I want to create a robot that can pick up litter and this requires detecting litter nearby and differentiating between litter (metallic objects, plastics, glass and paper), natural objects (sticks, leaves, trees and bushes) and walls. Does anyone know how to do that? Thanks in advance!
To clarify, I expect multiple sensors, not just one. Also, this category was the only sensor category I could find, if there are any other sensor categories, let me know please!