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Learn Robotics Programming

You're reading from   Learn Robotics Programming Build and control autonomous robots using Raspberry Pi 3 and Python

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Product type Paperback
Published in Nov 2018
Publisher Packt
ISBN-13 9781789340747
Length 472 pages
Edition 1st Edition
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Author (1):
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Danny Staple Danny Staple
Author Profile Icon Danny Staple
Danny Staple
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Table of Contents (21) Chapters Close

Preface 1. Introduction to Robotics 2. Exploring Robot Building Blocks - Code and Electronics FREE CHAPTER 3. Introducing the Raspberry Pi - Starting with Raspbian 4. Preparing a Raspberry Pi for a Robot - Headless by Default 5. Backing Up the Code with Git and SD Card Copies 6. Building Robot Basics - Wheels, Power, and Wiring 7. Drive and Turn - Moving Motors with Python 8. Programming Line-Following Sensors Using Python 9. Programming RGB Strips in Python 10. Using Python to Control Servo Motors 11. Programming Distance Sensors with Python 12. Programming Encoders with Python 13. Robot Vision - Using a Pi Camera and OpenCV 14. Voice Communication with a Robot Using Mycroft 15. Programming a Gamepad on Raspberry Pi with Python 16. Taking Your Robot Programming Skills Further 17. Planning Your Next Robot Project - Putting It All Together 18. Assessments 19. Other Books You May Enjoy Appendix

Making it start when the Pi starts

You now have a menu system to launch your robot behaviors, and a set of compatible behaviors in it. Although using ssh to log in is great to debug, see problems, and fix them, if you want to demonstrate your robot, it is even better to turn on your robot, point your phone browser at it once the lights stop blinking, and go.

We are going to do two things to make this useful:

  • Use an LED to indicate that it's ready (in menu mode) to allow the robot to tell us before our phone has linked to the page
  • Use systemd to automatically start the menu Flask server when the robot is switched on

Adding lights to the menu server

We won't want the whole robot system added to our menu, but the...

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