Arduino sensors I ordered arrived today.

Some of these sensors are poorly explained. For example, what does an "Avoid" sensor do? Or a Heartbrat?

I have a sheet with pictures of each, with the name in English and Chinese. This is it. I might want, I don't know part data sheets? Part numbers? haha nope. Big Sound and Small Sound are presumably related to sensing sound, and the big one is indeed bigger than the small. What sort of capability difference do they have? No idea.

I guess skimping on documentation was a big part of why this kit with 37 sensors was affordable.

Working with these things might be interesting.