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Raspberry Pi Essentials
book

Raspberry Pi Essentials

by Jack Creasey
April 2015
Beginner content levelBeginner
212 pages
4h 47m
English
Packt Publishing
Content preview from Raspberry Pi Essentials

Implementing navigate.py

The final module for our line-following robot is navigate.py. This program initiates the pipes that will instantiate the rbuttons.py, rcam.py, and rwheel.py programs as separate processes using multiple Popen() functions. It provides a minimal user-text-mode interface, provides the logic to handle button functions, and most importantly provides the logic to steer the robot.

Downloading navigate.py

The following shows the steps to download navigate.py as well as the explanation of the code's functionality:

  1. Use the command line to open a new instance of the Python 2 IDLE (it does not need to have root privilege).
  2. Download navigate.py from the Chapter 8 folder at http://1drv.ms/1ysAxkl
  3. Open navigate.py in the Python IDE (non-privileged). ...
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Publisher Resources

ISBN: 9781784396398Supplemental Content