Robot powers itself by cleaning your house

Limbo’s honeycomb flex wheels can expand and contract depending on need. Low-clearance tables and cupboard lips trigger Limbo to lower its profile, while in wide open areas and shag carpeting, Limbo expands its wheels and keeps on truckin’.
Limbo can also alter the position of its wheels with respect to its chassis, giving itself a sort of monster truck mode that is capable of cleaning and climbing stairs.
So that’s all fine and good, but what really sets Limbo apart from even the most tricked-out Roombas is how it recharges itself: it derives its power from all the bacteria that it cleans from your floors. The process is called microbial electrolysis and it’s tested and proven. While the Limbo is still a concept, its one that we’re hoping gets green-lit for production ASAP.