Despite their popularity, RFID systems are not yet as widely adopted as they could be due to their high costs. Conventional reader modules cost a few thousand dollars, measure about 6 by 6 in., weigh ...
For starters, you need a pre-wired NFC RFID module as the key hardware. NFC and RFID projects have become a huge trend, but many modules are pricey for electronics hobbyists and need a complex setup.
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