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    Content by Mika Satomi and Hannah Perner-Wilson
    E-Textile Tailor Shop by KOBAKANT
    The following institutions have funded our research and supported our work:

    Since 2020, Hannah is guest professor of the Spiel&&Objekt Master's program at the University of Performing Arts Ernst Busch in Berlin

    From 2013-2015 Mika was a guest professor at the eLab at Kunsthochschule Berlin-Weissensee

    From July - December 2013 Hannah was a researcher at the UdK's Design Research Lab

    From 2010-2012 Mika was a guest researcher in the Smart Textiles Design Lab at The Swedish School of Textiles

    From 2009 - 2011 Hannah was a graduate student in the MIT Media Lab's High-Low Tech research group led by Leah Buechley

    In 2009 Hannah and Mika were both research fellows at the Distance Lab

    Between 2003 - 2009 Hannah and Mika were both students at Interface Cultures
    We support the Open Source Hardware movement. All our own designs published on this website are released under the Free Cultural Works definition
    Example Projects

    Sensitive Fingertips

    Intended for use by children and their piano teachers to visualize the difference between “p” piano (soft) and “f” forte (hard). The pressure sensitive layers of fabric in the fingertips of these gloves are stretchy so that they can fit tightly.

    The piezoresistive effect describes the changing electrical resistance of a material under mechanical pressure. Eeonyx coats a range of anti-static woven and non-woven fabrics in an inherently conductive polymer, giving them piezoresistive properties. By adhering two traces of stretch conductive fabric parallel to one another across the fingertip and then attaching a piece of piezoresistive stretch fabric on top of these, one is able to measure the change is resistance between the two conductive traces when pressure is applied through the piezoresistive material.

    >> Instructable
    >> Download glove stencil
    >> Download cable and connection stencil

    The sensors are made from stretch conductive fabric and Eeonyx stretchy resistive fabric, allowing for the whole glove to remain stretchy. It is connected to the Arduino via metal snaps and a fabric cable made from sewn conductive thread traces.

    The shape and layering of the fabric fingertip pressure sensors in this example project are very similar to the ones described on this site:
    >> http://www.interlinkelectronics.com/force_sensors/technologies/fsr.html

    Sensitive Fingertips was developed in collaboration with Dr. Umida Avloni, director of the Avloni Academy of Music, Dr. Jamshid Avloni from Eeonyx. This is a first working prototype and there are many things that need to be improved.

    5 Comments so far

    1. Andrew Portelli on August 1st, 2009


      I came across the ‘Sensitive Finger’ project while exploring an idea I had for a specific product that operated in a similar way to this. I’m rather excited by this for many different reasons which I would like to discuss with you at your earliest convenience.

      I have provided my personal email and I am always available.
      Thank you for your time.

    2. wendy on December 27th, 2009

      Hey Kobakants,

      Hope everything’s fine at your side of the ocean(s)!
      I’ trying out some glove models – measuring particular actions – looking closely at this tutorial you have made (by the way -> a truly exellent tute)

      I was wondering why you are using 4,7 µF capacitors in combination with the resistors?
      Is this to create a piezoresistive effect?


      Wendy from brussels

    3. admin on December 28th, 2009

      Hi Wendy!

      The capacitors are for low-pass filtering the input signals. i got the tip from a comment posted on my bend sensor instructable – look at the comments:
      >> http://www.instructables.com/id/Fabric_bend_sensor/
      there is also an instructable on the sensitive fingertips:
      >> http://www.instructables.com/id/Sensitive-Fingertips/step8/Pullup-and-low-pass-filter-circuit/
      and here the wikipedia info on low-pass filters:-)
      >> http://en.wikipedia.org/wiki/Low-pass_filter

      hope this helps!

    4. Plusea on November 11th, 2012
    5. The Gloves Project on May 5th, 2013

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