👉 How to Make an RFID-Based Attendance System with ESP32 & Google Sheets | Best IoT Project

👉 How to Make an RFID-Based Attendance System with ESP32 & Google Sheets | Best IoT Project The IoT-Based Smart RFID Attendance Management System is an automated attendance monitoring system developed using ESP32, RFID (RC522), I2C LCD, buzzer, Google Sheets, and Google Apps Script. The system identifies trainees or employees using their unique RFID cards and automatically records their attendance details such as name, UID, date, check-in time, check-out time, worked time, attendance status, and early-exit attempts. The ESP32 sends the attendance data through Wi-Fi to Google Sheets, providing real-time and centralized attendance management. The system also checks the minimum required working time and automatically identifies early checkout attempts. Attendance reports can be generated and sent through email, reducing manual work and improving accuracy and transparency. Key Features: RFID-based identification Automatic check-in and check-out Minimum working-time verification Early-exit detection LCD status display Buzzer indications Google Sheets cloud-based data storage Automatic attendance reports Email notification Duplicate-scan protection Real-time IoT-based monitoring Social media Instagram: @circuitandwonders #circuitandwonders #circuit&wonders