for some reason i just backed a kickstarter (first one, i think), its an AI on a chip thing, called HuskyLens. not bad for 25$

digging a bit, after the quick click i actually read the description and found its core is a Kendryte K210 IC (github).
and of course there is already an aliexpress dev board going.

awesome-public-datasets > list of a topic-centric public data sources in high quality. They are collected and tidied from blogs, answers, and user responses.

List of computer vision pre-trained model