4 ms·

but how does it work? I imagine it requires sophisticated software on the receiving side? (and thus they can give away the 3D designs and still profit by sellin

• wizzwizz4 6y ago
  Here's the Washington Uni CS department website about it: https://printedwifi.cs.washington.edu/ https://printedwifi.cs.washington.edu/
• avs733 6y ago
  if I am reading this correctly, and this is likely a simplification, -you build an RFID tag and embed it in a product -the tag is unreadable until a certain condition is met -once the condition is met, the tag becomes readable -a reader device (cell phone?) notices the new tag -using [some code] the readability of the tag is used to execute an action such as reordering a product
• convolvatron 6y ago
  they...are grad students who get a stipend from the university to TA classes and measure their success by number and quality of papers published?
  • deleted 6y ago
    [deleted]
• waterheater 6y ago
  They're further blurring the line we've created between hardware and software. The hardware captures energy and sends out a signal which can be interpreted by a computer. A key principle these groups leverage is backscatter (mentioned in the article). You send on a specific carrier wave frequency. The receiving device downshifts the frequency, storing the difference in frequency as energy. That harvested energy is used for computation, and a response is "reflected" back on a lower-frequency carrier wave frequency. SATURN [1] is one of the best examples of how "ubiquitous computing" may create new paradigms in computing though clever hardware engineering. [1] https://www.sigmobile.org/grav/research-highlight/saturn https://www.sigmobile.org/grav/research-highlight/saturn