Just thougt i’d share the BL-touch pins for the A+ board, i spent some educational time reading header files in marlin.
sensor_pin: ^PC7 #this is your z-min endstop
control_pin: PB5 #this is the 3-pin dupont header next to the temperature sensor ports
Obvs not a complete config, but i hope finding PB5 helps someone. Only valid for the a+ board, the original version doesn’t have the header. I don’t know about later revisions. I know it’s a poor choice for klipper, but that’s the board I’ve got.
Schematics here show the header in question: GT2560A/GT2560A+ - Geeetech Wiki