Now that this cool module has a second official firmware available - VU Meter (video demo), I thought it might be nice for lines members to have a place to chat about the module, and it’s customization. The firmware options are all open source (more are in the works btw), and the github repo has info about how to write your own firmware.
Official page for the module
Github with info about writing your own firmware for it
There is already a user contributed firmware option written by Awonak using Go.