There are few things as frustrating when you’re trying to get some serious hacking done than intruders repeatedly showing up without permission. [All Parts Combined] has the solution for you, with a Kinect-based robotic sentry turret to keep them at bay.

The system consists of a Microsoft Kinect V2 connected to a PC, which runs an app to do all the processing, and outputs the targeting information to an Arduino over serial. The Arduino controls a simple 2-axis servo mount with an electric airsoft gun zip-tied to it. The trigger switch is replaced with a relay, also connected to the Arduino.

The Kinect V2 comes with SDKs that really simplify tracking human movement, and outputs the data in an easy-to-use format. [All Parts Combined] used the SDK in Unity, which allows him to choose which body parts to track. He added scripts that detect a few basic gestures, issues voice commands, and generates the serial commands for the Arduino. The servo angles are calculated with simple geometry, using XY coordinates of the target received from the SDK, and the known distance between the Kinect and turret. When an intruder enters the Kinect’s field of view it immediately starts aiming at the intruder’s heart, issues a “Hands Up!” command, and tells the intruder to leave. If the intruder doesn’t comply, it starts an audible countdown before firing. [All Parts Combined] also added a secret disarming gesture (double hand pistols), which turns the turret into an apologetic comrade. All it needs is a Portal-inspired enclosure.

It’s a fun project that illustrates how the Kinect can make complex computer vision tasks relatively simple. Unfortunately the V2 is no longer in production, having been replaced by the more expensive, developer focused Azure Kinect. We’ve covered several Kinect-based projects, including a 3D room scanner and a robotic basketball hoop.

Sick of trying to control your 360 using Kinect, semaphore and advanced flailing? Modgod Ben Heck, deciding he wanted to be more Minority Report and less lunatic, has been working on Power Glove 2.0 to improve the console's navigation experience. The prototype glove is tricked out with Arduino, an accelerometer, a gyroscope and some fingertip buttons. With the addition of IR and a little coding magic, the 360's interface can be controlled via subtle gestures, with increased functionality / style points also apparent. Check out the latest episode of The Ben Heck Show after the break for a detailed walkthrough of the project and a demo of the glove in action.

Continue reading Ben Heck makes Super Glove mod for Kinect, takes strain out of gestures (video)

Ben Heck makes Super Glove mod for Kinect, takes strain out of gestures (video) originally appeared on Engadget on Mon, 04 Jun 2012 17:33:00 EST. Please see our terms for use of feeds.

Makers need to familiarize themselves with the core concepts and the theory involved in creating applications such as Motion Sensing and Face Tracking. As the technology is churning out new hardware day and night, DIYers need to work hard to keep up and always be in touch with the latest technology around them.

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For example, anyone working with Accelerometers/ Gyroscopes or Inertial Measurement Units needs to understand the theory of Vectors, Force, Gravity and be able to work out complex mathematical problems. They may easily get an Arduino Board and an Accelerometer Breakout or an IMU Board and use a library instead of writing their own code but to truly understand the theory behind it; how the device actually works, is not for the faint of heart.

One such problem is the Face Tracking Application. Unless you know the real theory behind how the Algorithm actually works, you can only wonder about that robot which follows its master. Greg Borenstein had an idea of creating a website dedicated to this issue. Makematics – Math for Makers.

In an introductory post, Greg writes:

” I hope to show that a normal programmer with no special academic training can grapple with these areas of research and find a way in to understanding them. And as I go I aim to create material that will help others do the same. If I can do it, there’s no reason you can’t.”

More and more people should step forward and create or compile a good amount of research data to help fellow makers and DIYers in solving complex mathematical problems.

This project is HUGE. Lets start form the begining, I am a university student and for my final project I wanted to do a big robot, that is untill I found out that the university picks a group of projects and you choose one, so I've decided to make it anyway. 

Tech specs:

Microsoft Kinect, computer/laptop, a couple of Arduinos and a rasberry pi working together over Xbee radio or something similar

Physical specs:

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Continue reading My Keepon: Kinect-ing hackers and goths through the art of dance (video)

My Keepon: Kinect-ing hackers and goths through the art of dance (video) originally appeared on Engadget on Fri, 18 Nov 2011 13:12:00 EST. Please see our terms for use of feeds.