Implement USE_CONTROLLER_FAN as a feature

Marlin/Conditionals_post.h

 
   // Other fans
   #define HAS_FAN0 (PIN_EXISTS(FAN))
-  #define HAS_FAN1 (PIN_EXISTS(FAN1) && CONTROLLERFAN_PIN != FAN1_PIN && E0_AUTO_FAN_PIN != FAN1_PIN && E1_AUTO_FAN_PIN != FAN1_PIN && E2_AUTO_FAN_PIN != FAN1_PIN && E3_AUTO_FAN_PIN != FAN1_PIN)
-  #define HAS_FAN2 (PIN_EXISTS(FAN2) && CONTROLLERFAN_PIN != FAN2_PIN && E0_AUTO_FAN_PIN != FAN2_PIN && E1_AUTO_FAN_PIN != FAN2_PIN && E2_AUTO_FAN_PIN != FAN2_PIN && E3_AUTO_FAN_PIN != FAN2_PIN)
-  #define HAS_CONTROLLERFAN (PIN_EXISTS(CONTROLLERFAN))
+  #define HAS_FAN1 (PIN_EXISTS(FAN1) && CONTROLLER_FAN_PIN != FAN1_PIN && E0_AUTO_FAN_PIN != FAN1_PIN && E1_AUTO_FAN_PIN != FAN1_PIN && E2_AUTO_FAN_PIN != FAN1_PIN && E3_AUTO_FAN_PIN != FAN1_PIN)
+  #define HAS_FAN2 (PIN_EXISTS(FAN2) && CONTROLLER_FAN_PIN != FAN2_PIN && E0_AUTO_FAN_PIN != FAN2_PIN && E1_AUTO_FAN_PIN != FAN2_PIN && E2_AUTO_FAN_PIN != FAN2_PIN && E3_AUTO_FAN_PIN != FAN2_PIN)
+  #define HAS_CONTROLLER_FAN (PIN_EXISTS(CONTROLLER_FAN))
 
   // Servos
   #define HAS_SERVOS (defined(NUM_SERVOS) && NUM_SERVOS > 0)

Marlin/Configuration_adv.h

 #define TEMP_SENSOR_AD595_OFFSET 0.0
 #define TEMP_SENSOR_AD595_GAIN   1.0
 
-//This is for controlling a fan to cool down the stepper drivers
-//it will turn on when any driver is enabled
-//and turn off after the set amount of seconds from last driver being disabled again
-#define CONTROLLERFAN_PIN -1 //Pin used for the fan to cool controller (-1 to disable)
-#define CONTROLLERFAN_SECS 60 //How many seconds, after all motors were disabled, the fan should run
-#define CONTROLLERFAN_SPEED 255  // == full speed
+/**
+ * Controller Fan
+ * To cool down the stepper drivers and MOSFETs.
+ *
+ * The fan will turn on automatically whenever any stepper is enabled
+ * and turn off after a set period after all steppers are turned off.
+ */
+//#define USE_CONTROLLER_FAN
+#if ENABLED(USE_CONTROLLER_FAN)
+  //#define CONTROLLER_FAN_PIN FAN1_PIN  // Set a custom pin for the controller fan
+  #define CONTROLLERFAN_SECS 60          // Duration in seconds for the fan to run after all motors are disabled
+  #define CONTROLLERFAN_SPEED 255        // 255 == full speed
+#endif
 
 // When first starting the main fan, run it at full speed for the
 // given number of milliseconds.  This gets the fan spinning reliably

Marlin/Marlin_main.cpp

 
 #endif // BEZIER_CURVE_SUPPORT
 
-#if HAS_CONTROLLERFAN
+#if USE_CONTROLLER_FAN
 
   void controllerFan() {
     static millis_t lastMotorOn = 0, // Last time a motor was turned on
       uint8_t speed = (!lastMotorOn || ELAPSED(ms, lastMotorOn + (CONTROLLERFAN_SECS) * 1000UL)) ? 0 : CONTROLLERFAN_SPEED;
 
       // allows digital or PWM fan output to be used (see M42 handling)
-      WRITE(CONTROLLERFAN_PIN, speed);
-      analogWrite(CONTROLLERFAN_PIN, speed);
+      WRITE(CONTROLLER_FAN_PIN, speed);
+      analogWrite(CONTROLLER_FAN_PIN, speed);
     }
   }
 
-#endif // HAS_CONTROLLERFAN
+#endif // USE_CONTROLLER_FAN
 
 #if ENABLED(MORGAN_SCARA)
 
     }
   #endif
 
-  #if HAS_CONTROLLERFAN
+  #if USE_CONTROLLER_FAN
     controllerFan(); // Check if fan should be turned on to cool stepper drivers down
   #endif
 
     endstops.enable_z_probe(false);
   #endif
 
-  #if HAS_CONTROLLERFAN
-    SET_OUTPUT(CONTROLLERFAN_PIN); //Set pin used for driver cooling fan
+  #if USE_CONTROLLER_FAN
+    SET_OUTPUT(CONTROLLER_FAN_PIN); //Set pin used for driver cooling fan
   #endif
 
