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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:

    From 2013-2015 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
    Wireless

    Data Logging

    For a different kind of “wireless” where data can be logged on the go over time and then downloaded to computer later. Sparkfun has a nice little module for logging up to three channels of sensor data for up to three hours and then spitting it out on command.

    See the following examples:
    Sensor Sleeve >> http://www.kobakant.at/DIY/?p=2542
    Broach >> http://www.kobakant.at/DIY/?p=4421

    >> More detailed documentation from the MIT Engaging Health Workshop:
    http://hlt.media.mit.edu/wiki/pmwiki.php?n=Main.ULog

    The uLog is an analog logging device that can log three channels of analog data (10 bit=1024 values) simultaneously for about 2 hours. It uses the ATtiny24 microcontroller with an AT45DB161D 16Mbit flash memory IC. It samples at 50Hz (=50 times a second).

    If there is a UART line (rx, tx) attached when you switch on or power the uLog it spits out a “?” over the serial port and waits for user input. Sending an “r” over the serial port reads all the stored (logged) data in HEX values up until the first empty (0xFFFF) value.
    Sending an “e” over the serial port erases all the memory and sets all addresses to 0xFFFF.

    USB, connecting as follows:
    FTDI —– uLog
    +3.3V —– +3.3V
    GND —– GND
    RX —– TX
    TX —– RX

    If your FTDI board is 5V you’ll need to power the uLog separately, either with the power supply you use for reading sensor data or using a volatage regular to power down the USB 5V. Still connect the GND from the FTDI to the uLog, connecting as follows (as seen in photos):
    FTDI —– uLog
    GND —– GND
    RX —– TX
    TX —– RX
    uLog —– 3.3V power supply
    +3.3V —– +3.3V
    GND —– GND

    Sparkfun uLog >> http://www.sparkfun.com/commerce/product_info.php?products_id=9228
    Sparkfun FTDI Basic Breakout – 3.3V (5V also possible) >> http://www.sparkfun.com/commerce/product_info.php?products_id=8772

    Setup for writing sensor data to memory from one (Z) analog input

    Setup for reading sensor data from memory via USB to serial port of computer



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