Smart Contactless Doorbell System Using ESP32-CAM

The Smart Contactless Doorbell System Using ESP32-CAM is a system designed to enhance home security and convenience by eliminating the need for physical contact. Leveraging Internet of Things (IoT) technology, this system notifies homeowners of visitors and enables remote access control through an Android application developed using MIT App Inventor ([1]). The system uses an IR sensor to detect motion, which triggers the ESP32-CAM to capture an image of the visitor. The image is then sent to the homeowner’s Android application, where they can decide whether to unlock or lock the door by clicking the appropriate button. The backend of the system is managed using Firebase, which stores the images and facilitates communication between the ESP32-CAM and the Android app. The door lock mechanism is controlled by a solenoid lock, which is triggered based on the homeowner’s response. This system is designed to be cost-effective, easy to use, and highly secure, making it suitable for modern smart homes. Future improvements could include enhancing the Wi-Fi range using directional antennas and integrating more advanced security features.