   #if HAS_STEPPER_RESET

Marlin/SanityCheck.h

   #error "(min|max)_software_endstops are now (MIN|MAX)_SOFTWARE_ENDSTOPS. Please update your configuration."
 #elif ENABLED(Z_PROBE_SLED) && defined(SLED_PIN)
   #error "Replace SLED_PIN with SOL1_PIN (applies to both Z_PROBE_SLED and SOLENOID_PROBE)."
+#elif defined(CONTROLLERFAN_PIN)
+  #error "CONTROLLERFAN_PIN is now CONTROLLER_FAN_PIN, enabled with USE_CONTROLLER_FAN. Please update your Configuration_adv.h."
 #endif
 
 /**
   #endif
 #endif
 
-#if HAS_FAN0 && CONTROLLERFAN_PIN == FAN_PIN
-  #error "You cannot set CONTROLLERFAN_PIN equal to FAN_PIN."
+#if HAS_FAN0 && CONTROLLER_FAN_PIN == FAN_PIN
+  #error "You cannot set CONTROLLER_FAN_PIN equal to FAN_PIN."
 #endif
 
-#if HAS_CONTROLLERFAN
-  #if E0_AUTO_FAN_PIN == CONTROLLERFAN_PIN
-    #error "You cannot set E0_AUTO_FAN_PIN equal to CONTROLLERFAN_PIN."
-  #elif E1_AUTO_FAN_PIN == CONTROLLERFAN_PIN
-    #error "You cannot set E1_AUTO_FAN_PIN equal to CONTROLLERFAN_PIN."
-  #elif E2_AUTO_FAN_PIN == CONTROLLERFAN_PIN
-    #error "You cannot set E2_AUTO_FAN_PIN equal to CONTROLLERFAN_PIN."
-  #elif E3_AUTO_FAN_PIN == CONTROLLERFAN_PIN
-    #error "You cannot set E3_AUTO_FAN_PIN equal to CONTROLLERFAN_PIN."
+#if USE_CONTROLLER_FAN
+  #if !HAS_CONTROLLER_FAN
+    #error "USE_CONTROLLER_FAN requires a CONTROLLER_FAN_PIN. Define in Configuration_adv.h."
+  #elif E0_AUTO_FAN_PIN == CONTROLLER_FAN_PIN
+    #error "You cannot set E0_AUTO_FAN_PIN equal to CONTROLLER_FAN_PIN."
+  #elif E1_AUTO_FAN_PIN == CONTROLLER_FAN_PIN
+    #error "You cannot set E1_AUTO_FAN_PIN equal to CONTROLLER_FAN_PIN."
+  #elif E2_AUTO_FAN_PIN == CONTROLLER_FAN_PIN
+    #error "You cannot set E2_AUTO_FAN_PIN equal to CONTROLLER_FAN_PIN."
+  #elif E3_AUTO_FAN_PIN == CONTROLLER_FAN_PIN
+    #error "You cannot set E3_AUTO_FAN_PIN equal to CONTROLLER_FAN_PIN."
   #endif
 #endif
 

Marlin/example_configurations/Cartesio/Configuration_adv.h

 #define TEMP_SENSOR_AD595_OFFSET 3.0
 #define TEMP_SENSOR_AD595_GAIN   2.0
 
-//This is for controlling a fan to cool down the stepper drivers
-//it will turn on when any driver is enabled
-//and turn off after the set amount of seconds from last driver being disabled again
-#define CONTROLLERFAN_PIN -1 //Pin used for the fan to cool controller (-1 to disable)
-#define CONTROLLERFAN_SECS 60 //How many seconds, after all motors were disabled, the fan should run
-#define CONTROLLERFAN_SPEED 255  // == full speed
+/**
+ * Controller Fan
+ * To cool down the stepper drivers and MOSFETs.
+ *
+ * The fan will turn on automatically whenever any stepper is enabled
+ * and turn off after a set period after all steppers are turned off.
+ */
+//#define USE_CONTROLLER_FAN
+#if ENABLED(USE_CONTROLLER_FAN)
+  //#define CONTROLLER_FAN_PIN FAN1_PIN  // Set a custom pin for the controller fan
+  #define CONTROLLERFAN_SECS 60          // Duration in seconds for the fan to run after all motors are disabled
+  #define CONTROLLERFAN_SPEED 255        // 255 == full speed
+#endif
 
 // When first starting the main fan, run it at full speed for the
 // given number of milliseconds.  This gets the fan spinning reliably

Marlin/example_configurations/Felix/Configuration_adv.h

 #define TEMP_SENSOR_AD595_OFFSET 0.0
 #define TEMP_SENSOR_AD595_GAIN   1.0
 
-//This is for controlling a fan to cool down the stepper drivers
-//it will turn on when any driver is enabled
-//and turn off after the set amount of seconds from last driver being disabled again
-#define CONTROLLERFAN_PIN -1 //Pin used for the fan to cool controller (-1 to disable)
-#define CONTROLLERFAN_SECS 60 //How many seconds, after all motors were disabled, the fan should run
-#define CONTROLLERFAN_SPEED 255  // == full speed
+/**
+ * Controller Fan
+ * To cool down the stepper drivers and MOSFETs.
+ *
+ * The fan will turn on automatically whenever any stepper is enabled
+ * and turn off after a set period after all steppers are turned off.
+ */
+//#define USE_CONTROLLER_FAN
+#if ENABLED(USE_CONTROLLER_FAN)
+  //#define CONTROLLER_FAN_PIN FAN1_PIN  // Set a custom pin for the controller fan
+  #define CONTROLLERFAN_SECS 60          // Duration in seconds for the fan to run after all motors are disabled
+  #define CONTROLLERFAN_SPEED 255        // 255 == full speed
+#endif
 
