Screen driver

The screen driver has been added to overtime and is a little overloaded with functionality. It is the driver that displays stuff in the web browser (on the main screen in the caravan). The driver is split into server and clientYou can also run the client in dev mode using:

npm run start

and when you are happy, run

npm run build

Which will put the newly compiled files in the relevant directory for the server. To run the server, in the server directory just run

node main.js

Then point your browser at http://localhost:9102

The server communicates with the browser over web-sockets. It also communicates with the main engine over MQTT. By calling endpoints on the server, the content being displayed in the browser can be changed. The following is a list of possibilities:

endpoint	method	description	params
/api/home	GET	Show the future mundane log on a black background
/api/camera	GET	Stream the output from the browser webcam
/api/camera/scan	GET	Show the output from the browser webcam and overlay face scan results
/api/web	GET	Display arbitrary HTML	snippet: name of an arbitrary bit of html. Stored in the screen_driver/server/public/snippets directory
/api/media/play	GET	Play some media	media: name of a media file in the media directory delay : number of milliseconds to wait before playing (defaults to 500).
/api/air	GET	Show the dyson air quality screen
/api/qrcode	GET	Show a large qrcode on the screen	qrcode: the url to be encoded as a qrcode.
/api/image	GET	Show an image, fullscreen	image: the url of the image
/api/message	GET	Flash up a message on the bottom of the screen for a few seconds	message: the message to display