Based on my previous concept, I developed symbolic visuals using p5.js. Colour is being used to indicate that somebody is knocking the door. Employing Computer Vision, the transmitter sends signals that categorise visitors into two categories; either friends or strangers. Warm-coloured, fast-paced particles imply that close people like neighbours, family and friends are at the door, while cold-coloured, slow-paced particles embody unfamiliar faces. The user can either allow the entrance or speak to the visitors using the microphone.
Link to code: https://editor.p5js.org/MariaV/sketches/_JDB9Grwt