Heatit is an open-source electronics platform to precisely output high current.

It is based on the Arduino IDE and very simple to use:
Heatit.pins[0].setCurrent(400); // set current to 400 mA on pin 0


Heatit is coming!

We are just about to the send the rewards to the Kickstarter community. Soon, we will run a new batch
-- please fill out the form if you are interested in joining to the next order.

Pre-Order Heatit

Heatit Specs


Heatit is an open-source electronics platform to precisely outputs high current. You can use Heatit to develop projects and fabricate prototypes using dynamic materials that require current or heat to be activated – such as nitinol, resistive heating, thermochromic inks, solenoids and much more. The small size and modularity of Heatit boards allow easy integration within a wide range of static, mobile and wearable applications. Heatit also features 5V IO-s to support sophisticated interaction. The heart of Heatit is an Atmega32U4 microcontroller, it is compatible with the Arduino IDE and very easy to use. With the design and aesthetics of Heatit we enable creative minds to develop their prototypes one step further, to potential products. We encourage the integration of the open-source 2/3D Heatit models both functionally and aesthetically into the digital fabrication process such as laser-cutters, 3D printers and CNC machines.


  • 8 Heatit pins
  • each Heatit pin with upto 400mA output in a total of 2A; approximately 20mA precision
  • 4x 5V analog IO
  • 2x 5V digital IO -- RX / TX
  • based on the Arduino IDE
  • SPI interfaces - one for programming, one for communication (dedicated SS)
  • runs form 6...16V

  • Getting Started

  • Heatit is running on the wonderfulArduino IDE. If you don't know Arduino, familiarize yourself with it first.
  • Download and run the installation package that inserts Heatit to the core Arduino library OR download the modfied Arduino.
  • Check our Tutorials for proper usage.
  • Warning! Objects may get really hot, make sure you don't burn yourself / your spot! Use with caution.
  • Visit ourYouTube Channel

  • Heatit Syntax -- Heatit "blinking"

    #include <Heatit.h> // call the Heatit library in the very beginning of your code
            void setup(){
                Heatit.setup(); //Initialize the Heatit library
            void loop(){
                Heatit.pins[0].setCurrent(300); //set Heatit pin 0 to 300mA
                Heatit.pins[0].setCurrent(0); //set Heatit pin 0 to 0mA (disable)

    You can check out the Heatit Library onGitHub
    If you are interested in contributing to the Heatit Library Development, please e-mail us at hello @ heatit.cc .


    Heatit Tutorials

    Click on the tutorial to learn more. We recommend to start with the Electric Current.

    Electric Current

    Resistive heating


    Driving solenoids

    5V inouts

    & Check ourYouTube Channel


    - Heatit asFritzing
    - Heatit asSVG(Vector graphic)
    -Heatit packageor visit ourgithub repoto integrate Heatit to your existing Arduino
    -Heatit schematics

    We are continiously expanding our database with useful downloads to support easy integration. If you have any special inquiry, please let us know


    We would love to hear from you! Please e-mail us at hello@heatit°cc
    Heatit is located in Brookyln, NY, in the Pfizer Building, in the wonderful space of Brooklyn Research.

    Our Team

    Eszter Ozsvald
    Eszter Ozsvald  is the co-founder of Heatit, she is an industrial designer / mechatronics engineer from Hungary. She holds a Master’s Degree from NYU’s ITP. In the last several years she has been working on tangible interfaces (http://notchdevice.com, http://symbioos.com), open-source hardware design (http://heatit.cc) and robotics. More at eszterozsvald.com
    Sue Ngo
    Sue Ngo  is a Brooklyn based Interaction Designer and Technologist. In her work, she explores the intersection of technology and art to create compelling multimedia projects. She has been immersing herself in the wearables community, teaching classes at Parsons Design and Technology, 3rd Ward, Death for Audio and Ventana244. Her work has been featured most notably on Anderson Cooper 360 as well as Huffington Post, WNYC, Core77, Creator’s Project and Fast Company. She is a graduate of NYU's Interactive Telecommunications Program.
    Kart Ojavee
    Kärt Ojavee  is a designer and a researcher from Estonia. She has been working on active and interactive textiles since 2004. Currently she is working on interactive textiles for waiting rooms collaboratively with the Centre for Biorobotics. The focus in her textile designs is on patterns and new approaches on materials. She is developing dynamic solutions with an unexpected knack and simplicity. Since autumn 2010 she is also a guest docent at the Estonian Academy of Arts, Textile Department. She has been participating exhibitions and had solo shows in Estonia and abroad (Munich, Helsinki, Shanghai, Stockholm, London, Philadelphia etc.)

    A very special thanks to hardware developers Ernő Hettinger, Bence Kovács for their contribution.
    A special thanks to Stepan Boltalin and Paola Guimerans for their help.

    Press & Sponsors

    Special thanks to our supporters:

    Charles Alvis, Nilton Lessa, Tycoonafish, Ted Holbrook, Oliver Bogler, Jonny, Patrick Jordan-Smith, Craig Dunn, Daniel A Greenspun, Daniel Ceperley, Ian Sustrik, Ted Hayes, Tavares Ford, Steve Presley, Jose Chenu, Omar Stradella, Eric, yoni, Niraj Jha, Shane, Martin Drenovac, 6apcyk, Iain Waugh, mcsporran, Dan Ormella, Michael Kellner, David Wilton, Chris, Red Dutchman, Nathaniel Burge, pezmanlou, Michael Edgcumbe, Nora Gerle, Jack Kalish, Ash Ravikumar, Andrew Barber, kuhbuckelstudios, Radosław Nielek, Eric Johnfelt, Matt Conlen, Brendan Regan, Gavin Smith, Susan Sutton, Sebastian Buys, noteforsteve, Alex Barclay, ChapmanGrady, Katherine Moriwaki, John Thornton, Mindy Tchieu, Michele Perini, Paul McMillan, Back, INNOcrave, Ramon Aguero, Sabine Seymour, Kurt Arnlund, Andy Hendrickson, Mo