RFID SIM800L GSM Module Project | Wrong Card Call Alert | Arduino Based Security System
Welcome to another exciting DIY project! In this video, I’ll show you how to create a smart security system using an RFID module and a SIM800L GSM module.
📌 What You'll Learn:
How to use RFID for access control
How to trigger a phone call alert using SIM800L on scanning an unauthorized RFID tag
Full circuit diagram, Arduino code, and real-time demo
How to power the SIM800L using a buck converter and 18650 batteries
💡 This project is perfect for:
Home security
Door lock automation
Smart ID card authentication systems
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👇 Useful Links: 📁 Code + Diagram: https://drive.google.com/drive/folder...
🛒 Components Used:
1: Arduino Uno / Nano
(Main microcontroller to control the whole system)
2 : RFID Module (RC522)
(Used to read RFID tags/cards)
3 : RFID Tags or Cards
(To identify authorized or unauthorized access)
4 : SIM800L GSM Module
(Used to make a call or send SMS in case of unauthorized access)
5 : Servo Motor
(For opening/closing the lock — depending on your design)
6 : Buzzer
(To alert when unauthorized access is attempted)
7 : LEDs
(To indicate status — access granted/denied)
8 : Power Supply
9: 5V for Arduino
4.2V (stable) for SIM800L (can use a buck converter or Li-ion battery)
Have a question? 💬 Drop a comment below —
#RFID #KeypadLock #ArduinoProjects #SecureDoorLock #sim800l #gsmmodule
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