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Catherine Rehwinkel

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  • home
  • VIDS.
  • PERSPECTIVE DESIGN
  • WRITING
  • ITP NYU
  • DRAWN
  • ME

Haptic Bike Navigation 1st Prototype + BOM 1.0

October 29, 2014

This is a nascent prototype for a haptic feedback navigation system designed for cyclists.  A rider indicates a destination as simply as possible with the interface - potentially a smartphone app.  The handlebar interface signals with a vibration ahead of a turn and the confirms its correctness after the turn has been made.

 For our next prototype we plan to incorporate serial communication via a smartphone app as well as an offline True North-indicating mode.

Our goal is to pinpoint the frustrations cyclists may have with current navigation systems and create a seamless, intuitive experience so that the rider can be free to pay attention, explore, think - before the journey even begins - minimizing user input requirements while maximizing directive-type and confirmation-type feedback information.  

 Questions for next prototype: 

  • Are the prototypes' switches placement, functioning and purpose intuitive? 
  • Does vibrational haptic feedback make sense for a cyclist's experience? 
  • How does it feel for the user? Is there another location or mode of nonvisual, nonauditiory
  • Would a rider miss visual confirmation during the journey or is there relief being freed from checking a screen? 
  • Do the handles design feel appropriate for the task? 
  • Is having as few tap-through screens as possible during the destination-input phase seen as a positive? 


First collaborative physical handlebar interface prototypes (Sam Sadtler + Catherine Rehwinkel.) Here are our handlebar prototyping notes.  

handlebar 1st prototype.jpg
IMG_6267.JPG
cr_prototype_notes.jpg
IMG_6273.JPG
IMG_0529.JPG
IMG_6290.JPG
IMG_6292.JPG
IMG_6293.JPG

We have been using Survey Monkey to interview cyclists around CitiBike stations as well as a Google Forms survey via email to pinpoint rider needs. 


Informal Bill of Materials: 

2 x Bike handlebars

 Arduino micro

 Bluetooth LE Chip

GPS

accelerometer with compass

Hall Effects Sensor

Android phone

3D printed parts and sensors

In Physical Computing
← Fabrication Is Difficult to Do Well, or, A Trash Can Lamp. Pixelstix →

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