rfid.ino

#include <SPI.h>
#include <MFRC522.h>
#include <Ethernet.h>

#define RST_PIN         9          // Configurable, see typical pin layout above
#define SS_PIN          8         // Configurable, see typical pin layout above

MFRC522 mfrc522(SS_PIN, RST_PIN);  // Create MFRC522 instance

// Configuring for the internet
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
char server[] = "****";
IPAddress ip(****);
EthernetClient client;

void setup() {
	Serial.begin(9600);		// Initialize serial communications with the PC
	while (!Serial);		// Do nothing if no serial port is opened (added for Arduinos based on ATMEGA32U4)
	SPI.begin();			// Init SPI bus

 if (Ethernet.begin(mac) == 0) {
    Serial.println("Failed to configure Ethernet using DHCP");
    // try to congifure using IP address instead of DHCP:
    Ethernet.begin(mac, ip);
  }
  // give the Ethernet shield a second to initialize:
  delay(1000);
  Serial.println("connecting...");

  // if you get a connection, report back via serial:
  if (client.connect(server, 80)) {
    Serial.println("connected");
  } else {
    // if you didn't get a connection to the server:
    Serial.println("connection failed");
  }
  
	mfrc522.PCD_Init();		// Init MFRC522
	mfrc522.PCD_DumpVersionToSerial();	// Show details of PCD - MFRC522 Card Reader details
	Serial.println(F("Scan PICC to see UID, SAK, type, and data blocks..."));
}
void loop() {
	// Look for new cards
	if ( ! mfrc522.PICC_IsNewCardPresent()) {
		return;
	}

	// Select one of the cards
	if ( ! mfrc522.PICC_ReadCardSerial()) {
		return;
	}

	// Dump debug info about the card; PICC_HaltA() is automatically called
	// mfrc522.PICC_DumpToSerial(&(mfrc522.uid));
  String UID = String(mfrc522.uid.uidByte[0]) + "" + String(mfrc522.uid.uidByte[1]) + "" + String(mfrc522.uid.uidByte[2]) + "" + String(mfrc522.uid.uidByte[3]);
  // Make a HTTP request:
  client.println("GET /addtime.php?uid=" + UID + " HTTP/1.1");
  client.println("Host: ****");
  client.println("Connection: close");
  client.println();
  Serial.println(UID);
  delay(2000);
}