Hinged door project for newbie

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hi guys;

wondered if can help. have chicken coop , want automate door opening opens , closes @ dawn , night.

the problem face, hence arduino route , posting here, not have pop door [vertical sliding door] nor enough room fit one. coop has hinged door chickens use , horizontal sliding door. have got girls using hinged door prefer project based around this.

i have myself arduino uno. know need photoelectric/light sensor , code thing bugging me mechanics of opening hinged door.

what best way? use servo motor fixed arm attached door? pulley system best? need switches determine open/closed?

the door quite small, about  12 x 6 inches, suspect not need powerful of motors?

any advice has done appreciated, or pointing in direction of method useful.

thank in advance.,.....

dan

there dozens of chicken coop threads on forum.
google should find them - "chicken coop site:arduino.cc"

...r


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