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RFID USB reading junk — Parallax Forums

RFID USB reading junk

Luis_PLuis_P Posts: 246
in Accessories
Hello Parallax!
My RFID USB reader is working however every 5 minutes or so reads some garbage number without me scanning anything. The number are like "B00000700B".
why that is happening? radio-frequency interference? BTW we are next to the airport...
Thanks for your help.

https://www.parallax.com/product/28340

Comments

  • PublisonPublison Posts: 12,366
    You will need to post your code and a picture/schematic of your setup to get a proper response.
  • Chris SavageChris Savage Parallax Engineering Posts: 14,406
    I suppose if you're near a source of RF interference it is possible that you're getting some noise that is causing false reads. An airport seems like a highly RF noisy environment. Still, the protocol for the reader should typically minimize false reads. Must be excessive to get that.
  • kwinnkwinn Posts: 8,697
    Luis_P wrote: »
    Hello Parallax!
    My RFID USB reader is working however every 5 minutes or so reads some garbage number without me scanning anything. The number are like "B00000700B".
    why that is happening? radio-frequency interference? BTW we are next to the airport...
    Thanks for your help.

    https://www.parallax.com/product/28340

    It could be due to the airport radar. Had a similar problem (although much less frequent) with a computer that was about a KM from the airport. No way to be absolutely sure it was the radar, but shielding the wall between the computer and airport did eliminate the problem. Maybe you can try something similar.
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