Lumicard is a stand for electronic postcards. Users can draw or write something on a postcard with an electronic tag and send it to people. People can also keep a sensor at home that sends awareness information to the tagged postcard.
Source: Tollmar, K. and Persson, J. 2002. Understanding remote presence. In Proceedings of the 2nd Nordic Conference on Human-Computer Interaction (NordiCHI’02). ACM Press, 41–50.
