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Build a Better DIY Seismometer

Cars That Think

Data is stored on a logging board with a real-time clock [bottom]. second intervals and store the time-stamped data on a microSD card. earthquake struck just off the coast of Cuba. Consulting the global repository of shared Raspberry Shake data , I could see that units in Florida and South Carolina picked up that quake easily.

DIY 138
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Ham Radio Jamming, Wireless Industry Battlegrounds, and IoT in Space

Cars That Think

Despite—or perhaps because of—the global pandemic, 2021 saw plenty of new innovations for communications technologies. Here are the highlights of what went down in telecom this year: Cuba Jamming Ham Radio? His Q&A with IEEE Spectrum is chock-full of insights on what 6G might have in-store for us all.

Industry 141
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Come Home With Memories, Not a Shocking Phone Bill

Baua Electric

There are two major options: You can get a data plan directly through your phone company or you can swap out your phone’s SIM card, a small chip that stores data about you and your carrier — on newer phones, you can use an app that does the same thing. Some exceptions: Cuba and the Maldives. Exceptions: Cuba and the Maldives.