 // When first starting the main fan, run it at full speed for the
 // given number of milliseconds.  This gets the fan spinning reliably

Marlin/example_configurations/FolgerTech-i3-2020/Configuration_adv.h

 #define TEMP_SENSOR_AD595_OFFSET 0.0
 #define TEMP_SENSOR_AD595_GAIN   1.0
 
-//This is for controlling a fan to cool down the stepper drivers
-//it will turn on when any driver is enabled
-//and turn off after the set amount of seconds from last driver being disabled again
-#define CONTROLLERFAN_PIN -1 //Pin used for the fan to cool controller (-1 to disable)
-#define CONTROLLERFAN_SECS 60 //How many seconds, after all motors were disabled, the fan should run
-#define CONTROLLERFAN_SPEED 255  // == full speed
+/**
+ * Controller Fan
+ * To cool down the stepper drivers and MOSFETs.
+ *
+ * The fan will turn on automatically whenever any stepper is enabled
+ * and turn off after a set period after all steppers are turned off.
+ */
+//#define USE_CONTROLLER_FAN
+#if ENABLED(USE_CONTROLLER_FAN)
+  //#define CONTROLLER_FAN_PIN FAN1_PIN  // Set a custom pin for the controller fan
+  #define CONTROLLERFAN_SECS 60          // Duration in seconds for the fan to run after all motors are disabled
+  #define CONTROLLERFAN_SPEED 255        // 255 == full speed
+#endif
 
 // When first starting the main fan, run it at full speed for the
 // given number of milliseconds.  This gets the fan spinning reliably

Marlin/example_configurations/Hephestos/Configuration_adv.h

 #define TEMP_SENSOR_AD595_OFFSET 0.0
 #define TEMP_SENSOR_AD595_GAIN   1.0
 
-//This is for controlling a fan to cool down the stepper drivers
-//it will turn on when any driver is enabled
-//and turn off after the set amount of seconds from last driver being disabled again
-#define CONTROLLERFAN_PIN -1 //Pin used for the fan to cool controller (-1 to disable)
-#define CONTROLLERFAN_SECS 60 //How many seconds, after all motors were disabled, the fan should run
-#define CONTROLLERFAN_SPEED 255  // == full speed
+/**
+ * Controller Fan
+ * To cool down the stepper drivers and MOSFETs.
+ *
+ * The fan will turn on automatically whenever any stepper is enabled
+ * and turn off after a set period after all steppers are turned off.
+ */
+//#define USE_CONTROLLER_FAN
+#if ENABLED(USE_CONTROLLER_FAN)
+  //#define CONTROLLER_FAN_PIN FAN1_PIN  // Set a custom pin for the controller fan
+  #define CONTROLLERFAN_SECS 60          // Duration in seconds for the fan to run after all motors are disabled
+  #define CONTROLLERFAN_SPEED 255        // 255 == full speed
+#endif
 
 // When first starting the main fan, run it at full speed for the
 // given number of milliseconds.  This gets the fan spinning reliably

Marlin/example_configurations/Hephestos_2/Configuration_adv.h

 #define TEMP_SENSOR_AD595_OFFSET 0.0
 #define TEMP_SENSOR_AD595_GAIN   1.0
 
-//This is for controlling a fan to cool down the stepper drivers
-//it will turn on when any driver is enabled
-//and turn off after the set amount of seconds from last driver being disabled again
-#define CONTROLLERFAN_PIN -1 //Pin used for the fan to cool controller (-1 to disable)
-#define CONTROLLERFAN_SECS 60 //How many seconds, after all motors were disabled, the fan should run
-#define CONTROLLERFAN_SPEED 255  // == full speed
+/**
+ * Controller Fan
+ * To cool down the stepper drivers and MOSFETs.
+ *
+ * The fan will turn on automatically whenever any stepper is enabled
+ * and turn off after a set period after all steppers are turned off.
+ */
+//#define USE_CONTROLLER_FAN
+#if ENABLED(USE_CONTROLLER_FAN)
+  //#define CONTROLLER_FAN_PIN FAN1_PIN  // Set a custom pin for the controller fan
+  #define CONTROLLERFAN_SECS 60          // Duration in seconds for the fan to run after all motors are disabled
+  #define CONTROLLERFAN_SPEED 255        // 255 == full speed
+#endif
 
 // When first starting the main fan, run it at full speed for the
 // given number of milliseconds.  This gets the fan spinning reliably

Marlin/example_configurations/K8200/Configuration_adv.h

 #define TEMP_SENSOR_AD595_OFFSET 0.0
 #define TEMP_SENSOR_AD595_GAIN   1.0
 
-//This is for controlling a fan to cool down the stepper drivers
-//it will turn on when any driver is enabled
-//and turn off after the set amount of seconds from last driver being disabled again
-#define CONTROLLERFAN_PIN -1 //Pin used for the fan to cool controller (-1 to disable)
-#define CONTROLLERFAN_SECS 60 //How many seconds, after all motors were disabled, the fan should run
-#define CONTROLLERFAN_SPEED 255  // == full speed
+/**
+ * Controller Fan
+ * To cool down the stepper drivers and MOSFETs.
+ *
+ * The fan will turn on automatically whenever any stepper is enabled
+ * and turn off after a set period after all steppers are turned off.
+ */
+//#define USE_CONTROLLER_FAN
+#if ENABLED(USE_CONTROLLER_FAN)
+  //#define CONTROLLER_FAN_PIN FAN1_PIN  // Set a custom pin for the controller fan
+  #define CONTROLLERFAN_SECS 60          // Duration in seconds for the fan to run after all motors are disabled
+  #define CONTROLLERFAN_SPEED 255        // 255 == full speed
+#endif
 
