References
  1. Gaver, B., Dunne, T., & Pacenti, E. (1999). Design: cultural probes. interactions, 6(1), 21-29.

  2. Johnson, J., & Henderson, A. (2002). Conceptual models: begin by designing what to design. interactions, 9(1), 25-32.

  3. Löwgren, J. (2006). Articulating the use qualities of digital designs. Aesthetic computing, 383-403.

  4. Bakker, S., Antle, A.N. & van den Hoven, E. Embodied metaphors in tangible interaction design. Pers Ubiquit Comput 16, 433–449 (2012). https://doi.org/10.1007/s00779-011-0410-4

  5. Scott Fitzgerald and Michael Shiloh: THE ARDUINO PROJECTS BOOK. Published September 2012 by Arduino LLC.