Hi i would like to connect RFID(which i already did and working),when some one attached RFID card to RFID reader, then arduino send request throw ethernet to known webserver(which i have to develop by PHP) to check this person allowed to enter or not.
i dont want to put each RFID No in the arduino memory this is different project.(beacause i want to deduct money from people accunt which they bought and charged this card by paypal, somthing like as oyster card(travel card) in uk)
Does this possible?
masoudr:
Does this possible?
Yes.
Use Examples->Ethernet->WebClient as a starting point. Add the RFID code. Send the RFID ID in the webserver request to your PHP server. Send back an HTTP response the Arduino can recognize to indicate if the door should be unlocked or not. Do billing on the PHP server.
Thank you very much for your help, i will start work on it