I would like to control a chicken house door with a linear actuator (16") from the internet. I am new to arduino but have some electronic experience. can someone please point me in right direction for the boards i need to get started. i just need to control the door up and down to fixed positions. From what i understand the actuators use reverse polarity to move it up and down so i think it just need 2 relays? i have wired Ethernet to the controller so i dont need wifi. I would like to keep this as cheap as possible. Having the system on a timer also would be great but not necessary. any help would be great.