RFID module several meters from Arduino


I am developing an access control project and I wanted to implement a system using cards and RFID reader.

I have an Arduino MEGA2560 and an RFID-RC522 reader.

The system is working properly, but I am interested in placing the RFID module several metres away from the Arduino. 6 meters, specifically.

I tried to connect it with two telephone cables I had at home (4 wires each) and it doesn't work.

How could I do it?

Thank you!

Place a Nano next to the RFID, and an RF485 serial link to communicate with one of the serial ports on your Mega.

Simplifies the cabling too!

Like the other guy said on your cross-language post - I think ... :astonished:


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