Nice work on the chicken coop controller and also developed something similar for our Chicken Coop, but I went down the RaspberryPI path, using a java developed Application and a custom built PCB. To reduce the power usage, I added a PIXACE and RTC module, so that the unit could power down over night. All of the configuration and sensor logging is held in a H2 Database.
The door opening and closing times are changed each day, because the app reads an internet database that contains the dawn and dust times for a specific GPS location.
I’m currently added a food management aspect via a couple of 150mm storm water units with HX711 for weight monitoring.
Anyway, if your interested, you can find more details on this web site: