This tutorial uses 2G (GSM) connection. I would be glad if it could be updated for 3G and 4G modules, it's a pity 😒 we have to be using 2G networks for projects in 2023. This tutorial assumes you are ...

Arduino Uno GSM Shield (compatible with your network provider) Fingerprint Sensor Module (e.g., R305) RFID Reader Module (e.g., MFRC522) Power supply (e.g., 5V, 2A) LEDs (2 colors) Buzzer Connecting ...