2017년 5월 29일 월요일

Can the NFC antenna of smart phone read signals from (active) RFID tags/transmitters


Can the NFC antenna of mobile phone such as the Galaxy S4 or iPhone in addition to their NFC functionality, also be used to read signals from (active) RFID tags/transmitters e.g. from 20ft away not 20cms?

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No. By default you can't do this, due to different principles of work and hardware chips. As I mentioned earlier my answer on Physics.SE clarify this.
About other possibilities, there were some projects, that provide external abilities, like Touchtag, which was on a market since 2008 to 2012. I think you can use same idea and then redirect data to audio or usb port. Then you will be need an application, to analyse incoming data.
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