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Raspberry Pi LED Blueprints

By : Agus Kurniawan
Book Image

Raspberry Pi LED Blueprints

By: Agus Kurniawan

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Raspberry Pi LED Blueprints
Agus Kurniawan
Sep, 2015 | 180 pages
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Table of Contents (14 chapters)
Raspberry Pi LED Blueprints
Raspberry Pi LED Blueprints
Credits
Credits
About the Author
About the Author
About the Reviewers
About the Reviewers
www.PacktPub.com
www.PacktPub.com
Preface
Preface
Free Chapter
1
Getting Started with LED Programming through Raspberry Pi GPIO
Getting Started with LED Programming through Raspberry Pi GPIO
Setting up Raspberry Pi
Introducing Raspberry Pi GPIO
Blinking LEDs
Turning an LED on/off using a push button
Changing color through an RGB LED
Summary
2
Make Your Own Countdown Timer
Make Your Own Countdown Timer
Introducing a 7-segment display
Introducing a shift register
Driving a 7-segment display using a shift register
Working with a 4-digit 7-segment display
Building a countdown timer
Summary
3
Make Your Own Digital Clock Display
Make Your Own Digital Clock Display
Introducing a 4-digit 7-segment display for a digital clock
Introducing an I2C OLED graphic display
Building a digital clock using an I2C OLED graphic display
Summary
4
LED Dot Matrix
LED Dot Matrix
Introducing LED dot matrix display (8 x 8 LEDs)
Introducing an LED dot matrix driver
Displaying a random number on the LED dot matrix display
Displaying a random character on the LED dot matrix display
Building a ball reflection game
Cascading LED dot matrix modules
Summary
5
Building Your Own Traffic Light Controller
Building Your Own Traffic Light Controller
Introducing a traffic light controller
Designing a traffic light controller
Controlling AC/DC lamps using channel relay modules
Expanding Raspberry Pi GPIO
Building a traffic light controller
Cascading traffic light controllers
Summary
6
Building Your Own Light Controller-based Bluetooth
Building Your Own Light Controller-based Bluetooth
Introducing Bluetooth
Working with Bluetooth using Raspberry Pi
Introducing iBeacon
Bluetooth programming on Android
Building a remote light controller-based Bluetooth
Summary
7
Making Your Own Controlled Lamps Through Internet Network
Making Your Own Controlled Lamps Through Internet Network
Connecting the Raspberry Pi to a network
Introducing Node.js
Controlling LEDs and lamps using Node.js
Building a simple web server using Node.js
Building RESTful using Node.js
Controlling LEDs through RESTful
Building a PhoneGap application for Android
Connecting PhoneGap Android to Raspberry Pi through RESTful
Summary
Index
Index

Chapter 4. LED Dot Matrix

An LED dot matrix display is a two-dimensional LED pattern array, used to represent characters, symbols, and images. This chapter will explore how to control an LED dot matrix display from Raspberry Pi. At the end of the chapter, we will cascade several LED dot matrix modules.

You will learn the following topics in this chapter:

  • Introducing LED dot matrix display (8 x 8 LEDs)

  • Displaying a random number in an LED dot matrix display

  • Displaying a random character in an LED dot matrix display

  • Building a ball reflection game

  • Cascading LED dot matrix modules

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