 // When first starting the main fan, run it at full speed for the
 // given number of milliseconds.  This gets the fan spinning reliably

Marlin/example_configurations/K8400/Configuration_adv.h

 #define TEMP_SENSOR_AD595_OFFSET 0.0
 #define TEMP_SENSOR_AD595_GAIN   1.0
 
-//This is for controlling a fan to cool down the stepper drivers
-//it will turn on when any driver is enabled
-//and turn off after the set amount of seconds from last driver being disabled again
-#define CONTROLLERFAN_PIN 2 //Pin used for the fan to cool controller (-1 to disable)
-#define CONTROLLERFAN_SECS 60 //How many seconds, after all motors were disabled, the fan should run
-#define CONTROLLERFAN_SPEED 255  // == full speed
+/**
+ * Controller Fan
+ * To cool down the stepper drivers and MOSFETs.
+ *
+ * The fan will turn on automatically whenever any stepper is enabled
+ * and turn off after a set period after all steppers are turned off.
+ */
+#define USE_CONTROLLER_FAN
+#if ENABLED(USE_CONTROLLER_FAN)
+  #define CONTROLLER_FAN_PIN 2           // Set a custom pin for the controller fan
+  #define CONTROLLERFAN_SECS 60          // Duration in seconds for the fan to run after all motors are disabled
+  #define CONTROLLERFAN_SPEED 255        // 255 == full speed
+#endif
 
 // When first starting the main fan, run it at full speed for the
 // given number of milliseconds.  This gets the fan spinning reliably

Marlin/example_configurations/RigidBot/Configuration_adv.h

 #define TEMP_SENSOR_AD595_OFFSET 0.0
 #define TEMP_SENSOR_AD595_GAIN   1.0
 
-//This is for controlling a fan to cool down the stepper drivers
-//it will turn on when any driver is enabled
-//and turn off after the set amount of seconds from last driver being disabled again
-#define CONTROLLERFAN_PIN 4 // RigidBot: Fans/Water Pump to cool the hotend cool side.
-#define CONTROLLERFAN_SECS 60 //How many seconds, after all motors were disabled, the fan should run
-#define CONTROLLERFAN_SPEED 255  // == full speed
+/**
+ * Controller Fan
+ * To cool down the stepper drivers and MOSFETs.
+ *
+ * The fan will turn on automatically whenever any stepper is enabled
+ * and turn off after a set period after all steppers are turned off.
+ */
+#define USE_CONTROLLER_FAN
+#if ENABLED(USE_CONTROLLER_FAN)
+  #define CONTROLLER_FAN_PIN 4           // Set a custom pin for the controller fan
+  #define CONTROLLERFAN_SECS 60          // Duration in seconds for the fan to run after all motors are disabled
+  #define CONTROLLERFAN_SPEED 255        // 255 == full speed
+#endif
 
 // When first starting the main fan, run it at full speed for the
 // given number of milliseconds.  This gets the fan spinning reliably

Marlin/example_configurations/SCARA/Configuration_adv.h

 #define TEMP_SENSOR_AD595_OFFSET 0.0
 #define TEMP_SENSOR_AD595_GAIN   1.0
 
-//This is for controlling a fan to cool down the stepper drivers
-//it will turn on when any driver is enabled
-//and turn off after the set amount of seconds from last driver being disabled again
-#define CONTROLLERFAN_PIN -1 //Pin used for the fan to cool controller (-1 to disable)
-#define CONTROLLERFAN_SECS 60 //How many seconds, after all motors were disabled, the fan should run
-#define CONTROLLERFAN_SPEED 255  // == full speed
+/**
+ * Controller Fan
+ * To cool down the stepper drivers and MOSFETs.
+ *
+ * The fan will turn on automatically whenever any stepper is enabled
+ * and turn off after a set period after all steppers are turned off.
+ */
+//#define USE_CONTROLLER_FAN
+#if ENABLED(USE_CONTROLLER_FAN)
+  //#define CONTROLLER_FAN_PIN FAN1_PIN  // Set a custom pin for the controller fan
+  #define CONTROLLERFAN_SECS 60          // Duration in seconds for the fan to run after all motors are disabled
+  #define CONTROLLERFAN_SPEED 255        // 255 == full speed
+#endif
 
 // When first starting the main fan, run it at full speed for the
 // given number of milliseconds.  This gets the fan spinning reliably

