Roam Vacuum Robot R7

LiDAR builds the map on the first run; from then on the R7 cleans room by room in the order you give it. The mop plate lifts twelve millimetres when it reaches a rug, which is enough for everything but the deepest pile. The base station empties the bin into a bag that lasts about two months, washes the pads in hot water and dries them, so the machine does not smell in week three. Obstacle avoidance runs on-device and has been taught what a cable and a sock look like.