Ever wanted to act out your childhood dreams of being a spy? Make has a guide for building your own audio bugging device, which broadcasts an extremely low powered FM signal about 160 feet.


The basic project here requires messing around with a soldering iron, building a circuit, and then tweaking all kinds of things. The end result’s a tiny little transmitter that’ll pick up sound and broadcast it over FM. If you’ve seen the Veronica Mars movie, you get how this thing works. This is a fun little project simply meant to teach you how a variety of electronics work. Because of what it is, make sure you check your local regulations before you build it, especially since you’re broadcasting on the FM band here. Head over to Make for the full guide.

Make a Teeny Tiny FM Spy Transmitter | Make