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

    From 2013-2015 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
    Circuits and Code

    simple heat circuit


    You can make a simpler heat controlling circuit using TIP122 transistor.
    The above image is the schematic. If you want to control a lot of heat lines, you can use shift register between arduino and input pin of TIP122.
    This method is not good if you turn on/off the heat in high frequency. TIP122 will heat up and eventually break if you do so. Also, TIP122 is for 1A max. So, if you are letting through a lot of current, it is better to use this circuit instead.
    The schematic says 3-9V for the heat power supply. This is just an example. If the current that goes through TIP122 does not exceed 1A, you can use bigger voltage (or smaller voltage)

    The below image is the example of how to connect. Please note that the LED is just an indicator. If you do not need an indicator, please take it away.

    3 Comments so far

    1. Week 11: Thermochromic Ink | Computational Craft on April 18th, 2013

      […] Simple Heat Circuit from Plusea […]

    2. JIM on May 30th, 2014

      hi aim trying to build myself a simple heat mantle control or a control for my heat tape. can you please explain one without a arduino. is it possible to place a temp screen for digital readout? thank you for placing the hove illustration as this makes it easier for me to understand what I’m looking at

    3. Wesley on January 15th, 2015

      what to use instead of a tip122

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