I want to mount a "Raspberry Pi Codec Zero" HAT on a "Raspberry Pi 3A+". Obviously the GPIO connector (and the adjacent pre-drilled mounting holes) will mate, but there are no pre-drilled holes on the 3A+ for the other two mounting holes on the Zero sized HAT.
I have examined the 3A+ carefully, and there are no apparent obstructions that would preclude adding these two holes (and accommodate the posts and screws) .
However. I don't know if the 3A+ PCB is multi-layered. If not, then drilling the two holes would be reasonably straightforward.
But if it is multilayered, then only the 3A+ board designers would be able to determine if there was a 'safe' path through the board at those locations. One would hope they would keep that area clear of embedded traces 'just in case'![:o]( "Surprised")
I'd rather not (potentially) sacrifice a $25 board to find out![:cry:]( "Crying or Very Sad")
Side note: There was 3A+ board revision when they switched PMIC chips. FWIW, my boards on hand are pre-revision.
Help![:?:]( "Question")
I have examined the 3A+ carefully, and there are no apparent obstructions that would preclude adding these two holes (and accommodate the posts and screws) .
However. I don't know if the 3A+ PCB is multi-layered. If not, then drilling the two holes would be reasonably straightforward.
But if it is multilayered, then only the 3A+ board designers would be able to determine if there was a 'safe' path through the board at those locations. One would hope they would keep that area clear of embedded traces 'just in case'
I'd rather not (potentially) sacrifice a $25 board to find out
Side note: There was 3A+ board revision when they switched PMIC chips. FWIW, my boards on hand are pre-revision.
Help
Statistics: Posted by plugh — Wed Apr 10, 2024 2:07 pm