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    Content by Mika Satomi and Hannah Perner-Wilson
    The following institutions have funded our research and supported our work:

    From 2013-2014 Mika is 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
    Power

    Sewable 3.3V Regulator

    Regulators are simple and cheap way to create 5v or 3.3v (or any desired voltage if it is made for it)
    Often when you use a microcontrollers (i.e. arduino) or a wireless communication module (i.e. xbee, bluetooth), you need to supply exact voltage the device requires. This is an example of sewable 3.3v regulator and 9V battery pouch with sewable 3.3v regulator.

      

    Materials:
    3.3v regulator (LD1117V33) *
    capacitor 10uF  
    capacitor 0.1uF 

    * There are many different kind of 3.3v regulators. You do not have to stick with this one in the example. Although, when you get different ones, make sure the pin configuration is fitting to the connection on the battery pouch. (you may need to make a modification on the pouch connection) 

    Tools:
    soldering iron
    plier
     

    Step 1:
     split and bend the 3.3 regulator’s legs. make a little loop at the end of each regulator’s legs using plier.
       

    Step 2:
    solder the capacitors’ legs to regulator.
    insert connection schematics
       

    Now you can use the little loop on each leg to sew it on fabrics. You can make 9V battery pouch to integrate it.
    When making the pouch, make sure to not to use conductive thread as connection. It has too high resistance and I had problem supplying enough current. 

    Schematics:
     

    This can be sewed onto a neoprene 9V Battery Pouch. For this construction, please check detailed plan and stencil PDF.

    1 Comment so far

    1. shujon on June 21st, 2011

      Thanks a lot………
      Please post some popular circuit diagram.

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