Here is the version 3 of RFID Attendance System using NodeMCU ESP8266 and Google. Just scan the RFID tag and the attendance data will be recorded on the Google Sheets as well as a success message will be displayed on the LCD connected to the NodeMCU. You can use this project to automate the attendance system for offices, schools and universities. I have added some new features in this project. 1. For displaying real time feedback, I have added the LCD with an I2C module. 2. I have created a very simple and easy method, to store student data on the RFID tag. 3. I have removed all the connection failed errors, By making the code more optimized. Parts Used in this Project: 1. NodeMCU - 2. RFID Reader Module - 3. 16X2 LCD with I2C Module - 4. Some RFID Tags 5. Breadboard 6. Jumper Wires Software Used in this Project: 1. Arduino IDE (Version ) 2. MFRC522 Library 3. HttpsRedirect Library 4. ESP8266 Core for Arduino IDE (Version ) -------------------------------------------------------------------------------------------------------------------- Useful Video Links -------------------------------------------------------------------------------------------------------------------- Version 1 - RFID Attendance System using NodeMCU and Google Sheets Version 2 - Advanced RFID Based Attendance System Using NodeMcu -------------------------------------------------------------------------------------------------------------------- Social Media Links -------------------------------------------------------------------------------------------------------------------- GitHub: YouTube: -------------------------------------------------------------------------------------------------------------------- Download Code -------------------------------------------------------------------------------------------------------------------- -------------------------------------------------------------------------------------------------------------------- Disclaimer -------------------------------------------------------------------------------------------------------------------- Disclaimer: All videos are for educational purposes and use them wisely. Any video may have a slight mistake, please take decisions based on your research. This video is not forcing anything on you. #GoogleSheets #AttendanceSystem #ESP8266