Gumbo Millennium Plazacam

This is the script that manages the Gumbo Millennium Plazacam.

Since it needs to run headless on a Raspberry Pi, and I trust Java to run autonomously, the application is written in Java.

License

Licensed under the MIT license.

Using the basic scripts

To install the basic scripts, run curl -o- -L https://github.com/gumbo-millennium/plazacam/raw/main/scripts/update.sh | bash -.
This will install an updater an a capture script in your ~/bin folder.

Then, create the required files:

• ~/device-id.txt containing a UUID to identify this file with
• ~/device-access-token.txt containing an access token to use to login with

Then, schedule it:

*/5 * * * ~/bin/capture-plazacam.sh
22  5 * * ~/bin/update-plazacam.sh

Architecture

• The main App class
  • Keeps a single ConfigController, CameraController and UploadController
  • Asks the CameraController to create cameras based on the config
  • Asks the CameraController to make photos once every now and then
  • Uploads created photo using the UploadController
• The ConfigController class
  • Loads the config from a file, or writes a default config to a file if none exists
  • Translates configs to proper values
• The CameraController class
  • Keeps track of CameraHandle instances
  • Can be asked to create a number of cameras
  • Can be asked to produce a set of photos
• The UploadController class
  • Connects to a server and uploads JPEG files
• The CameraHandle class
  • Connects and controls a single connected camera
  • Can be asked to make a photo, returning a JPEG image

Below is an example class diagram. A resource is the reference to the webcam, initialised from the given socket. It's probably better to acquire this resource beforehand, instead of on-demand.

Installing

TODO