There was math… and a spreadsheet… and my first use of the LN() function…
Then there was an order of resistors… and capacitors… and inverting Schmitt triggers… and diodes… and more resistors…
Next I’m thinking about the graphical UI, and the buttons… And I almost don’t have a clue…
I’ve sort got a vague vision… in “gig mode” little more than the selected set list and song name, or if you’re scrolling through highlighting either the set or song you will be switching to… In “edit mode” the current parameter will have the prior and next parameter above/below, and the value underneath… Maybe some “soft keys” under the display rather than hardcoding buttons… I “only” have 20 buttons (min order) and I quickly got to 15 before I thought “WOAH!”
Way back in my past I did have experience designing a 2-operator FM synth editor on a 256 by 176 display (256 by 192 pixels with 16 pixel rows “reserved”). Never as small as 160 by 104… that’s equivalent to 20 by 13 characters using 8×8 pixel characters…
Got a feeling I need to re-acquaint myself with the BDF format (may be “source level” altering some stuff), and look at the u8glib project which I’m planning on using for the “hard stuff” for driving the display.
B.