On the drawing of NANOEveryV3.0.sch.pdf 2019/07/17, we can see that PA2 pin corresponding Arduino A4/SDA function.
Another pin, PF2, correspond at the same function, but the wire is'nt connected to the blue BUS.
Another pin, PF3, correspond at the A5/SCL function is'nt connected to the blue BUS.
So, i've some interrogations :
What is the Arduino function of pin µC4809 PF2 ? Note that A4/SDA is on PA2.
Have pin µC4809 PF3 used by Arduino ? For witch function ?
Is it possible to contact the drawer for these remarks ?