Hi Everyone,
I am working on an RFID clocking in/out project. I am using a Mega, Adafruit NFC Shield, Adafruit SD card module and a 24x2 LCD display. I have the basic system running in that the display instructs the user to swipe their card and the code creates and then updates a csv file with identification particulars.
A bit of background; I am a math teacher in a local college and want to use this project as a simulation of industry timekeeping practices when I am teaching time and money to motor vehicle and engineering students (low level ability so value visual and physical interaction).
I want to have my mifare tag ids on a file stored on the SD card in order that I can update/add id tags easily without delving into Arduino code all of the time. When a card is swiped, I want the arduino to interrogate said file for id tag to confirm the user is registered and then display the users id number (student badge number) or user unknown if not registered card.
I have looked in a lot of websites and blogs on the internet and a lot of kindle books and instructables etc but it seems to state this can be done (very easily apparently) but I have not seen any examples; all tag ids seem to be input into Arduino sketch. Is there anyone who could point me towards a project utilising this approach (RFID door access project or a particular Arduino book perhaps? ) or know how to do this and would be willing to give me some insight?
I want to keep system simple so no processing code (very, very new to electronics/arduino game so not ready to learn multiple programming concepts just yet).
Grateful for any assistance in this matter.
Kind Regards
John
