Smart RFID Attendance

 

 

//*******************************Program********************************

//*******************************libraries********************************

//RFID-----------------------------

#include

#include

//NodeMCU--------------------------

#include

#include

//************************************************************************

#define SS_PIN  D2  //D2

#define RST_PIN D1  //D1

//************************************************************************

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

 

//************************************************************************

/* Set these to your desired credentials. */

const char *ssid = "BINTANG TERANG";

const char *password = "1sampai8";

const char* device_token  = "79f4c9f0c7eb0973";

//************************************************************************

// Sertifikat Root CA (Root certificate yang digunakan untuk validasi SSL)

const char IRG_Root_X1 [] PROGMEM = R"CERT(

-----BEGIN CERTIFICATE-----

MIIDvzCCA0SgAwIBAgISBEE32ONerKlFUrP7J5GT+RVfMAoGCCqGSM49BAMDMDIx

CzAJBgNVBAYTAlVTMRYwFAYDVQQKEw1MZXQncyBFbmNyeXB0MQswCQYDVQQDEwJF

NTAeFw0yNTAyMTMwMzU3NTVaFw0yNTA1MTQwMzU3NTRaMB4xHDAaBgNVBAMTE2Jp

bnRhbmd0ZXJhbmcub3IuaWQwdjAQBgcqhkjOPQIBBgUrgQQAIgNiAATx8VTVVt/O

0nyhpbaz8HEu8sSiXDofyVk2eYU2Jt3FfTo1vkv3FEdIB1bzWeQsqaQGIJb+UDRT

Dzvlw0MEdk3K5RSdUOqV9DPfX6v434CssRzP9XWgsjHmxRb5Lc/uuSCjggIvMIIC

KzAOBgNVHQ8BAf8EBAMCB4AwHQYDVR0lBBYwFAYIKwYBBQUHAwEGCCsGAQUFBwMC

MAwGA1UdEwEB/wQCMAAwHQYDVR0OBBYEFLplWVMz2AD8VtV52iPPxNQQmDq1MB8G

A1UdIwQYMBaAFJ8rX888IU+dBLftKyzExnCL0tcNMFUGCCsGAQUFBwEBBEkwRzAh

BggrBgEFBQcwAYYVaHR0cDovL2U1Lm8ubGVuY3Iub3JnMCIGCCsGAQUFBzAChhZo

dHRwOi8vZTUuaS5sZW5jci5vcmcvMDcGA1UdEQQwMC6CE2JpbnRhbmd0ZXJhbmcu

b3IuaWSCF3d3dy5iaW50YW5ndGVyYW5nLm9yLmlkMBMGA1UdIAQMMAowCAYGZ4EM

AQIBMIIBBQYKKwYBBAHWeQIEAgSB9gSB8wDxAHYAzPsPaoVxCWX+lZtTzumyfCLp

hVwNl422qX5UwP5MDbAAAAGU/apU6wAABAMARzBFAiALIK8OdclSSGi0eaFn+G1P

3gMaRLZwktYRNsLNXuUXUAIhAKl2tayqr+vXI4M/pUPo5U5NHwWZZTGYJ1vZEbhU

8H8RAHcAouMK5EXvva2bfjjtR2d3U9eCW4SU1yteGyzEuVCkR+cAAAGU/apU7wAA

BAMASDBGAiEAsUxp87ZU11iBghbkHof/Z6N4+Q+OcPq/g5ac3pAUWkQCIQCSUUhs

9Aj3CfDgST2lpW07I05s2v4Bf/ArDjpMl3Yr3zAKBggqhkjOPQQDAwNpADBmAjEA

gHStbdMlEPpXUCMr0NvEvuyWP6M1j+LkI9tKXcln/QMTDSlvlOgHgBE9rAHix74i

AjEA2Bgw440A0HkxsXvEEm5XXet84utjTGu2wwTtNxmgse9M0EVqQZtESgubVPwH

4KtC

-----END CERTIFICATE-----

)CERT";

 

//************************************************************************

String URL = "https://bintangterang.or.id/url/2/getdata.php"; //computer IP or the server domain

String getData, Link;

String OldCardID = "";

unsigned long previousMillis = 0;

//************************************************************************

void setup() {

  delay(1000);

  Serial.begin(115200);

  SPI.begin();  // Init SPI bus

  mfrc522.PCD_Init(); // Init MFRC522 card

  //---------------------------------------------

  connectToWiFi();

}

//************************************************************************

void loop() {

  //check if there's a connection to Wi-Fi or not

  if(!WiFi.isConnected()){

    connectToWiFi();    //Retry to connect to Wi-Fi

  }

  //---------------------------------------------

  if (millis() - previousMillis >= 15000) {

    previousMillis = millis();

    OldCardID = "";  // Reset old card ID every 15 seconds

  }

  delay(50);

  //---------------------------------------------

  //look for new card

  if ( ! mfrc522.PICC_IsNewCardPresent()) {

    return;  // If no card is present, restart the loop

  }

  // Select one of the cards

  if ( ! mfrc522.PICC_ReadCardSerial()) {

    return;  // If unable to read the card, restart the loop

  }

  String CardID = "";

  for (byte i = 0; i < mfrc522.uid.size; i++) {

    CardID += String(mfrc522.uid.uidByte[i], HEX);  // Convert to Hex string for consistency

  }

  //---------------------------------------------

  if( CardID == OldCardID ){

    return;  // If same card is detected, skip sending data

  }

  else{

    OldCardID = CardID;  // Update OldCardID to the current one

  }

  //---------------------------------------------

//  Serial.println(CardID);

  SendCardID(CardID);

  delay(1000);  // Short delay to prevent rapid re-triggering

}

//************send the Card UID to the website*************

void SendCardID(String Card_uid) {

  Serial.println("Sending the Card ID");

  if (WiFi.isConnected()) {

    WiFiClientSecure client;  // Create a secure Wi-Fi client for HTTPS

 

    client.setInsecure();  // Disable SSL certificate verification (for testing purposes)

    HTTPClient https;

 

    getData = "?card_uid=" + String(Card_uid) + "&device_token=" + String(device_token);

    Link = URL + getData;

 

    https.begin(client, Link);  // Use the correct client variable here

    int httpCode = https.GET();

    String payload = https.getString();

 

    Serial.println(Link);

    Serial.println(httpCode);

    Serial.println(Card_uid);

    Serial.println(payload);

 

    if (httpCode == 200) {

      if (payload.startsWith("login")) {

        Serial.println("Login: " + payload.substring(5));

      } else if (payload.startsWith("logout")) {

        Serial.println("Logout: " + payload.substring(6));

      }

    } else {

      Serial.println("HTTPS request failed");

    }

    https.end();

  }

}

 

//********************connect to the WiFi******************

void connectToWiFi(){

  WiFi.mode(WIFI_OFF);        //Prevents reconnection issue (taking too long to connect)

  delay(1000);

  WiFi.mode(WIFI_STA);

  Serial.print("Connecting to ");

  Serial.println(ssid);

  WiFi.begin(ssid, password);

 

  unsigned long startAttemptTime = millis();

 

  while (WiFi.status() != WL_CONNECTED && millis() - startAttemptTime < 30000) {

    delay(500);

    Serial.print(".");

  }

 

  if (WiFi.status() == WL_CONNECTED) {

    Serial.println("");

    Serial.println("Connected");

    Serial.print("IP address: ");

    Serial.println(WiFi.localIP());  //IP address assigned to your ESP

  }

  else {

    Serial.println("Failed to connect to Wi-Fi");

  }

}

 

Download Skema Absensi Online dengan RFID MFRC-522