Opens a secure websocket connection to a control server, so your garage door can be opened from anywhere (that can access your control server) with low latency (connection is already open).
Install raspbian, configure wifi, install updates. Then, enable the Camera interface in the Raspberry Pi configuration tool (raspi-config).
Note on headless: Setup wifi and ssh by adding the files wpa_supplicant.conf and ssh to the boot partition. wpa_supplicant.conf must have the wifi credentials and examples can be found via google. The ssh file is empty.
The remaining setup takes places on the raspberry pi command line, either through the built in terminal tool or a remote ssh session.
Give us an up-to-date ruby that belongs to the pi user so we can safely install gems and extensions without interfering with the system ruby and needing root privileges
I prefer to use chruby+ruby-install
Install both tools, including chruby's .bashrc changes, and restart terminal.
Install a recent ruby version and set it as the system default. This will take a very long time to complete (45+min on a raspberry pi 3).
ruby-install --jobs=4 ruby 2.7.6
echo "2.7.6" > ~/.ruby-version
Motion is a utility that makes camera control pretty easy.
sudo apt install motion
The config file in this project (doc/motion.conf) will configure motion to stream the raspberry pi camera on the local network, on port 8081 (8082 for low quality and 8080 for web config), as well as store a snapshot image every 10 seconds to the RAM disk we created above. Place it at /etc/motion/motion.conf
Edit /etc/default/motion and change start_motion_daemon to yes to enable motion to work as a system controlled service.
Start the service
sudo service motion start
You can then access a video stream via http://garager:8081/ using the credentials defined in motion.conf.
git clone https://github.com/carlzulauf/garager.git
cd garager
gem install bundler
bundle install
Copy the garager service (doc/garager.service) to /etc/systemd/system/garager.service and then enable the service:
sudo systemctl enable garager