Ethernet Shield with RFID 522

Projects Networking, Protocols, and Devices
1

Hi there

I have managed to get the official Ethernet Shield + SD card (v2) working (connecting etc), and the RFID522 working (read and dump RFID card data) on 2 separate Uno's R3. Once I combine the two I experience difficulties. Has anyone managed to combine the RFID (serial, I used pins 11, 12, 13 and 2, 3) with the Ethernet Shield + SD card?

UNO R3 x 2 are original Arduino's
Ethernet Shield + SD card (v2) is original Arduino
RFID522 is not original

If more information is needed feel free to ask me. This is my first posting to a hardware forum.

2

Apologies for the above post. For the RFID, I tried using pins 6 and 7, rather than 3 and 4 (took inspiration from this Bahri Meriç Canlı on Instagram: "Arduino Uno + Ethernet Shield + RFID RC522") and now everything works as it should.