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Results tagged with rfid
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user 60829
Radio-Frequency Identification. Uses electromagnetic fields to transmit data for identification purposes, such as between a tag and a reader. RFID is the precursor to Near Field Communication (NFC).
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multiple RC522 RFID on arduino yun
I was trying for one month to make multiple RC522 rfid readers work together on SPI on an arduino yun, one works fine, but if I plug 4, each with a specific slave select, only one, sometimes 2, sometimes … because I tried nanos with ethernet shields and again the shields are ignoring the Slave select and thus not working with spi multidrop, so each time I plugged the shield on nano, even not using it, rfid …
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