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Leo and Kate Botello talk with Ian Burkhart, a quadriplegic, who can move his hand thanks to a machine learning computer and a chip in his brain. Two teams from the TBS show "America's Greatest Makers" show off the Delta Glove and Grush toothbrush. Kate tries VR for the first time with the HTC Vive. In Call for Help, learn how you can listen to two different audio sources on one computer. We'll hear from former Screen Savers Patrick Norton and Kevin Rose. Hosts: Leo Laporte and Kate Botello Guests: Ian Burkhart, Dr. Rezai, Gaurav Sharma, Jonathan and Aleda Schaffer, Ethan Schur, Patrick Norton, and Kevin Rose Producers: Jerry Wagley, Tonya Hall, and Karsten Bondy Technical Director: Bryan Burnett Editor: Bryan Burnett The New Screen Savers is available for download at https://twit.tv/shows/new-screen-savers. Thanks to CacheFly for bandwidth for this episode. Sponsors: Amazon.com/TWITRX wealthfront.com/nss
The HTC 10, attaching a cellphone to a landline phone, finding a waterproof phone for surfing, trying to get an old version of Photoshop Elements to work on Windows 10, an app to make the gas station come to you, and more of your calls. Host: Leo Laporte Guests: Johnny Jet and Dick DeBartolo Download or subscribe to this show at https://twit.tv/shows/the-tech-guy. Bandwidth for The Tech Guy podcast is provided by CacheFly. Sponsors: texture.com/techguy opticalcablesbycorning.com Amazon.com/TWITRX
Tonight, we talk about a new lawsuit that says Facebook's opt-out auto-tagging feature is a violation of our biometric privacy. If you want to devote your life to curing disease, the Oculus division of Facebook is apparently not the place to do it. Mary Lou Jepson, formerly of Google, is now leaving Oculus to start her own company to cure disease with an MRI that might be the size of a ski hat. Next, we check in with Sam Machkovech from Ars Technica about the next Battlefield, the rumored Nintendo NX, and the human centipede game Push Me Pull You. Then, we check in with Ian Kar from Quartz about the tumbling stock of the mobile payments company Square. Hosts: Megan Morrone and Jason Howell Guests: Sam Machkovech and Ian Kar Download or subscribe to this show at https://twit.tv/shows/tech-news-today. Thanks to CacheFly for the bandwidth for this show. Sponsors: BLUEAPRON.COM/TWIT trunkclub.com/tnt ziprecruiter.com/tnt
Paramount v. Axanar and a legal brief written in Klingon, Political Campaigns and music licensing, Lenz v. Universal and discouraging abuse of the DMCA takedown process, copyright clash over cheerleading uniforms and more! Photo credit: Falashad. Hosts: Denise Howell, Emory Roane, and J. Michael Keyes Guest: Marc J. Randazza Download or subscribe to this show at https://twit.tv/shows/this-week-in-law. Public list of discussion points, TWiL on Facebook Attorneys may submit a self-study form to their local CLE board seeking MCLE credit approval. Please check the rules and requirements for your specific jurisdiction before submitting any forms. Special thanks to Nigel Clutterbuck for the TWiL theme music. Thanks to CacheFly for the bandwidth for this show. Sponsors: trytunnelbear.com/twil FreshBooks.com/twil
Oracle picks up Opower, Viv wants to be everyone's personal assistant, Microsoft to block SHA-1, Vivek Wadhwa's presentation about disruption, the changing mission of Interop, and more! Hosts: Fr. Robert Ballecer, SJ, Curtis Franklin, and Louis Maresca Guest: Brian Chee Download or subscribe to this show at https://twit.tv/shows/this-week-in-enterprise-tech. Thanks to CacheFly for the bandwidth for this show. Sponsors: canary.tools/twit - use code: TWIT igloosoftware.com/twit
Lyft and GM are set to begin testing their autonomous fleet of ride-sharing Bolts next year, Microsoft touts 300 million devices running Windows 10, Netflix offers new data usage controls, Tesla S has an in-cab upgrade for more battery capacity, the Void looks like the best virtual reality experience ever, and more. Hosts: Megan Morrone, Jason Howell, and Fr. Robert Ballecer, SJ Guests: Mary Jo Foley, Alex Kantrowitz, and Charlie Hall Download or subscribe to this show at https://twit.tv/shows/tech-news-today. Thanks to CacheFly for the bandwidth for this show. Sponsors: ziprecruiter.com/tnt trunkclub.com/tnt BLUEAPRON.COM/TWIT
