I Built an RFID “Disruptor”: Confuses Readers & Destroys Tags

I’ve worked with the PN532 before. The first version of NullTag actually worked. It could read cards, clone some tags, dump memory — the usual stuff. But deep down I…

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NullTag: My Accidental RFID Toolkit Built on ESP32

 👋 Introduction Hey folks, welcome back. Today I’m showing you something that started as a small experiment, and kind of turned into its own project. I originally wanted to…

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