Beyond Arduino: 4 - Learn how to read a Matrix Keypad Premium class

Eduardo Corpeño, Electrical and Computer Engineer

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10 Videos (32m)
    • Introduction

      1:20
    • Matrix Keypads

      3:51
    • The Algorithm

      3:26
    • A Running Example

      2:53
    • The Good and the Bad

      6:59
    • Keypad hazards and safety - The Hazards

      3:42
    • Use Diodes

      2:36
    • Use Resistors

      2:15
    • Do Nothing

      1:11
    • An Example Resistive Matrix Keypad

      3:44

About This Class

In this course you'll learn how to read a matrix keypad (like those found in telephones) using your favorite microcontroller platform. It's a very interesting algorithm that scans through the rows and columns to find out which button was pressed.

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Eduardo Corpeño

Electrical and Computer Engineer

I'm an Electrical and Computer Engineer. I've been teaching Engineering at undergraduate and graduate levels for over 10 years. 

I love hardware, software and teaching.

Among the subjects in the classes I teach, my strongest are Electrical Circuit Theory, Electronic Devices, Digital Design, Computer Architecture, Microcontrollers, Assembly and C Programming for Embedded Applications, Hardware Description Language, Field Programmable Gate Arrays, Artificial Intelligence, Printed Circuit Board Design and Real Time Operating Systems.

Along with two of my finest colleagues, I created one of the first MOOCs in spanish, an introduction to the Raspberry Pi. We wrote a conference paper on the outcome of this very successful course. 

I'm currently taking the Online Master of Science in Computer Science at Georgia Tech and I'm loving every minute of it.