IoT & Hardware
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You're reading from  Arduino By Example

Product typeBook
Published inSep 2015
Reading LevelIntermediate
Publisher
ISBN-139781785289088
Edition1st Edition
Languages
Python
Tools
Arduino
Concepts
Single Board Computers
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Authors (2):
Adith Jagadish Boloor
Adith Jagadish Boloor
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Adith Jagadish Boloor

Adith Jagadish Boloor was born in Mangalore, India. He grew up tinkering with toys and gadgets that kindled his interest in how things work. His admiration for science and technology, specifically in the fields of robotics, 3D printing, and smart systems, grew into a passion that he is working towards, nurturing it into a career. He completed his higher studies at Purdue University, USA and Shanghai Jiao Tong University, China and is working towards obtaining a masters degree in robotics. Adith has experience working on robots ranging from simple obstacle—avoiding robots built at home to complex humanoid robots such as the Darwin-OP in Purdue University's research lab. He has coauthored a research paper and has two patents on his name. He enjoys traveling and grabs every opportunity he can to explore the different parts of the world. He is also an international chess player.
Read more about Adith Jagadish Boloor

Adith Jagdish Boloor
Adith Jagdish Boloor
author image
Adith Jagdish Boloor

<p>Adith Jagadish Boloor was born in Mangalore, India. He grew up tinkering with toys and gadgets that kindled his interest in how things work. His admiration for science and technology, specifically in the fields of robotics, 3D printing, and smart systems, grew into a passion that he is working towards, nurturing it into a career. He completed his higher studies at Purdue University, USA and Shanghai Jiao Tong University, China and is working towards obtaining a masters degree in robotics.</p> <p>Adith has experience working on robots ranging from simple obstacle—avoiding robots built at home to complex humanoid robots such as the Darwin-OP in Purdue University's research lab. He has coauthored a research paper and has two patents on his name.</p> <p>He enjoys traveling and grabs every opportunity he can to explore the different parts of the world. He is also an international chess player.</p>
Read more about Adith Jagdish Boloor

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A bit about the sensor

The SR04 is a very powerful and commonly used distance/proximity sensor. And that is what we are going to look at first. The SR04 sensor emits ultrasonic waves which are sound waves at such a high frequency (40 kHz) that they are inaudible to humans. When these waves come across an object, some of them get reflected. These reflected waves get picked up by the sensor and it calculates how much time it took for the wave to return. It then converts this time into distance.

We are firstly going to use this sensor to make a simple proximity switch. Basically, when you bring an object closer than the set threshold distance, an LED is going to light up.

This is the circuit that we need to construct. Again, be very careful about where everything goes and make sure there are no mistakes. It is very easy to make a mistake, no matter how much experience you've had with Arduinos.

In reality it is going to look something like this, much messier than the Fritzing circuit depicted in...

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Arduino By Example
Published in: Sep 2015Publisher: ISBN-13: 9781785289088
© 2015 Packt Publishing Limited All Rights Reserved

Authors (2)

author image
Adith Jagadish Boloor

Adith Jagadish Boloor was born in Mangalore, India. He grew up tinkering with toys and gadgets that kindled his interest in how things work. His admiration for science and technology, specifically in the fields of robotics, 3D printing, and smart systems, grew into a passion that he is working towards, nurturing it into a career. He completed his higher studies at Purdue University, USA and Shanghai Jiao Tong University, China and is working towards obtaining a masters degree in robotics. Adith has experience working on robots ranging from simple obstacle—avoiding robots built at home to complex humanoid robots such as the Darwin-OP in Purdue University's research lab. He has coauthored a research paper and has two patents on his name. He enjoys traveling and grabs every opportunity he can to explore the different parts of the world. He is also an international chess player.
Read more about Adith Jagadish Boloor

author image
Adith Jagdish Boloor

<p>Adith Jagadish Boloor was born in Mangalore, India. He grew up tinkering with toys and gadgets that kindled his interest in how things work. His admiration for science and technology, specifically in the fields of robotics, 3D printing, and smart systems, grew into a passion that he is working towards, nurturing it into a career. He completed his higher studies at Purdue University, USA and Shanghai Jiao Tong University, China and is working towards obtaining a masters degree in robotics.</p> <p>Adith has experience working on robots ranging from simple obstacle—avoiding robots built at home to complex humanoid robots such as the Darwin-OP in Purdue University's research lab. He has coauthored a research paper and has two patents on his name.</p> <p>He enjoys traveling and grabs every opportunity he can to explore the different parts of the world. He is also an international chess player.</p>
Read more about Adith Jagdish Boloor

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