Patrick Norton is joined by Allyn Malventano to discuss NVIDIA's mysterious new countdown website, AMD's A10-7860K/A8-7670K, Corsair's H80i v2 High Perf Liquid CPU Cooler, LEDE's split from OpenWRT, ICY DOCK's storage solutions, and more! Hosts: Patrick Norton and Allyn Malventano Download or subscribe to this show at https://twit.tv/shows/this-week-in-computer-hardware. Thanks to CacheFly for the bandwidth for this show. Sponsor: wealthfront.com/twich
Scott Wilkinson talks with Larry Pace, president of DarbeeVision, about his company's video processing. Host: Scott Wilkinson Guest: Larry Pace Subscribe to Home Theater Geeks at https://twit.tv/shows/home-theater-geeks Thanks to Cachefly for the bandwidth for this show. Sponsors: opticalcablesbycorning.com curiositystream.com/twit offer code: TWIT Epson.com/ecotankleo
We show how to build a pan and tilt for your camera using stepper motors and an Arduino.Servomotor vs. Stepper Motor in a Servo Mechanism Servomotor: A servo is a device that uses a motor with few poles (4-12+) along with some kind of feedback to move a shaft to a particular position. In the case of the servos we're accustomed to using, a simple potentiometer connected to the gearing allows us to put a servo in a particular position. Stepper Motor: A stepper motor is built on a multi-phase motor, with a large number of poles, (50-100+) that moves in "steps" These steps are made by pulsing the various phases of the motor to achieve rotation Stepper motors are usually NOT used with feedback, instead counting on their inherent angular position (created by the way the coils and magnets are laid out in the can) to "step" to particular positions. Pro/Cons: Stepper motors offer more torque at low speeds AND offer "holding torque" because of its inherent angular position. Stepper motors tend to be cheaper Stepper motors can be used without a position encoder Stepper motors lose as much as 80% of their initial torque at 90% speed Stepper motors are slow and not good at accelerating an opject Because they have no positional feedback, it's possible to miss a step Stepper motors suffer from vibration and resonance problems (annoying whine) Servos can move much more quickly (up to ~2,000rpm) Servos have more torque at high speed Servos are more efficient Servos don't vibrate as much as stepper motors Servos require complicated feedback and drive circuitry Complicated gearboxes (prone to destruction) More expensive Now... let's take a look at OUR Stepper Motor! 28BYJ-48 Motor + ULN2003 Driver Important Specs: 5 Volts 4 Phase Stride Angle: 5.625 Speed Variation Ratio: 1/64 What does this tell us? This will work on the same 5V power source we're using for the Arduino A "stride angle" of 5.625 gives us 64 steps for a full rotation of the shaft. (360 / 5.625 = 64) It is down-geared 64 times: That means the motor shaft has to spin 64 times for every time the stepper shaft rotates once. This means we have 4096 steps for full rotation of the stepper shaft: (360 degrees / (5.625 / 64) = 4096) OK... let's build! Parts List:Arduino of your ChoiceStepper Motor and Driver5V Power SupplyBreadboard What's What? Show the power input and switch Show IN1-4 Show the motor connector Let's put it together! Connect the motor to the driver board Attach a 5V power supply to the power-in on the driver board Connect IN1-4 to Arduino digital pins 4-7 Connect power to the Arduino That's It! Let's Program! The Code is Available at the link below:https://www.dropbox.com/s/ty21w4exs6ruka9/KH209_Stepduino.zip?dl=0 The STL Files for our 3D Printed frame is at the link below:https://www.dropbox.com/s/jfpn6furd033irn/KH209_Stepduino_STL_Files.zip?dl=0 These show notes have been truncated due to length. For the full show notes, visit https://twit.tv/shows/know-how/episodes/209 Hosts: Fr. Robert Ballecer, SJ and Bryan Burnett Sponsors: ifixit.com/twit enter code KNOWHOW digitalocean.com - promo code: KNOWHOW
Bob explains why the iC 7300 is setting Amateur Radio on fire, Gordo reports back from Las Vegas, get this weeks update from Newsline, and Val interviews David Collingham K3LP about the VP8 expeditions. Hosts: Bob Heil, Gordon West, George Thomas, Don Wilbanks, Valerie Hotzfeld, and Amanda Alden Guest: David Collingham Thanks to Joe Walsh who wrote and plays the Ham Nation theme. Subscribe to Ham Nation at https://twit.tv/shows/ham-nation Thanks to CacheFly for the bandwidth for this show. Sponsors: icomamerica.com/hamnation Amazon.com/TWITRX dxengineering.com/hamnation