Automatic Chicken Coop Door Opener

Here is my personal implementation of an Automatic Chicken Coop Door Opener. It has direct control button, a simple web interface with camera support and can be controlled via MQTT protocol. It is integrated in my home automation system.

This project requires materials:

• 3D printed parts
• An Arduino (duemilanove in my case, but any board should be okay)
• A Raspberry Pi (3 A+ in my case)
• Raspberry Pi Camera + SV-6B Infrared Ring (optional)
• A Stepper motor (project could be adapted to support DC motors)
• A Stepper driver (DRV8825 in my case)
• A Push Button Switch Box
• A box to protect electronics
• A DS18b20 Temperature sensor
• Two magnetic door sensor (I've choose mine brown)
• Some 4 wires cables, dupont cables and Solder Seal Wire Connectors
• A Waterproof Electrical Distribution Box
• 5V and 12V Industrial DIN Rail Switching Power Supply
• 13cm diameter 8 steel rod
• Two 608 bearings
• Some washers and screws

Raspberry Pi software installation

• First install your preferred Linux distribution (I've simply used Raspberry Pi OS).
• (optional) Install motion: sudo apt install motion (my config file in the other directory) and make it start at boot (edit /etc/default/motion)
• Install redis server: sudo apt install redis-server and enable start on boot sudo systemctl enable redis-server
• Clone this project GIT repository
• Install python required libraries: sudo pip3 install -r requirements.txt
• Install gunicorn3 and authbind: sudo apt install gunicorn3 authbind
• Configure authbind: sudo touch /etc/authbind/byport/80; sudo chmod 500 /etc/authbind/byport/80; sudo chown pi /etc/authbind/byport/80
• Copy file other/chicken-coop.service to /etc/systemd/system/chicken-coop.service, then reload systemd (sudo systemctl daemon-reload) and enable the service sudo systemctl enable chicken-coop.service

Electronic assembly

Please refer to the schema below to connect elements. Also connect the Arduino to the Raspberry Pi via USB, this is needed as they are communicating internally.

Arduino firmware upload

You'll find the arduino firmware in the other/chicken_coop_arduino_v2 folder. You'll need to install libraries ArduinoJson and StepperDriver.

Print 3D parts

Print files from folder other/3D-parts:

• box.stl
• lead.stl
• drive-gear.stl
• stepper-gear.stl
• winder.stl
• IR-holder.stl
• IR-holder-base.stl
• case-without-clip.stl (use some glue to paste it on IR-holder.stl)

Node-RED

I use Node-RED to automate opening/closing the door according to the sun position.

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License

This project is released under GNU GPLv3 license.

Credits

• The chicken egg is from Icon Fonts and is licensed by CC BY 3.0
• The day night original svg is from Free SVG and is licensed as Public Domain
• The electronic schematic image was generated using a self build Fritzing install.
• The Pi Camera mount with infrared ring is a derivative of Thing ico Simple PiCam Case/Mount, Infrared Ring Mount SV-6B and GoPro customizable mounts, and a library to expand