I'm new to Arduino and I've got a little project I would like to pursue but would like ask a few questions before I get started. We've got a New Holland BR 730 round hay baler. When the bale chamber gets full it hits a contact that triggers a 12v light/buzzer on the control box that's mounted on the tractor. After the full bale warnings, there's a toggle switch that activates a 12v actuator that extends the twine out towards the bale. After it has been fully extended the toggle switch then reverses the polarity to bring the arm home.
What I would like to do is set the control box up so that when the buzzer goes off, you can press a button that would activate the extension of the wrapper arm for roughly 10-15 seconds. Once it is fully extednded, pause for a second, then reverse back 10-15 seconds to where it started from (which cuts the twine).
I was wondering if anyone could help me get started as far as what i would need.
Any help is aprreciated!