Marlin/example_configurations/TAZ4/Configuration_adv.h

 #define TEMP_SENSOR_AD595_OFFSET 0.0
 #define TEMP_SENSOR_AD595_GAIN   1.0
 
-//This is for controlling a fan to cool down the stepper drivers
-//it will turn on when any driver is enabled
-//and turn off after the set amount of seconds from last driver being disabled again
-
-/**********************************************************
-  Fan Pins
-  Fan_0 8 - Extruder 0 fan
-  Fan_1 6 - Extruder 1 fan
-  Fan_2 2 - Case fan
-***********************************************************/
-
-#define CONTROLLERFAN_PIN 2 //Pin used for the fan to cool controller (-1 to disable)
-#define CONTROLLERFAN_SECS 60 //How many seconds, after all motors were disabled, the fan should run
-#define CONTROLLERFAN_SPEED 130  // 255 == full speed
+/**
+ * Controller Fan
+ * To cool down the stepper drivers and MOSFETs.
+ *
+ * The fan will turn on automatically whenever any stepper is enabled
+ * and turn off after a set period after all steppers are turned off.
+ */
+#define USE_CONTROLLER_FAN
+#if ENABLED(USE_CONTROLLER_FAN)
+  #define CONTROLLER_FAN_PIN 2           // Set a custom pin for the controller fan
+  #define CONTROLLERFAN_SECS 60          // Duration in seconds for the fan to run after all motors are disabled
+  #define CONTROLLERFAN_SPEED 130        // 255 == full speed
+#endif
 
 // When first starting the main fan, run it at full speed for the
 // given number of milliseconds.  This gets the fan spinning reliably

Marlin/example_configurations/TinyBoy2/Configuration_adv.h

 #define TEMP_SENSOR_AD595_OFFSET 0.0
 #define TEMP_SENSOR_AD595_GAIN   1.0
 
-//This is for controlling a fan to cool down the stepper drivers
-//it will turn on when any driver is enabled
-//and turn off after the set amount of seconds from last driver being disabled again
-#define CONTROLLERFAN_PIN -1 //Pin used for the fan to cool controller (-1 to disable)
-#define CONTROLLERFAN_SECS 60 //How many seconds, after all motors were disabled, the fan should run
-#define CONTROLLERFAN_SPEED 255  // == full speed
+/**
+ * Controller Fan
+ * To cool down the stepper drivers and MOSFETs.
+ *
+ * The fan will turn on automatically whenever any stepper is enabled
+ * and turn off after a set period after all steppers are turned off.
+ */
+//#define USE_CONTROLLER_FAN
+#if ENABLED(USE_CONTROLLER_FAN)
+  //#define CONTROLLER_FAN_PIN FAN1_PIN  // Set a custom pin for the controller fan
+  #define CONTROLLERFAN_SECS 60          // Duration in seconds for the fan to run after all motors are disabled
+  #define CONTROLLERFAN_SPEED 255        // 255 == full speed
+#endif
 
 // When first starting the main fan, run it at full speed for the
 // given number of milliseconds.  This gets the fan spinning reliably

Marlin/example_configurations/WITBOX/Configuration_adv.h

 #define TEMP_SENSOR_AD595_OFFSET 0.0
 #define TEMP_SENSOR_AD595_GAIN   1.0
 
-//This is for controlling a fan to cool down the stepper drivers
-//it will turn on when any driver is enabled
-//and turn off after the set amount of seconds from last driver being disabled again
-#define CONTROLLERFAN_PIN -1 //Pin used for the fan to cool controller (-1 to disable)
-#define CONTROLLERFAN_SECS 60 //How many seconds, after all motors were disabled, the fan should run
-#define CONTROLLERFAN_SPEED 255  // == full speed
+/**
+ * Controller Fan
+ * To cool down the stepper drivers and MOSFETs.
+ *
+ * The fan will turn on automatically whenever any stepper is enabled
+ * and turn off after a set period after all steppers are turned off.
+ */
+//#define USE_CONTROLLER_FAN
+#if ENABLED(USE_CONTROLLER_FAN)
+  //#define CONTROLLER_FAN_PIN FAN1_PIN  // Set a custom pin for the controller fan
+  #define CONTROLLERFAN_SECS 60          // Duration in seconds for the fan to run after all motors are disabled
+  #define CONTROLLERFAN_SPEED 255        // 255 == full speed
+#endif
 
 // When first starting the main fan, run it at full speed for the
 // given number of milliseconds.  This gets the fan spinning reliably

Marlin/example_configurations/delta/FLSUN/auto_calibrate/Configuration_adv.h

 #define TEMP_SENSOR_AD595_OFFSET 0.0
 #define TEMP_SENSOR_AD595_GAIN   1.0
 
-//This is for controlling a fan to cool down the stepper drivers
-//it will turn on when any driver is enabled
-//and turn off after the set amount of seconds from last driver being disabled again
-#define CONTROLLERFAN_PIN -1 //Pin used for the fan to cool controller (-1 to disable)
-#define CONTROLLERFAN_SECS 60 //How many seconds, after all motors were disabled, the fan should run
-#define CONTROLLERFAN_SPEED 255  // == full speed
+/**
+ * Controller Fan
+ * To cool down the stepper drivers and MOSFETs.
+ *
+ * The fan will turn on automatically whenever any stepper is enabled
+ * and turn off after a set period after all steppers are turned off.
+ */
+//#define USE_CONTROLLER_FAN
+#if ENABLED(USE_CONTROLLER_FAN)
+  //#define CONTROLLER_FAN_PIN FAN1_PIN  // Set a custom pin for the controller fan
+  #define CONTROLLERFAN_SECS 60          // Duration in seconds for the fan to run after all motors are disabled
+  #define CONTROLLERFAN_SPEED 255        // 255 == full speed
+#endif
 
