Ibrahim Adewunmi

The Laser Tripwire Security System integrates laser tripwire technology with **RFID authorization to enhance security. The system employs a laser module that emits a concentrated light beam. A photo resistor detects the presence of this light. When an intruder crosses the laser beam, it triggers an alert. Access to the secured area is granted only to individuals with pre-authorised RFID cards or tags. Scanning these authorized RFID cards enables users to control the system state (enable/disable). The Arduino Uno R3 microcontroller serves as the central control unit. It interprets data from the RFID reader and photo resistors. The Arduino verifies RFID authorisation and monitors the laser beam status. Authorised users can check if their presented RFID card is authorised. The system ensures no unauthorized disruptions are detected by the laser tripwire. Additionally, authorized users can enable/disable the system and deactivate alarms based on its state.