Hi...I am currently creating an access control system for my project and have the RFID reader and keypad working together to open a door. however, i would like to store the RFID tag numbers and the time they scan on an SD card but can't figure out how to wire up the RFID and SD card module to an Arduino Mega! any help advice on which pins go where would be much appreciated?
can't figure out how to wire up the RFID and SD card module to an Arduino Mega!
This would be the RFID that you "have the RFID reader and keypad working together"?
SD cards are read from/written to using SPI. The Mega SPI pins are 50 to 53.