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emsec / ChameleonMini

The ChameleonMini is a versatile contactless smartcard emulator compliant to NFC. The ChameleonMini was developed by https://kasper-oswald.de. The device is available at https://shop.kasper.it. For further information see the Getting Started Page https://rawgit.com/emsec/ChameleonMini/master/Doc/Doxygen/html/_page__getting_started.html or the Wiki tab above.
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Reader distance #213

Open ph553 opened 5 years ago

ph553 commented 5 years ago

Hello again I noticed mifare ultralight emulation(i dont know about lifare classic yet since i have nothing to test it with) does not work very well when the chameleon is too close to the reader. I read in other issues that the reader has to be at a 1cm distance from the chameleon. I would like to know

  1. Is there something on my end i could do to make it more reliable at shorter distances
  2. Won't that be a problem for reader that has a "slot-in" type where you have to insert the chameleon in a slot for it to be read? Again thank you and I am sorry if I ask alot of questions
geo-rg commented 5 years ago

Hi @ph553 first of all: there's no need to apologize for asking questions :)

  1. We do not know what causes this problem. So the only thing you could do would be testing and providing more information about in which cases (which reader, different positions, etc.) this happens.
  2. Every reader is different. We never had problems with this type of reader.
ph553 commented 5 years ago

So i have the 3d printed case, however i suspect the 3d printer at my school doesn't work well since the chameleon didn't fit perfectly in the case: only the bottom side(where there the case isn't flat) fits. When i put the chameleon on the reader with no distance between both(the case is blue, i will refer to it as blue side), red side down, nothing happens However if I distance the chameleon from the reader, it works fine. I haven't checked the logs yet It's the reader from the local metro station referenced at #214