Open and close the henhouse at sunrise / sunset to protect chicken from freeze and fox.

Manage also cereal ration. It deliver 1/2 ration 1/4h before opening the door and 1/2 ration 5_min before after closing the door. The delivering motor make a specific noise to call chicken for dinner, then the door is closed. This shorten the exposition time of the cereal to pest (rats, pigeons, etc...)