Search icon CANCEL
Subscription
0
Cart icon
Your Cart (0 item)
Close icon
You have no products in your basket yet
Save more on your purchases now! discount-offer-chevron-icon
Savings automatically calculated. No voucher code required.
Arrow left icon
Explore Products
Best Sellers
New Releases
Books
Videos
Audiobooks
Learning Hub
Conferences
Free Learning
Arrow right icon
Arrow up icon
GO TO TOP
Arduino Development Cookbook

You're reading from   Arduino Development Cookbook Over 50 hands-on recipes to quickly build and understand Arduino projects, from the simplest to the most extraordinary

Arrow left icon
Product type Paperback
Published in Apr 2015
Publisher
ISBN-13 9781783982943
Length 246 pages
Edition 1st Edition
Tools
Concepts
Arrow right icon
Author (1):
Arrow left icon
Cornel M Amariei Cornel M Amariei
Author Profile Icon Cornel M Amariei
Cornel M Amariei
Arrow right icon
View More author details
Toc

Table of Contents (11) Chapters Close

Preface 1. Power on – Arduino Basics FREE CHAPTER 2. Blinking LEDs 3. Working with Buttons 4. Sensors 5. Motor Control 6. More Output Devices 7. Digital Communication with Arduino 8. Hacking A. Electronics – the Basics Index

LED bar graph

We all hate progress bars! They are always delaying us from doing something. But in the Arduino world they can be very handy. Here, we will see how to build one with LEDs. An LED bar graph is just a bunch of LEDs put together in a fancy case, but there are many uses for it. We can display the date from a sensor, show a critical condition, or make a funny light show with it.

Getting ready

We will need the following ingredients to execute this recipe:

  • An Arduino board connected to the computer via USB
  • A breadboard and jumper wires
  • An LED bar graph
  • Resistors between 220–1,000 ohm

How to do it…

Following are the steps to connect a 10-segment bar graph to the Arduino:

  1. Mount the LED bar graph onto the breadboard.
  2. If the bar graph is a common anode (+) configuration, connect the common anode (+) pin to the 5V port on the Arduino. If the bar graph is a common cathode (-), connect the pin to the GND port on the Arduino.
  3. Connect each individual segment pin to one individual Arduino...
lock icon The rest of the chapter is locked
Register for a free Packt account to unlock a world of extra content!
A free Packt account unlocks extra newsletters, articles, discounted offers, and much more. Start advancing your knowledge today.
Unlock this book and the full library FREE for 7 days
Get unlimited access to 7000+ expert-authored eBooks and videos courses covering every tech area you can think of
Renews at $19.99/month. Cancel anytime