I'm currently putting together a power antenna to open the pop door for my girls. The idea come from reading threads on here. I have power to the coop and was going to wire it with timers to open and close using the power supply, but i'm not sure what to do if the power goes out in case of a power outage. it wont open or close. How would i open and close the door? is there a manual switch i could wire into it in case and not sure how i would do this.