I’ve noticed that most electronics makers end up with a bunch of incompatible boards.
The closest thing to a ‘standard’ is the Feather footprint & Qwiic.
There are also a bunch of other systems M5stack, Mikroe click, , Breakout garden, MicroMod
So I made a board that attempts to connect these systems, hopefully reducing electronics waste.
Feather-Bit/v1 at main · rosmo-robot/Feather-Bit · GitHub.
The board isn’t beautiful but I hope it might kinda work. CERN-OHL-P licenced in Kicad6
Being mindful of my XKCD
I’m reluctant to call the footprint a ‘standard’ but I do hope some other people might use it to make daughterboards
A Micromod > Feather footprint would kinda complete the picture.