Vintage Plotter Gets Bluetooth Upgrade

Recently [iot4c] stumbled upon this gorgeous Robotron Reiss plotter from 1989, brand-new and still in its original box. Built before the fall of the Berlin Wall in East Germany, it would be a crime to allow such a piece of computing history to go unused. But how to hook it …read more

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SoniTalk: A new method for near-field communication

The technology is available for free and – contrary to similar technologies – focuses on security and data protection. In this way, SoniTalk leaves it up to the users to decide which apps and devices are allowed to communicate via ultrasoun… Continue reading SoniTalk: A new method for near-field communication

Smash-and-grab car thieves use Bluetooth to target cars containing tech gadgets

For a long time it has been regarded as one of the security industry’s urban myths, but now law enforcement agencies have confirmed that they are investigating whether thieves have been identifying which cars might be carrying high tech gadgets t… Continue reading Smash-and-grab car thieves use Bluetooth to target cars containing tech gadgets

The way Bluetooth devices ‘talk’ to apps leaves them vulnerable

Mobile apps that work with Bluetooth devices have an inherent design flaw that makes them vulnerable to hacking, a research has found. Where is the issue? The problem lies in the way Bluetooth Low Energy devices communicate with the mobile apps that co… Continue reading The way Bluetooth devices ‘talk’ to apps leaves them vulnerable

Printed Arduino Turntable Takes Objects For a Spin

Have you built a 3D scanner yet? There’s more than one way to model those curves and planes, but the easiest may be photogrammetry — that’s the one where you take a bunch of pictures and stitch them into a 3D model. If you build a scanner like [Brian Brocken]’s …read more

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Improbably Cheap Pocket Welder Gets an ESP32 Makeover

If you move in certain shady circles, you may have noticed the crop of improbably cheap “pocket welders” popping up on the market these days. They’re all variations on a theme, most with wildly optimistic specs minimal accessories of the lowest possible quality. But their tiny size and matching price …read more

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