 // When first starting the main fan, run it at full speed for the
 // given number of milliseconds.  This gets the fan spinning reliably

Marlin/example_configurations/delta/FLSUN/kossel_mini/Configuration_adv.h

 #define TEMP_SENSOR_AD595_OFFSET 0.0
 #define TEMP_SENSOR_AD595_GAIN   1.0
 
-//This is for controlling a fan to cool down the stepper drivers
-//it will turn on when any driver is enabled
-//and turn off after the set amount of seconds from last driver being disabled again
-#define CONTROLLERFAN_PIN -1 //Pin used for the fan to cool controller (-1 to disable)
-#define CONTROLLERFAN_SECS 60 //How many seconds, after all motors were disabled, the fan should run
-#define CONTROLLERFAN_SPEED 255  // == full speed
+/**
+ * Controller Fan
+ * To cool down the stepper drivers and MOSFETs.
+ *
+ * The fan will turn on automatically whenever any stepper is enabled
+ * and turn off after a set period after all steppers are turned off.
+ */
+//#define USE_CONTROLLER_FAN
+#if ENABLED(USE_CONTROLLER_FAN)
+  //#define CONTROLLER_FAN_PIN FAN1_PIN  // Set a custom pin for the controller fan
+  #define CONTROLLERFAN_SECS 60          // Duration in seconds for the fan to run after all motors are disabled
+  #define CONTROLLERFAN_SPEED 255        // 255 == full speed
+#endif
 
 // When first starting the main fan, run it at full speed for the
 // given number of milliseconds.  This gets the fan spinning reliably

Marlin/example_configurations/delta/generic/Configuration_adv.h

 #define TEMP_SENSOR_AD595_OFFSET 0.0
 #define TEMP_SENSOR_AD595_GAIN   1.0
 
-//This is for controlling a fan to cool down the stepper drivers
-//it will turn on when any driver is enabled
-//and turn off after the set amount of seconds from last driver being disabled again
-#define CONTROLLERFAN_PIN -1 //Pin used for the fan to cool controller (-1 to disable)
-#define CONTROLLERFAN_SECS 60 //How many seconds, after all motors were disabled, the fan should run
-#define CONTROLLERFAN_SPEED 255  // == full speed
+/**
+ * Controller Fan
+ * To cool down the stepper drivers and MOSFETs.
+ *
+ * The fan will turn on automatically whenever any stepper is enabled
+ * and turn off after a set period after all steppers are turned off.
+ */
+//#define USE_CONTROLLER_FAN
+#if ENABLED(USE_CONTROLLER_FAN)
+  //#define CONTROLLER_FAN_PIN FAN1_PIN  // Set a custom pin for the controller fan
+  #define CONTROLLERFAN_SECS 60          // Duration in seconds for the fan to run after all motors are disabled
+  #define CONTROLLERFAN_SPEED 255        // 255 == full speed
+#endif
 
 // When first starting the main fan, run it at full speed for the
 // given number of milliseconds.  This gets the fan spinning reliably

Marlin/example_configurations/delta/kossel_mini/Configuration_adv.h

 #define TEMP_SENSOR_AD595_OFFSET 0.0
 #define TEMP_SENSOR_AD595_GAIN   1.0
 
-//This is for controlling a fan to cool down the stepper drivers
-//it will turn on when any driver is enabled
-//and turn off after the set amount of seconds from last driver being disabled again
-#define CONTROLLERFAN_PIN -1 //Pin used for the fan to cool controller (-1 to disable)
-#define CONTROLLERFAN_SECS 60 //How many seconds, after all motors were disabled, the fan should run
-#define CONTROLLERFAN_SPEED 255  // == full speed
+/**
+ * Controller Fan
+ * To cool down the stepper drivers and MOSFETs.
+ *
+ * The fan will turn on automatically whenever any stepper is enabled
+ * and turn off after a set period after all steppers are turned off.
+ */
+//#define USE_CONTROLLER_FAN
+#if ENABLED(USE_CONTROLLER_FAN)
+  //#define CONTROLLER_FAN_PIN FAN1_PIN  // Set a custom pin for the controller fan
+  #define CONTROLLERFAN_SECS 60          // Duration in seconds for the fan to run after all motors are disabled
+  #define CONTROLLERFAN_SPEED 255        // 255 == full speed
+#endif
 
 // When first starting the main fan, run it at full speed for the
 // given number of milliseconds.  This gets the fan spinning reliably

Marlin/example_configurations/delta/kossel_pro/Configuration_adv.h

 #define TEMP_SENSOR_AD595_OFFSET 0.0
 #define TEMP_SENSOR_AD595_GAIN   1.0
 
-//This is for controlling a fan to cool down the stepper drivers
-//it will turn on when any driver is enabled
-//and turn off after the set amount of seconds from last driver being disabled again
-#define CONTROLLERFAN_PIN -1 //Pin used for the fan to cool controller (-1 to disable)
-#define CONTROLLERFAN_SECS 60 //How many seconds, after all motors were disabled, the fan should run
-#define CONTROLLERFAN_SPEED 255  // == full speed
+/**
+ * Controller Fan
+ * To cool down the stepper drivers and MOSFETs.
+ *
+ * The fan will turn on automatically whenever any stepper is enabled
+ * and turn off after a set period after all steppers are turned off.
+ */
+//#define USE_CONTROLLER_FAN
+#if ENABLED(USE_CONTROLLER_FAN)
+  //#define CONTROLLER_FAN_PIN FAN1_PIN  // Set a custom pin for the controller fan
+  #define CONTROLLERFAN_SECS 60          // Duration in seconds for the fan to run after all motors are disabled
+  #define CONTROLLERFAN_SPEED 255        // 255 == full speed
+#endif
 
