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Hands-On Robotics with JavaScript

You're reading from   Hands-On Robotics with JavaScript Build robotic projects using Johnny-Five and control hardware with JavaScript and Raspberry Pi

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Product type Paperback
Published in Aug 2018
Publisher Packt
ISBN-13 9781789342055
Length 214 pages
Edition 1st Edition
Languages
Concepts
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Author (1):
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Kassandra Perch Kassandra Perch
Author Profile Icon Kassandra Perch
Kassandra Perch
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Toc

Table of Contents (14) Chapters Close

Preface 1. Setting Up Your Development Environment FREE CHAPTER 2. Creating Your First Johnny-Five Project 3. Building Interactive Projects with RGB LED 4. Bringing in Input with Buttons 5. Using a Light Sensor to Create a Night-Light 6. Using Motors to Move Your Project 7. Using Servos for Measured Movement 8. The Animation Library 9. Getting the Information You Need 10. Using MQTT to Talk to Things on the Internet 11. Building a NodeBots Swarm 12. Assessments 13. Other Books You May Enjoy

Chapter 6

  1. A motor is an electrical device that converts electricity into rotational movement
  2. The difference between a motor and a stepper motor is that motor can only be told what direction and speed to go, while a stepper motor can be told how many pre-defined increments to move, making it better for precision movements.
  3. You should use external power for motors because otherwise, it will draw too much power from the Raspberry Pi, causing strange errors or even reboots while your project is running. Your motors may also run slowly or not respond to commands when powered directly from the Pi.
  4. We need a Pi hat to control our motor because getting the motor to move backward requires extra components that the hat provides—it also makes it much easier to supply external power to the motors.
  5. The benefits of the Motors object when controlling multiple motors is the ability to...
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