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Category: Raspberry Pi

microSD Security

microSD Security

Many single board computers and mobile devices use microSD media as their primary data storage.  However, microSD media is also used in cameras, security systems, and other small devices that handle large quantities of data.  The security of this media format is often overlooked. In this post, we’ll look at some history around the topic of microSD security and its implications.  I’ll also be covering some basic concepts of securing microSD media. MicroSD media is an extremely small form factor…

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RetroPie, Emulation Station, and Webmin

RetroPie, Emulation Station, and Webmin

Peter Carcione made a youtube clip last year about Game Wizard’s adaptation of RetroPie, a game console emulator that plays video games from the early days of gaming. It runs on a Raspberry Pi and provides an all inclusive interface to run the various console platforms. He provides a step by step that still works as of this writing, you can find it here https://www.youtube.com/watch?v=759AWWchIdE One of the things that I noticed was that the distro that RetroPie ran on…

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SoX Background Audio Monitoring – Triggered Recordings

SoX Background Audio Monitoring – Triggered Recordings

SoX offers quite a few ways to record audio. In this post, I’ll be covering how to record audio for the purposes of security. Home invasions are a sad fact of modern life for any number of reasons. I’ll show how to use SoX to capture audio so it can be added to the tools available to secure your personal belongings. One of the most simplest ways to get a recording from a microphone is to use the following commands….

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RF Spectrum Sweep

RF Spectrum Sweep

Identifying RF Channels to monitor can be a time consuming effort. Using a standard non PC radio receiver can take a long time to identify a transmitting channel. Using RTL_Power and SDR FFT Spectrum Logging provided here (http://kmkeen.com/rtl-power/), makes the effort less challenging. RTL_Power will sweep through a range of radio frequencies at given steps and log the RF power levels detected by the USB SDR receiver. It does this over and over at set intervals to create a log…

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