Rong-Hao Liang

ACM UIST 2022: ACM User Interface Software and Technology Symposium

NFCStack: Identifiable Physical Building Blocks that Support Concurrent Construction and Frictionless Interaction

Chi-Jung Lee1, Rong-Hao Liang2, Ling-Chien Yang1, Chi-Huan Chiang1, Te-Yen Wu3, Bing-Yu Chen2

National Taiwan University1, TU Eindhoven2, Dartmouth Colleague3

ACM Digital Library




In this paper, we propose NFCStack, which is a physical building block system that supports stacking and frictionless interaction and is based on near-field communication (NFC). This system con- sists of a portable station that can support and resolve the order of three types of passive identifiable stackable: bricks, boxes, and adapters. The bricks support stable and sturdy physical construc- tion, whereas the boxes support frictionless tangible interactions. The adapters provide an interface between the aforementioned two types of stackable and convert the top of a stack into a terminal for detecting interactions between NFC-tagged objects. In contrast to existing systems based on NFC or radio-frequency identification technologies, NFCStack is portable, supports simultaneous inter- actions, and resolves stacking and interaction events responsively, even when objects are not strictly aligned. Evaluation results in- dicate that the proposed system effectively supports 12 layers of rich-ID stacking with the three types of building block, even if every box is stacked with a 6-mm offset. The results also indicate possible generalized applications of the proposed system, including 2.5-dimensional construction. The interaction styles are described using several educational application examples, and the design implications of this research are explained.


NFC, building blocks, stacking, tangible interaction.

Cite this work (ACM)

Chi-Jung Lee, Rong-Hao Liang, Ling-Chien Yang, Chi-Huan Chiang, Te-Yen Wu, and Bing-Yu Chen. 2022. NFCStack: Identifiable Physical Building Blocks that Support Concurrent Construction and Frictionless Interaction. In The 35th Annual ACM Symposium on User Interface Software and Technology (UIST ’22), October 29-November 2, 2022, Bend, OR, USA. ACM, New York, NY, USA, 12 pages.

Cite this work (Bibtex)