Howdy, first time poster!
I'm in the process of setting up a woodshop dust collector and was inspired by this video to automate (a) turning on the dust collector and (b) opening and closing specific blast gates (essentially valves that open certain sections of the ductwork) based on simply powering a tool. In this video, he uses an Arduino Uno R3 and an Adafruit servo shield, along with some RC servos to open the blast gates and an underpowered relay to turn on/off the dust collector. He doesn't go into much detail but he does post his code here.
This will be my first Arduino project so I have a lot to learn about programming it, but figured I could start with his code as a basis. But before I purchase and test different hardware, I want to make sure it will work for my application which is a bit different:
My dust collector is bigger - 5hp motor and draws 23a FLA I believe, wired for 240v single phase. I understand this will require a contactor instead of a relay?
I don't particularly like his electrical box that stores the current sensor. Is there a better/cheaper way to accomplish this (either a CT or cheap current switch that could simply wrap around a wire without requiring an add-on box at each tool)? Also it would need to work for both 120v and 240v tools.
Are the RC servos he's using a good solution? My blast gates will be larger (6" diameter) so the servos will be moving more mass to open/close the sheet metal. If there is a better servo for this kind of application, I'd love to know.
Any other advice or things you would caution me against doing?
I live in the USA if that is relevant