Hi.
Never did any arduino-stuff before so this is mostly a question if this is possible to do more than a question of how to do it. 
I'm about to make this thing for an existing machine at my work. Simply explained its a machine where a piece of paper is coming in from on side, gets powdered glue on it and at last gets the powder blown of again before coming out on the other side.
The machine already has this functionality, but we would like to make it smarter since it's blowing air all the time ( also when there is no paper at the blowing position and that makes it consume a lot of air from the compressors which is a waste of air and power.
I suppose a proximity sensor and pneumatic solenoid will do the job for the project, but thats not important for now
Can I do this ? :
- Put in a piece of paper and then 6 seconds later blow air for two seconds.
- Put in another piece of paper 4 seconds after and trigger another cycle while the first one is running
Se attached jpg of the timeline of these events.
So the question is if it's possible to have these overlapping events. I have been reading a lot about arduino and have the impression that it's not since it only does one thing at the time.
I might be able to put the sensor closer to the air and make sure that it finishes the first cycle before next piece of paper, but that will leave the sensor in the chamber where the powder could stick to the sensor and by that get very unstable.
