I am very new to building electrical components but I am trying to get a simple design and then build a light sensitive door opener for my chicken coop.
It would need to run off a small battery. It would only need to lift or push a door weighing no more than 100g. It would either need to be operated by light sensitive switch or a timer. It would all need to be housed in a waterproof housing.
Can anyone out there help me with this.