HOW TO GET WHAT YOU WANT

ATtiny Drawdio Bracelet

This bracelet is basically a wearable continuity meter that translates the electrical resistance between two fingers into sound.

Circuit diagram and legend of parts:

Circuit layout – layers:

Updated circuit layout used during the workshop (to accommodate different speaker):
(coming soon….)

Code

>> https://github.com/plusea/CODE/tree/master/WORKSHOP%20CODE/ARS/a_tinyDrawdioBracelet_sound

Materials and Parts

Materials:

* Copper adhesive sheets >> http://www.kobakant.at/DIY/?p=2176
* Kapton film
* Karl-Grimm copper thread
* Silverized lycra conductive fabric
* Fake leather
* Thick cotton thread
* Metal snap fasteners (poppers)
* Silhouette tattoo paper

Parts:

* ATtiny45 microcontroler >> http://at.rs-online.com/web/p/mikrocontroller/6962614/
* Speaker
(* alternative: sewable piezo speaker CMT 1603 >> http://www.digikey.com/product-detail/en/CMT-1603-SMT-TR/102-1193-1-ND/504822)
* CR2032 3V coin-cell battery
* 1.5 M Ohm resistors

Tools

* Large eye not-sharp sewing needles (for thick cotton thread)
* Medium eye sewing needles (for conductive thread)
* Scissors
* Iron
* Soldering iron
* Wire cutters and strippers
* Hole punch
* Snap press tool
* Silhouette vinylcutter

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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