Hi. I already made a simple RFID Card Reader with my Arduino UNO and MIFARE RC522. I also got it working with my Custom Time Attendance System by reading the serial output of the Arduino after reading the card. Now I'm looking at expanding this by attaching an SD Card Module to make it as a standalo…

Arduino UNO with MIFARE RC522 and SD Card Reader module

niq_ro December 21, 2016, 11:02am 13

I try with 330R resistor between MISO Arduino and MISO SD and works.. best regards...

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