I’ve created my first PCB, a simple circuit to convert footswitches to MIDI messages via an Arduino nano.
There is a small issue when I upload and check the board. The warning message appears that there are large areas of low copper usage on both sides of the PCB, each less than 10%.
So I’d like to know if an additional copper fill is necessary while each connector is wired correctly? Is it possible that the PCB does not work correctly in the end?
I look forward to your answers!