37 Sensors? 111 Sensors?

I’ve gotten so intrigued by my “37 sensor” kit that I’ve purchased two more different ones. Lots of commonality, quite a few of the 37 that don’t match the definition of a “sensor”. So I don’t know how many real sensors I’ve got!

Because of the poor to no documentation provided and all bad reviews from people who can’t figure them out, I’ve enacted a mission to investigate all of them and produce a book of my findings. This puts my other books in progress on hold. Some sensors are easy, like “button”, but others have taken days. I’m currently waiting on some more “obstacle avoidance” sensors to arrive because neither of the two I’ve got functions, and they fail for different reasons! These sensors, the ones with four pins and two potentiometers, have a plethora of design flaws and bad instructions. I’ve got one arriving today that has three pins and a single potentiometer, which has a totally different design, and shouldn’t have these problems.

Anyway, back to work!