J11 is compatible with quite some Raspberry Pi hats since it offers UART. However, the Raspberry Pi has its pin header shifted by ~7.1mm from the board edge, often boards extend out to the edge of the Pi. However, Yellow has J11 only shifted ~4.8mm, and also the enclosure also overlaps onto the PCB. Shifting J11 by two pins (5.08mm, a total of almost 1cm from the board edge) should make pretty much every Pi extension work.
J11 is compatible with quite some Raspberry Pi hats since it offers UART. However, the Raspberry Pi has its pin header shifted by ~7.1mm from the board edge, often boards extend out to the edge of the Pi. However, Yellow has J11 only shifted ~4.8mm, and also the enclosure also overlaps onto the PCB. Shifting J11 by two pins (5.08mm, a total of almost 1cm from the board edge) should make pretty much every Pi extension work.