Continuing a thread/idea started by @Rowanlikesdonuts in this thread, later buried in a megathread.
Here’s the PCB and bezel design for a seven segment display input module which I’m sending out to have fabbed by JLCPCB;
The idea is to print out your desired legends for the three displays on 4mil transparency, and then cover the entire thing with a 0.2mm ND filter for a clean look. The electrical design is very similar to the framework LED matrix, so very similar firmware/driver should work.
The design files are published at GitHub - cscott/SevenSegmentInputModule: 7-segment display input module for Framework 16
Schematic:
