I don't know if I'm dumb or not, but I think you can't just tell if a redstone system is just ON or OFF with Create (I know that Nixie Tube gives the signal strenght, but that's not what I want)
So I basically created an item loop, between 2 items that are respectfully called "ON" and "OFF", reading it from a depot.
Everytime I flick the lever on my control pannel, it switches the farm on and off, sending the signal through a redstone torch (to invert the signal), an observer gives a little signal lenght, that I extend to 2 ticks in order to activate the funnel for enough time to get 1 item through
This item is then sent into the chute from the weighted ejector, while the other one goes onto the depot
This is the worst contraption ever there :)