keyboard×1
 Several Jumper wires
8.13.3 Principle
1. What
’
s 4x4 matrix keyboard ?
Please refer to chapter 3.10 4x4 Matrix Array 16 Key Keyboard
In order to save the resources of the microcontroller port, we usually connect the buttons in
a matrix in an actual project.
The following is the schematics of 4x4 matrix keyboard: