A robot vacuum cleaner that sharpens like a yankee in the rebellious period - GIGAZINE
Another Cardboard Robot-vacuum-cleaner Controlled With Arduino : 21 Steps - Instructables
Amazon.com - Dreametech D10 Plus Robot Vacuum and Mop with Self-Emptying Base for 45 Days of Cleaning, Robotic Vacuum with 4000 Pa Suction and LiDAR Navigation, Compatible with Alexa, Wi-Fi Connected -
Sidekick: A Low-Cost Open-Source 3D-printed liquid dispensing robot - ScienceDirect