 // When first starting the main fan, run it at full speed for the
 // given number of milliseconds.  This gets the fan spinning reliably

Marlin/example_configurations/delta/kossel_xl/Configuration_adv.h

 #define TEMP_SENSOR_AD595_OFFSET 0.0
 #define TEMP_SENSOR_AD595_GAIN   1.0
 
-//This is for controlling a fan to cool down the stepper drivers
-//it will turn on when any driver is enabled
-//and turn off after the set amount of seconds from last driver being disabled again
-#define CONTROLLERFAN_PIN -1 //Pin used for the fan to cool controller (-1 to disable)
-#define CONTROLLERFAN_SECS 60 //How many seconds, after all motors were disabled, the fan should run
-#define CONTROLLERFAN_SPEED 255  // == full speed
+/**
+ * Controller Fan
+ * To cool down the stepper drivers and MOSFETs.
+ *
+ * The fan will turn on automatically whenever any stepper is enabled
+ * and turn off after a set period after all steppers are turned off.
+ */
+//#define USE_CONTROLLER_FAN
+#if ENABLED(USE_CONTROLLER_FAN)
+  //#define CONTROLLER_FAN_PIN FAN1_PIN  // Set a custom pin for the controller fan
+  #define CONTROLLERFAN_SECS 60          // Duration in seconds for the fan to run after all motors are disabled
+  #define CONTROLLERFAN_SPEED 255        // 255 == full speed
+#endif
 
 // When first starting the main fan, run it at full speed for the
 // given number of milliseconds.  This gets the fan spinning reliably

Marlin/example_configurations/gCreate_gMax1.5+/Configuration_adv.h

 #define TEMP_SENSOR_AD595_OFFSET 0.0
 #define TEMP_SENSOR_AD595_GAIN   1.0
 
-//This is for controlling a fan to cool down the stepper drivers
-//it will turn on when any driver is enabled
-//and turn off after the set amount of seconds from last driver being disabled again
-#define CONTROLLERFAN_PIN -1 //Pin used for the fan to cool controller (-1 to disable)
-#define CONTROLLERFAN_SECS 60 //How many seconds, after all motors were disabled, the fan should run
-#define CONTROLLERFAN_SPEED 255  // == full speed
+/**
+ * Controller Fan
+ * To cool down the stepper drivers and MOSFETs.
+ *
+ * The fan will turn on automatically whenever any stepper is enabled
+ * and turn off after a set period after all steppers are turned off.
+ */
+//#define USE_CONTROLLER_FAN
+#if ENABLED(USE_CONTROLLER_FAN)
+  //#define CONTROLLER_FAN_PIN FAN1_PIN  // Set a custom pin for the controller fan
+  #define CONTROLLERFAN_SECS 60          // Duration in seconds for the fan to run after all motors are disabled
+  #define CONTROLLERFAN_SPEED 255        // 255 == full speed
+#endif
 
 // When first starting the main fan, run it at full speed for the
 // given number of milliseconds.  This gets the fan spinning reliably

Marlin/example_configurations/makibox/Configuration_adv.h

 #define TEMP_SENSOR_AD595_OFFSET 0.0
 #define TEMP_SENSOR_AD595_GAIN   1.0
 
-//This is for controlling a fan to cool down the stepper drivers
-//it will turn on when any driver is enabled
-//and turn off after the set amount of seconds from last driver being disabled again
-#define CONTROLLERFAN_PIN -1 //Pin used for the fan to cool controller (-1 to disable)
-#define CONTROLLERFAN_SECS 60 //How many seconds, after all motors were disabled, the fan should run
-#define CONTROLLERFAN_SPEED 255  // == full speed
+/**
+ * Controller Fan
+ * To cool down the stepper drivers and MOSFETs.
+ *
+ * The fan will turn on automatically whenever any stepper is enabled
+ * and turn off after a set period after all steppers are turned off.
+ */
+//#define USE_CONTROLLER_FAN
+#if ENABLED(USE_CONTROLLER_FAN)
+  //#define CONTROLLER_FAN_PIN FAN1_PIN  // Set a custom pin for the controller fan
+  #define CONTROLLERFAN_SECS 60          // Duration in seconds for the fan to run after all motors are disabled
+  #define CONTROLLERFAN_SPEED 255        // 255 == full speed
+#endif
 
 // When first starting the main fan, run it at full speed for the
 // given number of milliseconds.  This gets the fan spinning reliably

