there should be kicad files for a simple pcb that carries the vcc and gnd between both hall effect sensors, the pcb would have a hole to screw it to the top stl. the pcb would prevent the legs of the hall effect sensors from shorting together. the pcb would have headers for the 4 wires, 3.3v, gnd, and the two sensor pins.
also the button switch pcb should have a location for a through hole pullup resistor (to avoid smt assembly cost), and an extra header for 3.3v. It would be better if each button switch pcb had two headers for gnd and two for 3.3v. that is so that you can daisy chain a wire from one switch to the next, rather than having a large bundle of grounds tied together that could short something out if moved.
there should be kicad files for a simple pcb that carries the vcc and gnd between both hall effect sensors, the pcb would have a hole to screw it to the top stl. the pcb would prevent the legs of the hall effect sensors from shorting together. the pcb would have headers for the 4 wires, 3.3v, gnd, and the two sensor pins.
also the button switch pcb should have a location for a through hole pullup resistor (to avoid smt assembly cost), and an extra header for 3.3v. It would be better if each button switch pcb had two headers for gnd and two for 3.3v. that is so that you can daisy chain a wire from one switch to the next, rather than having a large bundle of grounds tied together that could short something out if moved.