Electronics « Mathematical Science & Technologies
Passive HF (13.56MHz, RFID/NFC), Reads @ max 20mm: (1) RC-522 Module + S50 Card & KeyFob £1.94 or £4 (with chip manuals) (instructable here); or KS-204 at £5.19 (2) Reads @ max 50mm for UNO R3 (PN532), £13; Passive UHF (860-925 MHz) Chip (IC): ThingMagic M6E-NANO (surface mount) $125 with multi-tag read capability. (ThingMagic was a brand ...
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