Design and Development of an IoT Contactless Door Buzzer, Automation and Home Security Device

Home security is a vital element of home computerization and perhaps the most significant matter in the current era of technology. This paper presents a conceptual design and development of an IoT contactless door buzzer, automation and home security device using a Raspberry Pi microprocessor and mechanical system embedded with a home security camera. Therefore, the main objective of our work is to design a system which can alert the user and others of an intruder break-in by sending a notification to their smartphones. The owner will also have the ability to stop or start the alarm remotely using just his smartphone. The proposed system aims to assist blind and visually impaired people in unlocking their house’s main door without using a manual key but by scanning the person's face through face recognition technology. A pi camera is connected directly to the Raspberry Pi. A relay controls the circuit to switch high current, on/off and electrically isolated signals, while the ultrasonic sensor is object detection in front of the door. A mobile application is developed for the user to control the device. An alert will be sent to the user if a thief breaks into the door without the owner’s consent for them to take necessary precautionary measures.