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Learning Javascript Robotics

Learning Javascript Robotics

By : Kassandra Perch
4.3 (6)
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Learning Javascript Robotics

Learning Javascript Robotics

4.3 (6)
By: Kassandra Perch

Overview of this book

There has been a rapid rise in the use of JavaScript in recent times in a variety of applications, and JavaScript robotics has seen a rise in popularity too. Johnny-Five is a framework that gives NodeBots a consistent API and platform across several hardware systems. This book walks you through basic robotics projects including the physical hardware builds and the JavaScript code for them. You'll delve into the concepts of Johnny-Five and JS robotics. You'll learn about various components such as Digital GPIO pins, PWM output pins, Sensors, servos, and motors to be used with Johnny-Five along with some advanced components such as I2C, and SPI. You will learn to connect your Johnny-Five robots to internet services and other NodeBots to form networks. By the end of this book, you will have explored the benefits of the Johnny-Five framework and the many devices it unlocks.
Table of Contents (11 chapters)
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10
Index

Outputs that require multiple pins

There are many types of output, many of which only need one output pin for data, such as LEDs and the Piezo element that we used in the last few chapters. However, there are nearly an infinite number of output devices that we can use—many of them require more complicated instructions than one output pin is capable of sending.

These devices work in several different ways, and while the exact ways are well beyond the scope of this book, we'll go over a few very common types. For this chapter, however, we'll just go over the I2C, because it is the common format for the device that we will use in this chapter's project.

Inter-Integrated Circuits (I2C)

I2C, or Inter-Integrated Circuits, are output devices that can share the same set of two data pins. The data pins are usually called SCL (Serial Clock Line) and SDA (Serial Data Line), where SCL handles timing and SDA sends data. The reason you can wire many devices to one pair of digital output...

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