optical sensor

on today's episode of in stops and explanations part four we are talking about optical sensors aren't we Sophie get off my board get down from there all right so why am I making such a big fuss about this well it's important to understand the switching transistor concept and when you do that then that opens up a whole other world of availability and possibilities to you if you are AI rep strapper like me and just designing a building stuff as I literally I don't even care what kind of sensor I have because I understand how to use it and I've got all kinds of sensors that I have pulled off of equipment some amount of copiers some of them out of industrial equipment lots and lots of different types of sensors here that that all have some type of a transistor output and once you understand how that works you can use any of them in any of the ways that you want to now if I look at some diff