Nowadays providing security to houses is necessary. securing houses became one of the concerning issues that facing many people. This paper aims to propose a security door lock system based on raspberry pi technology where cameras, keyboards are used to providing authorization and notification to the owner. In this system, the authorized person is the only one who will get permission to access the door. This system generates an OTP and sends it to the owner which can be shared by the owner to the unauthorized person by which he/she will get access. The proposed system can be extended to be used for different areas like banks, offices.