Hazri I.M.Mus'ab SahrimWan Zakiah Wan IsmailIsmail I.Rahman S.A.Hussin F.S.2024-05-292024-05-2920209.78E+1210.1109/ISIEA49364.2020.91881112-s2.0-85091981315https://www.scopus.com/inward/record.uri?eid=2-s2.0-85091981315&doi=10.1109%2fISIEA49364.2020.9188111&partnerID=40&md5=54d115b88454769ebf163fafe2d150bahttps://oarep.usim.edu.my/handle/123456789/10198Technology is a double-edged sword when it changes the way we perform everyday activities for the better. Unfortunately, misfits will always find new ways to misuse technology to facilitate their misdeeds. CCTV are great security measures that can be used to catch culprits in action, but other than banks, hospitals, shopping malls, academic institutes etc., a CCTV solution is beyond most household budgets and require continuous monitoring. Because mobile phones are the primary hand-held device, it is only logical to integrate these with a CCTV solution. Motion Detection Security System Notifier using Raspberry Pi with Telegram is as the name suggests. Using Raspberry Pi, a motion detection system is developed through the method of background subtraction, which works by subtracting the static from the background frame from the constantly changing foreground. The change of value in noise and pixel density between the background frame and the foreground indicates motion. Each time a motion is detected, the system will automatically send the frame to the user via Telegram to notify that there has been movement in the area as captured in the frames. A prototype is first developed in a virtual environment using VirtualBox software before running it on the Raspberry Pi. This paper will show the relevance of the project. � 2020 IEEE.en-USBackground SubtractionMotion DetectionRaspberry-PiSecurity CameraTelegramArticle