RFiD call alert
RFID SIM800L GSM Module Project | Wrong Card Call Alert system
🛒 Components Used:
1: Arduino 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