Hello! I would like to do a simple access control system using RFID RC-522 (thee items), Arduino Mega and Ethernet Shield. So... I have all stuff what I need, but I have troubles with connect all. I don't have any problem with one RFID and Ethernet but how I can use three RFID? I saw that a few …

Multiple RFID readers on Mega + Ethernet Shield

Projects Networking, Protocols, and Devices

system October 12, 2016, 10:55pm 14

Connect ONE RFID. Run the program. Disconnect that RFID. Connect the other one the same way (to the same SS pin). Run the program again. Post your results.

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Multiple RFID readers on Mega + Ethernet Shield

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