With the arm assembled, our next job was giving it eyes. We set up the Logitech C270 webcam, taped to a cardboard box as a quick mount, and tested it on a laptop to check the view before moving everything onto the Arduino UNO Q. Our test scene was a white surface with our red Crayola marker standing upright and the webcam's own box as a stand-in obstacle.

Our quick camera mount: the C270 webcam taped to a cardboard box to hold it steady while we collect training images.

Live feed from the C270 during testing: the red Crayola marker stands upright, with the webcam's box as a stand-in obstacle.