How can I use the drop cam part and what are they for? I can’t find any info about them online
Drop cams are generally used to produce a vertical up-and-down motion. A quick Google search gave me multiple images and videos, such as this one. Personally, I don’t see too much of a use for them in the vIQRC system, but you can experiment with them. Maybe you find a good purpose for them in your bot. Have fun!