Utilizing a Raspberry Pi, this guide details the creation of a custom security camera capable of motion detection, facial recognition, and real-time alerts, catering to the necessity for timely information in security situations. The project requires a Raspberry Pi B+, a camera module, a PIR sensor for motion detection, and software like OpenCV for image analysis and PubNub for real-time communication. The system captures images when motion is detected, uses OpenCV to analyze these images for human faces, and stores them in a Parse database if a person is detected. Alerts are then sent in real time using PubNub, with the option to display these alerts on a web console. The guide also suggests potential enhancements, such as sending push notifications to mobile devices, and provides resources for further customization of the project.