30’S style REGENERATIVE RECEIVER

[Des] sent in this really cool writeup on building a Regenerative receiver using VFDs. Regenerative receivers are generally short wave radio receivers that use positive feedback to a lot more finely tune the signal. though they can be built with modern components, [Des] wanted to try to make something that not only looked like it …

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SMARTPHONE managed LABYRINTH

This entire job might have been done as an app, drawing the labyrinth as well as sphere virtually on the screen. however that wouldn’t have been almost as fun as what [Matt] accomplished. He developed a bit Labyrinth which responds to the accelerometer in his phone. Take a close look at that handset. It’s not …

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CONDENSER MICROPHONE building

browsing around today, this job caught our eye. mainly because of the visual similarity to, well, personal massagers. As it turns out, it’s a house made studio condenser microphone. We would generally prefer to link directly to his personal page, that has a somewhat more in dept compose up, however it has popups as well …

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HACKADAY LINKS: APRIL 9, 2017

[Federico Musto], one of the Arduinos in the Arduino vs. Arduino saga (which lastly concerned an end last September) may have fabricated his academic record. This news comes from Wired, offering files from the registrars at MIT as well as NYU specifying [Musto] never went to these institutions. because this story came out, [Musto] has edited …

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FORKNIFE, ANDROID G1 managed ROBOT

When we first saw [Jeffrey Nelson]’s G1 based robot we immediately wondered what the transfer for the controls was. The G1‘s hardware supports USB On-The-Go, but it’s not implemented in Android yet. It turns out he’s actually sending commands by using DTMF tones through the headphone adapter. The audio jack is linked to a DTMF …

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IR BASED AUGMENTED reality

For a final design project, [Frank] and his group took on an augmented reality project. The goal was to make objects interactively controllable by pointing a smartphone at them. Their solution was Augmented reality universal Controller and Identifier (ARUCI). The system locates controllable objects by sensing IR beacons that contain identifiers for each object. The IR is received …

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