Electric Gate contoller

[shabba]

Hi,
My electric gates has become quite erratic as of late (2 x swing). I was going to look at buying a new controller (existing one is Serai CR/31) but I think I would like to make/copy one.
Anyone know of any existing open ones? Currently I have a reed switch on the gates that connects to mysensors network but this only lets me know when opens/closes and not actually controls it. I would love something integrated.
Thanks!