Book Image

Arduino BLINK Blueprints

By : Utsav Shah
Book Image

Arduino BLINK Blueprints

By: Utsav Shah

Overview of this book

Arduino is an open-source prototyping platform based on easy-to-use hardware and software. Arduino has been used in thousands of different projects and applications by a wide range of programmers and artists, and their contributions have added up to an incredible amount of accessible knowledge that can be of great help to novices and experts alike. Want to build exciting LED projects with Arduino? This book will be your companion to bring out the creative genius in you. To begin with, you will get introduced to the maker movement and the open source hardware development Arduino boards. You will then move on to develop a mood lamp and a remote-controlled TV backlight. As you progress through the book, you will develop an LED cube and will learn to use sound visualization to develop a sound-controlled LED Christmas tree. You will then move on to build a persistence of vision wand. At the end of each chapter, you’ll see some common problems, their solutions, and some workarounds.
Table of Contents (14 chapters)

Creating your own Persistence of Vision


One of the five sensory organs of our body, the eye is a remarkable instrument that helps us to process light in such a way that our mind can create meaning from it. Persistence of Vision refers to an optical illusion where multiple different images blend into a single image in the human mind.

The Persistence of Vision illusion plays a role in keeping the world from going pitch black every time we blink our eyes. Whenever a retina is hit by light, it keeps an impression of the light for about a tenth of a second after the light source is removed. Due to this, the eye can't distinguish between changes that occur faster than this retention period. This similar phenomenon is used in motion pictures or, as we call it, "flicks". The motion picture creates an illusion by rapidly sequencing individual photographs. Usually for motion pictures, the rate of frames per second is 24, which leads to a flicker-free picture. If frames per second is kept below 16,...