Arduino: Building exciting LED based projects and espionage devices

Chapter 3. Building an EMF Bug Detector

In this chapter, we are going to build a very useful tool that every secret agent should have: a bug detector. We will build a simple device that will allow you to detect whether there are any bugs nearby, such as a recording device or a wireless hidden camera.

The following are the topics that we will cover in this chapter:

• We will build a project with a simple wire antenna and the project will display the EMF readings on LCD screen.
• We will also add a simple LED to indicate when EMF activity goes above a certain threshold.

Let's dive in!

Hardware and Software requirements

First, let's see what the required components for this project are.

You will, of course, need the usual Arduino Uno, that will act as the brain ...