esta configuración sirvió para mi

[knotart01]

yo tengo una tarjeta skr 1.4 turbo y la micro probe V2. la versión de marlín 2.1.2.

en @section endstops pullups utilizo esta configuración

// Enable pullup for all endstops to prevent a floating state //#define ENDSTOPPULLUPS

if DISABLED(ENDSTOPPULLUPS)

// Disable ENDSTOPPULLUPS to set pullups individually

define ENDSTOPPULLUP_XMIN

define ENDSTOPPULLUP_YMIN

define ENDSTOPPULLUP_ZMIN

//#define ENDSTOPPULLUP_IMIN //#define ENDSTOPPULLUP_JMIN //#define ENDSTOPPULLUP_KMIN //#define ENDSTOPPULLUP_UMIN //#define ENDSTOPPULLUP_VMIN //#define ENDSTOPPULLUP_WMIN //#define ENDSTOPPULLUP_XMAX //#define ENDSTOPPULLUP_YMAX //#define ENDSTOPPULLUP_ZMAX //#define ENDSTOPPULLUP_IMAX //#define ENDSTOPPULLUP_JMAX //#define ENDSTOPPULLUP_KMAX //#define ENDSTOPPULLUP_UMAX //#define ENDSTOPPULLUP_VMAX //#define ENDSTOPPULLUP_WMAX

define ENDSTOPPULLUP_ZMIN_PROBE

endif

..................................

// Mechanical endstop with COM to ground and NC to Signal uses "false" here (most common setup).

define X_MIN_ENDSTOP_INVERTING false // Set to true to invert the logic of the endstop.

define Y_MIN_ENDSTOP_INVERTING false // Set to true to invert the logic of the endstop.

define Z_MIN_ENDSTOP_INVERTING true // Set to true to invert the logic of the endstop.

define I_MIN_ENDSTOP_INVERTING false // Set to true to invert the logic of the endstop.

define J_MIN_ENDSTOP_INVERTING false // Set to true to invert the logic of the endstop.

define K_MIN_ENDSTOP_INVERTING false // Set to true to invert the logic of the endstop.

define U_MIN_ENDSTOP_INVERTING false // Set to true to invert the logic of the endstop.

define V_MIN_ENDSTOP_INVERTING false // Set to true to invert the logic of the endstop.

define W_MIN_ENDSTOP_INVERTING false // Set to true to invert the logic of the endstop.

define X_MAX_ENDSTOP_INVERTING false // Set to true to invert the logic of the endstop.

define Y_MAX_ENDSTOP_INVERTING false // Set to true to invert the logic of the endstop.

define Z_MAX_ENDSTOP_INVERTING false // Set to true to invert the logic of the endstop.

define I_MAX_ENDSTOP_INVERTING false // Set to true to invert the logic of the endstop.

define J_MAX_ENDSTOP_INVERTING false // Set to true to invert the logic of the endstop.

define K_MAX_ENDSTOP_INVERTING false // Set to true to invert the logic of the endstop.

define U_MAX_ENDSTOP_INVERTING false // Set to true to invert the logic of the endstop.

define V_MAX_ENDSTOP_INVERTING false // Set to true to invert the logic of the endstop.

define W_MAX_ENDSTOP_INVERTING false // Set to true to invert the logic of the endstop.

define Z_MIN_PROBE_ENDSTOP_INVERTING true // Set to true to invert the logic of the probe.

en Z Probe Options utilizo esto

//#define Z_MIN_PROBE_USES_Z_MIN_ENDSTOP_PIN

// Force the use of the probe for Z-axis homing

define USE_PROBE_FOR_Z_HOMING

Z_MIN_PROBE_PIN

..........................................................................................

• Define this pin if the probe is not connected to Z_MIN_PIN.
• If not defined the default pin for the selected MOTHERBOARD
• will be used. Most of the time the default is what you want.
• • The simplest option is to use a free endstop connector.
• • Use 5V for powered (usually inductive) sensors.
• • RAMPS 1.3/1.4 boards may use the 5V, GND, and Aux4->D32 pin:
• • For simple switches connect...
• • normally-closed switches to GND and D32.
• • normally-open switches to 5V and D32. */

    define Z_MIN_PROBE_PIN P0_10 // Pin 32 is the RAMPS defaul

    ..............................................................................................................

    define FIX_MOUNTED_PROBE

............................................................................ /**

• Probe Enable / Disable
• The probe only provides a triggered signal when enabled. */

  define PROBE_ENABLE_DISABLE

  if ENABLED(PROBE_ENABLE_DISABLE)

  define PROBE_ENABLE_PIN P2_00 // Override the default pin here

  endif

_conecte la impresora 3d a pronter face y ejecute el comando M119, si la sonda esta retraída el estado del z_probe será disparado. si aplica el comando M401 y la sonda desplegara la punta, vuelva a ejecutar el M119 y vera el estado de zprobe abierto. si esto le funciona ejecute el g28 debería funcionar la sonda. saludos