Arduino RFID Attendance System.
Learn how to create your own RFID Attendance System using Arduino in this step-by-step tutorial. The system allows you to track and manage attendance effortlessly with the help of RFID technology. This project is perfect for schools, offices, or any organization looking to automate attendance processes.
Item required-
Arduino 1x
RFID card 1x
LCD display 1x
Breadboard 1x
Jumper wire 10x
Circuit Digram.
Arduino Code.
#include <SPI.h>
#include <MFRC522.h>
#include <Wire.h>
#include <LiquidCrystal_I2C.h>
#define SS_PIN 10
#define RST_PIN 9
MFRC522 mfrc522(SS_PIN, RST_PIN); // Create MFRC522 instance
// Valid UIDs of students
byte validUIDs[][4] = {
{0xAA, 0x10, 0x43, 0x02}, // UID of student 1
{0x73, 0x51, 0x28, 0xFC}, // UID of student 2
{0x12, 0x34, 0x56, 0x78}, // UID of student 3
{0xAB, 0xCD, 0xEF, 0x12}, // UID of student 4
};
// Student names
const char* studentNames[] = {
"Anubhav umrao", // Name of student 1
"Vaibhav umrao", // Name of student 2
"Niteesh umrao", // Name of student 3
"Mayank umrao", // Name of student 4
};
// LCD I2C display
LiquidCrystal_I2C lcd(0x27, 16, 2); // Adjust the address and size according to your display
void setup() {
Serial.begin(9600); // Initialize serial communication
SPI.begin(); // Initiate SPI bus
mfrc522.PCD_Init(); // Initiate MFRC522
lcd.begin(16, 2); // Initialize the LCD display
lcd.init();
lcd.backlight(); // Turn on the backlight
lcd.clear();
lcd.setCursor(2, 0);
lcd.print("Scan ID card");
Serial.println("Ready to read RFID cards");
}
void loop() {
// Look for new cards
if (mfrc522.PICC_IsNewCardPresent()) {
if (mfrc522.PICC_ReadCardSerial()) {
// Show UID on serial monitor
Serial.print("UID tag: ");
for (byte i = 0; i < mfrc522.uid.size; i++) {
Serial.print("0x");
if (mfrc522.uid.uidByte[i] < 0x10) Serial.print("0");
Serial.print(mfrc522.uid.uidByte[i], HEX);
if (i < mfrc522.uid.size - 1) Serial.print(", ");
}
Serial.println();
Serial.print("UID Number: ");
String content = "";
byte letter;
for (byte i = 0; i < mfrc522.uid.size; i++) {
content.concat(String(mfrc522.uid.uidByte[i] < 0x10 ? "0" : ""));
content.concat(String(mfrc522.uid.uidByte[i], HEX));
}
content.toUpperCase();
Serial.println(content);
// Check if the UID matches any of the valid UIDs
bool uidMatched = false;
int studentIndex = -1;
for (int i = 0; i < sizeof(validUIDs) / sizeof(validUIDs[0]); i++) {
if (memcmp(mfrc522.uid.uidByte, validUIDs[i], mfrc522.uid.size) == 0) {
uidMatched = true;
studentIndex = i;
break;
}
}
// Perform actions based on UID match
if (uidMatched) {
// UID matches, perform attendance action for the corresponding student
// Update the attendance status in the database
// Example: Update the attendance status for student studentIndex+1 to "Present"
updateAttendance(studentIndex + 1, "Present");
delay(3000); // Display attendance status for 3 seconds
} else {
// UID doesn't match, perform other actions (e.g., display error message)
lcd.clear();
lcd.setCursor(0, 0);
lcd.print("ID doesn't match");
delay(2000);
}
// Clear the LCD display and reset for the next scan
lcd.clear();
lcd.setCursor(2, 0);
lcd.print("Scan ID card");
delay(1000); // Delay to avoid reading the card multiple times in a short period
}
mfrc522.PICC_HaltA(); // Stop reading
mfrc522.PCD_StopCrypto1(); // Stop encryption on PCD
}
}
// Function to update attendance in the database
void updateAttendance(int studentID, const char* status) {
// Implement your code to update the attendance status in the database
// based on the studentID and status parameters
// Display the name of the student on the LCD
lcd.clear();
lcd.setCursor(0, 0);
lcd.print(studentNames[studentID - 1]); // -1 to adjust for array indexing
lcd.setCursor(0, 1); // Set cursor to the second line
lcd.print("~");
lcd.setCursor(2, 1); // Set cursor position after 4 pixels
lcd.print(status);
}
Tags.
#arduino
#arduinoproject
#rfid
#RfidAttendancesystem
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