Hello, would it be viable to mill off the castellated edges of the Xiao board to reduce the width of the board?
The board is a bit too wide for my application right now.
Hi,
Which board, I see some VIA’s under microscope and a Resister next to PMIC (sorta looks like) you could trim back to the Beginning of the Holes? Time to go Frankenstein on one…LOL
HTH
GL :-p
The NRF board without the sensors
I sanded off the castellated edges and 3/4 of the diameter of the holes on the left side of the board. The board still works.
LOL, Nice… 
Getting real small now…
GL 