awtrix-light/docs/dev.md

Hidden Features

Ok, now they are no longer hidden :).
This section contains small setting options that the majority of users do not change or change very rarely and therefore saved the effort of creating an elaborate settings interface.

Create a dev.json in your filemanager.

JSON Properties

The JSON object has the following properties:

Key	Type	Description	Default
bootsound	string	Uses a custom melodie from the MELODIES folder
uppercase	boolean	Print every character in uppercase	true