IEEE Spectrum

IEEE Spectrum


Brain-Zapping Gadgets Need Regulation, Say Scientists and (Some) Manufacturers

Posted: 31 Aug 2016 09:00 AM PDT



At-home use of brain stimulation devices is already a reality, but the U.S. FDA has yet to step in

Future Airplanes Will Fly On Twistable Wings

Posted: 31 Aug 2016 08:00 AM PDT



Replacing traditional flaps with bendable bits will reduce noise and save fuel

Researchers Map Locations of 4,669 Servers in Netflix’s Content Delivery Network

Posted: 30 Aug 2016 02:00 PM PDT



The CDN of the popular video-streaming service lives in at least 243 locations

Maybe Drone Privacy Shouldn't Be a Federal Case

Posted: 30 Aug 2016 12:30 PM PDT



The FAA's new drone rules leave an opening for state and local authorities to pursue privacy protections

Mediterranean Countries Forgot the Mediterranean Diet

Posted: 30 Aug 2016 12:00 PM PDT



The world is tending toward a monodiet based on Western fast food, and nowhere is this more striking than in Spain and Italy

Graphene Enables Next Step Towards the Age of "Valleytronics"

Posted: 30 Aug 2016 12:00 PM PDT



Graphene opens up possibilities beyond electronics and spintronics to a new era of valleytronics

Centimeter-Level GPS Positioning For Cars

Posted: 30 Aug 2016 10:00 AM PDT



Cheap, near-instantaneous, and superaccurate positioning can keep cars safely within their lanes—even in a blizzard

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RobotShop Feeds



Arduino Tutorials – How to Stack Wheatstone Bridge Shields

Arduino Uno + 2x RB-Onl-38 + x4 load cells

Arduino Uno + 2 x RB-Onl-38 + 4 x load cells

 

A common question concerning our Wheatstone bridge amplifier shield since the creation of the blog post Interfacing a Load Cell With an Arduino Board is “How can we stack two shields together with three or four load cells?”

This is actually quite simple and only requires a few components:

First, place the first shield on top of the Arduino and connect your load cells to the shield. Then add the stacking headers and the second shield, bending the stacking header pins for A0 and A1 outwards.

Arduino Uno + 2x RB-Onl-38 + Stacking headers - 0001

Stacking header pins bent outwards on pins A0 & A1

Use some male to female jumper wires to connect the bent pins to the top shield’s female header at the A2 and A3 positions.

Arduino Uno + 2x RB-Onl-38 + Stacking headers - 0002

Bend pins A0 & A1 connected to top shield’s A2 & A3

Finally, obtain a fresh copy of our Wheatstone bridge amplifier shield Arduino library from the RobotShop GitHub repository for this project (or download directly as a zip). It now includes an example that is ready to go for quickly testing your setup with two shields and four load cells.

Of course, since most Arduino-shield compatible microcontroller boards have also A4 and A5 pins, you could in theory stack a third shield, following the same method described above. Anyone interested in trying that out? 🙂

 

     
 
 
   
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IEEE Spectrum

IEEE Spectrum


Drive.ai Solves Autonomous Cars' Communication Problem

Posted: 30 Aug 2016 09:00 AM PDT



Safe driving is only one part of the autonomous car challenge. Interaction with humans is another

Some Assembly Required

Posted: 30 Aug 2016 08:00 AM PDT



This online simulator lets you explore the workings of a simple microprocessor

The Surprising Story of the First Microprocessors

Posted: 30 Aug 2016 08:00 AM PDT



You thought it started with the Intel 4004, but the tale is more complicated

IEEE Spectrum

IEEE Spectrum


Finnish Carrier Sets New World Record for 4G Download Speeds

Posted: 29 Aug 2016 09:00 AM PDT



And that's good news because Finns use a ton of data

Malawi and South Africa Pioneer Unused TV Frequencies for Rural Broadband

Posted: 29 Aug 2016 08:46 AM PDT



Pilot projects show the potential for repurposing TV frequencies

Injectable Nanowires Monitor Mouse Brains for Months

Posted: 29 Aug 2016 08:32 AM PDT



Implantable device could teach about brain development and disease

New 3D Composites Could Help Store Energy for Hybrid and Electric Vehicles

Posted: 29 Aug 2016 07:00 AM PDT



A sandwich of polymers and nanoceramic parts could improve the performance of capacitive storage devices

IEEE Spectrum

IEEE Spectrum


Nanoscale Wireless Communication Operates at Visible Wavelengths for the First Time

Posted: 26 Aug 2016 01:00 PM PDT



Plasmonic nanoantennas are 60 percent faster than previous plamsonic waveguides

Setting a Land Speed Record with a Sidecar Motorcycle

Posted: 26 Aug 2016 12:49 PM PDT



Kevin Clemens built this electric sidecar motorcycle to set a world record on the salt flats of Bonneville

DIY Emergency Button: Hack a Nike+iPod Sport Kit to Create an Elder Alert System

Posted: 26 Aug 2016 12:00 PM PDT



Some inexpensive components can replace pricey commercial services