Smart Contactless Doorbell System Using ESP32-CAM

The Smart Contactless Doorbell System is a system that is designed to enhance home security and the convenience by getting rid of the need for physical contact. Leveraging Internet of Things (IoT) technology, this system informs the resident about the visitors and enables the remote access control using an android app which is developed with the help of MIT App Inventor ([1]). This system make use of IR sensor that detects motion and this triggers the ESP32-CAM to capture the photo of the visitor. This image is then sent to the resident’s application, after seeing the photo of visitor they can decide whether they should unlock the door or keep it locked by just clicking the button in the application. The backend of this system is handled using Firebase, which basically stores the images of visitor and helps in communicating between ESP32-CAM and the resident’s application. The door lock system is controlled using solenoid lock and it is triggered on the basis of resident’s response. This system is basically designed to be user friendly, easy to use, cost-effective and highly secure, which makes it fit for smart homes. In future there will many improvements which includes enhancement of the Wi-Fi range and integration of more advanced security features. Keywords: Internet of Things (IoT), Smart Contactless Doorbell, ESP32-CAM, App.