Visualize noise pollution with an Arduino sound meter

In our day-to-day lives we encounter a wide variety of ambient sounds, and in order to highlight noise pollution, Lucía Garbo decided to make an elegant meter

The device features an outer shell designed in Fusion 360 and 3D-printed, concealing an Arduino Mega, a SparkFun Sound Detector, and associated circuitry inside. Components are neatly connected via a perfboard, which should allow easy modification later.

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Intro to Hardware Reversing: Finding a UART and getting a shell

This video is part of the Figurable project, which is geared toward people who are curious about IoT security and looking for that first bite of the apple.
If you’re interested in hardware but haven’t had a chance to play with any yet, this one’s for you. In this “hello world”-level reversing project we’re checking out a UART (serial port) and using it to access a shell on a *very* soft target.
If you decide to try it on your own you’ll find an equipment list, walk-through references, and some troubleshooting ideas at the link below.