A simple server that serves webcam pictures to a website.
When the user clicks take picture, a regular high quality picture is taken. If the user instead presses the button controlled by the Arduino, the image is rotated. Lastly, if the user presses LED ON/OFF the Arduino light turns on and off.
An SVG file for a camera stand + visor (to control lighting) and button enclosure as well as diagrams for different webcam + arudino + raspberry pi ideas