[For those who are interested in my new projects] -> I have moved my website to a new domain : https://bytechlab.com/
Maybe one or two weeks , i don't really remember.
CleanBOT doesn't detect any dust , this project is as simple as it could be. If you want to make dust sensor you probably can use some laser or IR diodes with some recievers (photodiodes / phototransistors) to sense the flow of particles.
Nowadays it not a bad idea ,but when i was making this robot there wasn't any Raspberry Pi Zero :)
What do you mean by word "procedures"?
Uno R3 has about 18 pins , for this project you need about 30 so it will be tricky to fit on this board, but it is still possible.
I dont have any specs of this blower excluding current and voltage rating :~ 1A and ~12V.