Hallo
I ask you for help because I start, I'm looking and I can not find it. I've got to do a project in which RC522 touch the card and on the website displays the card number. Combines and nothing works. Please improve the code, I did something like this:
/*
Web ServerA simple web server that shows the value of the analog input pins.
using an Arduino Wiznet Ethernet shield.Circuit:
- Ethernet shield attached to pins 10, 11, 12, 13
- Analog inputs attached to pins A0 through A5 (optional)
created 18 Dec 2009
by David A. Mellis
modified 9 Apr 2012
by Tom Igoe
modified 02 Sept 2015
by Arturo Guadalupi*/
#include <SPI.h>
#include <MFRC522.h>
#include <Ethernet.h>// Enter a MAC address and IP address for your controller below.
// The IP address will be dependent on your local network:
byte mac[] = {
0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED
};
IPAddress ip(192, 168, 0, 177);// Initialize the Ethernet server library
// with the IP address and port you want to use
// (port 80 is default for HTTP):
EthernetServer server(80);
#define SS_PIN 7
#define RST_PIN 6
MFRC522 mfrc522(SS_PIN, RST_PIN); // Create MFRC522 instance.
byte readCard[4];
String rfidUid = "";
String kartaauth1="9bd37725"; // deklaracja autoryzowanej kartyvoid setup() {
// Open serial communications and wait for port to open:
Serial.begin(9600);
SPI.begin(); // Init SPI bus
mfrc522.PCD_Init(); // Init MFRC522 card
Serial.println("Scan PICC to see UID and type...");
pinMode(3, OUTPUT);
pinMode(4, OUTPUT);
while (!Serial) {
; // wait for serial port to connect. Needed for native USB port only}
// start the Ethernet connection and the server:
Ethernet.begin(mac, ip);
server.begin();
Serial.print("server is at ");
Serial.println(Ethernet.localIP());
}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));
}// listen for incoming clients
EthernetClient client = server.available();
if (client) {
Serial.println("new client");
// an http request ends with a blank line
boolean currentLineIsBlank = true;
while (client.connected()) {
if (client.available()) {
char c = client.read();
Serial.write(c);
// if you've gotten to the end of the line (received a newline
// character) and the line is blank, the http request has ended,
// so you can send a replyif (c == '\n' && currentLineIsBlank) {
// send a standard http response header
client.println("HTTP/1.1 200 OK");
client.println("Content-Type: text/html");
client.println("Connection: close"); // the connection will be closed after completion of the response
client.println("Refresh: 5"); // refresh the page automatically every 5 sec
client.println();
client.println("");
client.println("");
// output the value of each analog input pinclient.println("");
break;
}
if (c == '\n') {
// you're starting a new line
currentLineIsBlank = true;
} else if (c != '\r') {
// you've gotten a character on the current line
currentLineIsBlank = false;
}
}}
}
// give the web browser time to receive the data
delay(100);
// close the connection:
client.stop();
Serial.println("client disconnected");
Ethernet.maintain();
}