Marlin/example_configurations/tvrrug/Round2/Configuration_adv.h

 #define TEMP_SENSOR_AD595_OFFSET 0.0
 #define TEMP_SENSOR_AD595_GAIN   1.0
 
-//This is for controlling a fan to cool down the stepper drivers
-//it will turn on when any driver is enabled
-//and turn off after the set amount of seconds from last driver being disabled again
-#define CONTROLLERFAN_PIN 23 //Pin used for the fan to cool controller (-1 to disable)
-#define CONTROLLERFAN_SECS 60 //How many seconds, after all motors were disabled, the fan should run
-#define CONTROLLERFAN_SPEED 255  // == full speed
+/**
+ * Controller Fan
+ * To cool down the stepper drivers and MOSFETs.
+ *
+ * The fan will turn on automatically whenever any stepper is enabled
+ * and turn off after a set period after all steppers are turned off.
+ */
+#define USE_CONTROLLER_FAN
+#if ENABLED(USE_CONTROLLER_FAN)
+  #define CONTROLLER_FAN_PIN 23          // Set a custom pin for the controller fan
+  #define CONTROLLERFAN_SECS 60          // Duration in seconds for the fan to run after all motors are disabled
+  #define CONTROLLERFAN_SPEED 255        // 255 == full speed
+#endif
 
 // When first starting the main fan, run it at full speed for the
 // given number of milliseconds.  This gets the fan spinning reliably

Marlin/example_configurations/wt150/Configuration_adv.h

 #define TEMP_SENSOR_AD595_OFFSET 0.0
 #define TEMP_SENSOR_AD595_GAIN   1.0
 
-//This is for controlling a fan to cool down the stepper drivers
-//it will turn on when any driver is enabled
-//and turn off after the set amount of seconds from last driver being disabled again
-#define CONTROLLERFAN_PIN -1 //Pin used for the fan to cool controller (-1 to disable)
-#define CONTROLLERFAN_SECS 60 //How many seconds, after all motors were disabled, the fan should run
-#define CONTROLLERFAN_SPEED 255  // == full speed
+/**
+ * Controller Fan
+ * To cool down the stepper drivers and MOSFETs.
+ *
+ * The fan will turn on automatically whenever any stepper is enabled
+ * and turn off after a set period after all steppers are turned off.
+ */
+//#define USE_CONTROLLER_FAN
+#if ENABLED(USE_CONTROLLER_FAN)
+  //#define CONTROLLER_FAN_PIN FAN1_PIN  // Set a custom pin for the controller fan
+  #define CONTROLLERFAN_SECS 60          // Duration in seconds for the fan to run after all motors are disabled
+  #define CONTROLLERFAN_SPEED 255        // 255 == full speed
+#endif
 
 // When first starting the main fan, run it at full speed for the
 // given number of milliseconds.  This gets the fan spinning reliably

Marlin/pins.h

 #ifndef FAN2_PIN
   #define FAN2_PIN -1
 #endif
-#ifndef CONTROLLERFAN_PIN
-  #define CONTROLLERFAN_PIN  -1
+#ifndef CONTROLLER_FAN_PIN
+  #define CONTROLLER_FAN_PIN  -1
 #endif
 
 #ifndef HEATER_0_PIN
     X_STEP_PIN, X_DIR_PIN, X_ENABLE_PIN, X_MIN_PIN, X_MAX_PIN, \
     Y_STEP_PIN, Y_DIR_PIN, Y_ENABLE_PIN, Y_MIN_PIN, Y_MAX_PIN, \
     Z_STEP_PIN, Z_DIR_PIN, Z_ENABLE_PIN, Z_MIN_PIN, Z_MAX_PIN, Z_MIN_PROBE_PIN, \
-    PS_ON_PIN, HEATER_BED_PIN, FAN_PIN, FAN1_PIN, FAN2_PIN, CONTROLLERFAN_PIN, \
+    PS_ON_PIN, HEATER_BED_PIN, FAN_PIN, FAN1_PIN, FAN2_PIN, CONTROLLER_FAN_PIN, \
     _E0_PINS _E1_PINS _E2_PINS _E3_PINS _E4_PINS BED_PINS \
     _H0_PINS _H1_PINS _H2_PINS _H3_PINS _H4_PINS \
     _X2_PINS _Y2_PINS _Z2_PINS \

Marlin/pinsDebug_list.h

 #if PIN_EXISTS(CASE_LIGHT)
   REPORT_NAME_DIGITAL(CASE_LIGHT_PIN, __LINE__ )
 #endif
-#if PIN_EXISTS(CONTROLLERFAN)
-  REPORT_NAME_DIGITAL(CONTROLLERFAN_PIN, __LINE__ )
+#if PIN_EXISTS(CONTROLLER_FAN)
+  REPORT_NAME_DIGITAL(CONTROLLER_FAN_PIN, __LINE__ )
 #endif
 #if PIN_EXISTS(CUTOFF_RESET)
   REPORT_NAME_DIGITAL(CUTOFF_RESET_PIN, __LINE__ )

Marlin/pins_AZTEEG_X3_PRO.h

 #undef FAN_PIN
 #define FAN_PIN             6 // Part Cooling System
 
-#define CONTROLLERFAN_PIN   4 // Pin used for the fan to cool motherboard (-1 to disable)
+#ifndef CONTROLLER_FAN_PIN
+  #define CONTROLLER_FAN_PIN 4 // Pin used for the fan to cool motherboard (-1 to disable)
+#endif
 
 // Fans/Water Pump to cool the hotend cool side.
 #define ORIG_E0_AUTO_FAN_PIN 5

Marlin/pins_MEGACONTROLLER.h

 #define FAN1_PIN           35
 #define FAN2_PIN           36
 
-#define CONTROLLERFAN_PIN  FAN2_PIN
+#ifndef CONTROLLER_FAN_PIN
+  #define CONTROLLER_FAN_PIN FAN2_PIN
+#endif
 
 #define FAN_SOFT_PWM