Standard methods to wait for heating (#11949)

Marlin/src/feature/pause.cpp

@@ -109,12 +109,7 @@ static bool ensure_safe_temperature(const AdvancedPauseMode mode=ADVANCED_PAUSE_
     UNUSED(mode);
   #endif
 
-  wait_for_heatup = true; // M108 will clear this
+  return thermalManager.wait_for_hotend(active_extruder);
-  while (wait_for_heatup && thermalManager.wait_for_heating(active_extruder)) idle();
-  const bool status = wait_for_heatup;
-  wait_for_heatup = false;
-
-  return status;
 }
 
 static void do_pause_e_move(const float &length, const float &fr) {

Marlin/src/gcode/control/M108_M112_M410.cpp

@@ -31,6 +31,9 @@
  * M108: Stop the waiting for heaters in M109, M190, M303. Does not affect the target temperature.
  */
 void GcodeSuite::M108() {
+  #if HAS_RESUME_CONTINUE
+    wait_for_user = false;
+  #endif
   wait_for_heatup = false;
 }
 

Marlin/src/gcode/feature/pause/M701_M702.cpp

@@ -81,7 +81,7 @@ void GcodeSuite::M701() {
   const float fast_load_length = ABS(parser.seen('L') ? parser.value_axis_units(E_AXIS)
                                                        : filament_change_load_length[active_extruder]);
   load_filament(slow_load_length, fast_load_length, ADVANCED_PAUSE_PURGE_LENGTH, FILAMENT_CHANGE_ALERT_BEEPS,
-                true, thermalManager.wait_for_heating(target_extruder), ADVANCED_PAUSE_MODE_LOAD_FILAMENT
+                true, thermalManager.still_heating(target_extruder), ADVANCED_PAUSE_MODE_LOAD_FILAMENT
                 #if ENABLED(DUAL_X_CARRIAGE)
                   , target_extruder
                 #endif

Marlin/src/gcode/temperature/M104_M109.cpp

@@ -80,14 +80,6 @@ void GcodeSuite::M104() {
  * M109: Sxxx Wait for extruder(s) to reach temperature. Waits only when heating.
  *       Rxxx Wait for extruder(s) to reach temperature. Waits when heating and cooling.
  */
-
-#ifndef MIN_COOLING_SLOPE_DEG
-  #define MIN_COOLING_SLOPE_DEG 1.50
-#endif
-#ifndef MIN_COOLING_SLOPE_TIME
-  #define MIN_COOLING_SLOPE_TIME 60
-#endif
-
 void GcodeSuite::M109() {
 
   if (get_target_extruder_from_command()) return;
@@ -137,110 +129,5 @@ void GcodeSuite::M109() {
     planner.autotemp_M104_M109();
   #endif
 
