High Security Electronic Door Lock System using Arduino Uno

Author(s)	Dr. N ANJU LATHA
Country	India
Abstract	A high-security door lock system using an ESP32-CAM, keypad, GSM module, and gas and fire sensor is an effective solution for home or office security. The ESP32 CAM serves as the central controller and surveillance device, capturing live footage of anyone attempting access. A keypad is used to input a passcode, allowing authorized entry. If an incorrect passcode is entered, the system triggers an alert through the GSM module, sending a text message to the owner’s phone to inform them of potential unauthorized access. To enhance safety, a gas and fire sensor is included. In the event of a gas leak and fire, it detects the hazard immediately and activates both an alarm and the GSM module, alerting the owner and possibly initiating safety measures like door unlocking for escape. Together, these components provide a layered security approach, offering surveillance, access control, real-time alerts, and fire and gas hazard detection for robust home or office protection.
Keywords	Keywords: ESP32-CAM, Arduino IDE
Field	Engineering
Published In	Volume 7, Issue 4, July-August 2025
Published On	2025-07-16
DOI	https://doi.org/10.36948/ijfmr.2025.v07i04.49583
Short DOI	https://doi.org/g9tz3g

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