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BlogsAsk The Experts ForumCan Passive RFID Be Used as a Reed Switch or Proximity Sensor?

Can Passive RFID Be Used as a Reed Switch or Proximity Sensor?

Posted By RFID Journal, 04.18.2016

Is it possible to program a reader to trigger an action if a tag is interrogated?

—Ravi

———

Ravi,

You can attach a tag to an object and use it to trigger a switch or detect an item's presence. When the tag is read, the object is clearly within range of the reader, so its presence has been detected. Most readers have input-output ports, so you can program a reader to trigger an action if a tag is interrogated. For example, you could have a diverter connected to a reader on a conveyor, and the diverter could activate when certain tags were read, but not others.

—Mark Roberti, Founder and Editor, RFID Journal

USER COMMENTS

jay brown 2016-05-10 12:39:30 AM
Hello Mr. Roberti, would this also be true if we wanted to attach a Passive RFID tag to an object. So when its in proximity (less than 1ft), it can trigger the Reader that would be connected to a RF transceiver and tell it what frequency to sync too? I'd appreciate the help, I have tons of questions.

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