Book Image

Raspberry Pi for Secret Agents

By : Stefan Sjogelid
Book Image

Raspberry Pi for Secret Agents

By: Stefan Sjogelid

Overview of this book

Ever wished you could play around with all the neat gadgets your favorite spies use (like James Bond or Michael Westen)? With the introduction of the remarkable Raspberry Pi and a few USB accessories, anybody can now join in on the action.Discover how to turn your Raspberry Pi into a multipurpose secret agent tool! Through a series of fun, easy-to-follow projects you'll learn how to set up audio/video surveillance, explore your Wi-Fi network, play pranks on your friends, and even learn how to free your Raspberry Pi from the constraints of the wall socket.Raspberry Pi for Secret Agents starts out with the initial setup of your Raspberry Pi, guides you through a number of pranks and secret agent techniques, and then shows you how to apply what you've learned out in the real world. Learn how to configure your operating system for maximum mischief and start exploring the audio, video, and Wi-Fi projects. Learn how to record, listen, or talk to people from a distance and how to distort your voice. You can even plug in your webcam and set up a motion detector with an alarm, or find out what the other computers on your Wi-Fi network are up to. Once you've mastered the techniques, combine them with a battery pack and GPS for the ultimate off-road spy kit.
Table of Contents (12 chapters)
Raspberry Pi for Secret Agents
Credits
About the Author
About the Reviewers
www.PacktPub.com
Preface
Index

Listening in on conversations from a distance


What if we want to listen in on some event, live as it goes down, but from a safe distance away from where the Pi's recording—exactly like a baby monitor?

We would need a way of broadcasting whatever is recorded across a network to another computer that we can listen to. Actually, we already have everything required to do this, SSH and SoX; one just have to know how to compose the command lines to wield these powerful tools.

Listening on Windows

You should have the full PuTTY suite installed from the Connecting to the Pi from Windows section from Chapter 1, Getting Up to No Good, as we will be using the plink command for this example.

  1. To download SoX for Windows, visit http://sourceforge.net/projects/sox/files/sox/ and click on the download link for the latest version (sox-14.4.1-win32.exe at the time of writing).

  2. Run the installer to install SoX.

  3. (Optional) To be able to play MP3 files with SoX, download the decoder library file from http://www.intestinate...