-  #if TEMP_RESIDENCY_TIME > 0
+  (void)thermalManager.wait_for_hotend(target_extruder, no_wait_for_cooling);
-    millis_t residency_start_ms = 0;
-    // Loop until the temperature has stabilized
-    #define TEMP_CONDITIONS (!residency_start_ms || PENDING(now, residency_start_ms + (TEMP_RESIDENCY_TIME) * 1000UL))
-  #else
-    // Loop until the temperature is very close target
-    #define TEMP_CONDITIONS (wants_to_cool ? thermalManager.isCoolingHotend(target_extruder) : thermalManager.isHeatingHotend(target_extruder))
-  #endif
-
-  float target_temp = -1.0, old_temp = 9999.0;
-  bool wants_to_cool = false;
-  wait_for_heatup = true;
-  millis_t now, next_temp_ms = 0, next_cool_check_ms = 0;
-
-  #if DISABLED(BUSY_WHILE_HEATING)
-    KEEPALIVE_STATE(NOT_BUSY);
-  #endif
-
-  #if ENABLED(PRINTER_EVENT_LEDS)
-    const float start_temp = thermalManager.degHotend(target_extruder);
-    uint8_t old_blue = 0;
-  #endif
-
-  do {
-    // Target temperature might be changed during the loop
-    if (target_temp != thermalManager.degTargetHotend(target_extruder)) {
-      wants_to_cool = thermalManager.isCoolingHotend(target_extruder);
-      target_temp = thermalManager.degTargetHotend(target_extruder);
-
-      // Exit if S<lower>, continue if S<higher>, R<lower>, or R<higher>
-      if (no_wait_for_cooling && wants_to_cool) break;
-    }
-
-    now = millis();
-    if (ELAPSED(now, next_temp_ms)) { //Print temp & remaining time every 1s while waiting
-      next_temp_ms = now + 1000UL;
-      thermalManager.print_heaterstates();
-      #if TEMP_RESIDENCY_TIME > 0
-        SERIAL_PROTOCOLPGM(" W:");
-        if (residency_start_ms)
-          SERIAL_PROTOCOL(long((((TEMP_RESIDENCY_TIME) * 1000UL) - (now - residency_start_ms)) / 1000UL));
-        else
-          SERIAL_PROTOCOLCHAR('?');
-      #endif
-      SERIAL_EOL();
-    }
-
-    idle();
-    reset_stepper_timeout(); // Keep steppers powered
-
-    const float temp = thermalManager.degHotend(target_extruder);
-
-    #if ENABLED(PRINTER_EVENT_LEDS)
-      // Gradually change LED strip from violet to red as nozzle heats up
-      if (!wants_to_cool) {
-        const uint8_t blue = map(constrain(temp, start_temp, target_temp), start_temp, target_temp, 255, 0);
-        if (blue != old_blue) {
-          old_blue = blue;
-          leds.set_color(
-            MakeLEDColor(255, 0, blue, 0, pixels.getBrightness())
-            #if ENABLED(NEOPIXEL_IS_SEQUENTIAL)
-              , true
-            #endif
-          );
-        }
-      }
-    #endif
-
-    #if TEMP_RESIDENCY_TIME > 0
-
-      const float temp_diff = ABS(target_temp - temp);
-
-      if (!residency_start_ms) {
-        // Start the TEMP_RESIDENCY_TIME timer when we reach target temp for the first time.
-        if (temp_diff < TEMP_WINDOW) residency_start_ms = now;
-      }
-      else if (temp_diff > TEMP_HYSTERESIS) {
-        // Restart the timer whenever the temperature falls outside the hysteresis.
-        residency_start_ms = now;
-      }
-
-    #endif
-
-    // Prevent a wait-forever situation if R is misused i.e. M109 R0
-    if (wants_to_cool) {
-      // break after MIN_COOLING_SLOPE_TIME seconds
-      // if the temperature did not drop at least MIN_COOLING_SLOPE_DEG
-      if (!next_cool_check_ms || ELAPSED(now, next_cool_check_ms)) {
-        if (old_temp - temp < float(MIN_COOLING_SLOPE_DEG)) break;
-        next_cool_check_ms = now + 1000UL * MIN_COOLING_SLOPE_TIME;
-        old_temp = temp;
-      }
-    }
-
-  } while (wait_for_heatup && TEMP_CONDITIONS);
-
-  if (wait_for_heatup) {
-    lcd_reset_status();
-    #if ENABLED(PRINTER_EVENT_LEDS)
-      leds.set_white();
-    #endif
-  }
-
-  #if DISABLED(BUSY_WHILE_HEATING)
-    KEEPALIVE_STATE(IN_HANDLER);
-  #endif
 }

Marlin/src/gcode/temperature/M140_M190.cpp

@@ -47,13 +47,6 @@ void GcodeSuite::M140() {
   if (parser.seenval('S')) thermalManager.setTargetBed(parser.value_celsius());
 }
 
-#ifndef MIN_COOLING_SLOPE_DEG_BED
-  #define MIN_COOLING_SLOPE_DEG_BED 1.50
-#endif
-#ifndef MIN_COOLING_SLOPE_TIME_BED
-  #define MIN_COOLING_SLOPE_TIME_BED 60
-#endif
-
 /**
  * M190: Sxxx Wait for bed current temp to reach target temp. Waits only when heating
  *       Rxxx Wait for bed current temp to reach target temp. Waits when heating and cooling
@@ -73,108 +66,7 @@ void GcodeSuite::M190() {
 
   lcd_setstatusPGM(thermalManager.isHeatingBed() ? PSTR(MSG_BED_HEATING) : PSTR(MSG_BED_COOLING));
 
