Sign In Start Free Trial

Book Overview & Buying
Table Of Contents
Feedback & Rating

Raspberry Pi for Secret Agents - Second Edition

By : Sjogelid

4.1 (14)

Raspberry Pi for Secret Agents - Second Edition

4.1 (14)

By: Sjogelid

Overview of this book

This book is an easy-to-follow guide with practical examples in each chapter. Suitable for the novice and expert alike, each topic provides a fast and easy way to get started with exciting applications and also guides you through setting up the Raspberry Pi as a secret agent toolbox.

Preface

Preface

What this book covers

What you need for this book

Who this book is for

Conventions

Reader feedback

Customer support

Free Chapter

1. Getting Up to No Good

1. Getting Up to No Good

A brief history lesson on the Pi

The ins and outs of the Raspberry Pi

Installing the Raspbian OS on the SD card

Booting up and configuring Raspbian

Accessing the Pi over the network using SSH

The importance of a sneaky headless setup

Keeping your system up-to-date

Backing up your SD card

Summary

2. Audio Antics

2. Audio Antics

Configuring your audio gadgets

Recording conversations for later retrieval

Listening in on conversations from a distance

Talking to people from a distance

Distorting your voice in weird and wonderful ways

Scheduling your audio actions

Calling your fellow agents

Bonus one line sampler

Summary

3. Webcam and Video Wizardry

3. Webcam and Video Wizardry

Setting up your camera

Capturing your target on film

Detecting an intruder and setting off an alarm

Watching your camera over the Internet

Turning your TV on or off using the Pi

Scheduling video recording or staging a playback scare

Summary

4. Wi-Fi Pranks – Exploring Your Network

4. Wi-Fi Pranks – Exploring Your Network

Getting an overview of all the computers on your network

Finding out what the other computers are up to

Pushing unexpected images to browser windows

Knocking all visitors off your network

Protecting your network against Ettercap

Analyzing packet dumps with Wireshark

Exploring dynamic DNS, port forwarding, and tunneling

Creating a diversion using a chat bot

Keeping your conversations secret with encryption

Summary

5. Taking Your Pi Off-road

5. Taking Your Pi Off-road

Keeping the Pi dry and running with housing and batteries

Setting up point-to-point networking

Creating an ad hoc Wi-Fi network

Turning the Pi into a Wi-Fi hotspot

Tracking the Pi's whereabouts using GPS

Controlling the Pi with your smartphone

Receiving status updates from the Pi

Accessing your files from anywhere with Dropbox

Keeping your data secret with encryption

Erasing the Pi should it fall into the wrong hands

Summary

Graduation

Index

Index

Customer Reviews

4.1 (14)

5 star

71.4%

4 star

7.1%

3 star

0

2 star

7.1%

1 star

14.3%

Configuring your audio gadgets

Before you go jamming all your microphones and noisemakers into the Pi, let's take a minute to get to know the underlying sound system and the audio capabilities of the Raspberry Pi board itself.

Introducing the ALSA sound system

The Advanced Linux Sound Architecture (ALSA), is the underlying framework responsible for making all the sound stuff work on the Pi. ALSA provides kernel drivers for the Pi itself and for most USB gadgets that produce or record sound. The framework also includes code to help programmers make audio applications and a couple of command-line utilities that will prove very useful to us.

In ALSA lingo, each audio device on your system is a card, a word inherited from the days when most computers had a dedicated sound card. This means that any USB device you connect that makes or records sound is a card as far as ALSA is concerned—be it a microphone, headset, or webcam.

Type in the following command to view a list of all connected...

Search

Your notes and bookmarks