-  #if TEMP_BED_RESIDENCY_TIME > 0
+  thermalManager.wait_for_bed(no_wait_for_cooling);
-    millis_t residency_start_ms = 0;
-    // Loop until the temperature has stabilized
-    #define TEMP_BED_CONDITIONS (!residency_start_ms || PENDING(now, residency_start_ms + (TEMP_BED_RESIDENCY_TIME) * 1000UL))
-  #else
-    // Loop until the temperature is very close target
-    #define TEMP_BED_CONDITIONS (wants_to_cool ? thermalManager.isCoolingBed() : thermalManager.isHeatingBed())
-  #endif
-
-  float target_temp = -1, old_temp = 9999;
-  bool wants_to_cool = false;
-  wait_for_heatup = true;
-  millis_t now, next_temp_ms = 0, next_cool_check_ms = 0;
-
-  #if DISABLED(BUSY_WHILE_HEATING)
-    KEEPALIVE_STATE(NOT_BUSY);
-  #endif
-
-  target_extruder = active_extruder; // for print_heaterstates
-
-  #if ENABLED(PRINTER_EVENT_LEDS)
-    const float start_temp = thermalManager.degBed();
-    uint8_t old_red = 127;
-  #endif
-
-  do {
-    // Target temperature might be changed during the loop
-    if (target_temp != thermalManager.degTargetBed()) {
-      wants_to_cool = thermalManager.isCoolingBed();
-      target_temp = thermalManager.degTargetBed();
-
-      // Exit if S<lower>, continue if S<higher>, R<lower>, or R<higher>
-      if (no_wait_for_cooling && wants_to_cool) break;
-    }
-
-    now = millis();
-    if (ELAPSED(now, next_temp_ms)) { //Print Temp Reading every 1 second while heating up.
-      next_temp_ms = now + 1000UL;
-      thermalManager.print_heaterstates();
-      #if TEMP_BED_RESIDENCY_TIME > 0
-        SERIAL_PROTOCOLPGM(" W:");
-        if (residency_start_ms)
-          SERIAL_PROTOCOL(long((((TEMP_BED_RESIDENCY_TIME) * 1000UL) - (now - residency_start_ms)) / 1000UL));
-        else
-          SERIAL_PROTOCOLCHAR('?');
-      #endif
-      SERIAL_EOL();
-    }
-
-    idle();
-    reset_stepper_timeout(); // Keep steppers powered
-
-    const float temp = thermalManager.degBed();
-
-    #if ENABLED(PRINTER_EVENT_LEDS)
-      // Gradually change LED strip from blue to violet as bed heats up
-      if (!wants_to_cool) {
-        const uint8_t red = map(constrain(temp, start_temp, target_temp), start_temp, target_temp, 0, 255);
-        if (red != old_red) {
-          old_red = red;
-          leds.set_color(
-            MakeLEDColor(red, 0, 255, 0, pixels.getBrightness())
-            #if ENABLED(NEOPIXEL_IS_SEQUENTIAL)
-              , true
-            #endif
-          );
-        }
-      }
-    #endif
-
-    #if TEMP_BED_RESIDENCY_TIME > 0
-
-      const float temp_diff = ABS(target_temp - temp);
-
-      if (!residency_start_ms) {
-        // Start the TEMP_BED_RESIDENCY_TIME timer when we reach target temp for the first time.
-        if (temp_diff < TEMP_BED_WINDOW) residency_start_ms = now;
-      }
-      else if (temp_diff > TEMP_BED_HYSTERESIS) {
-        // Restart the timer whenever the temperature falls outside the hysteresis.
-        residency_start_ms = now;
-      }
-
-    #endif // TEMP_BED_RESIDENCY_TIME > 0
-
-    // Prevent a wait-forever situation if R is misused i.e. M190 R0
-    if (wants_to_cool) {
-      // Break after MIN_COOLING_SLOPE_TIME_BED seconds
-      // if the temperature did not drop at least MIN_COOLING_SLOPE_DEG_BED
-      if (!next_cool_check_ms || ELAPSED(now, next_cool_check_ms)) {
-        if (old_temp - temp < float(MIN_COOLING_SLOPE_DEG_BED)) break;
-        next_cool_check_ms = now + 1000UL * MIN_COOLING_SLOPE_TIME_BED;
-        old_temp = temp;
-      }
-    }
-
-  } while (wait_for_heatup && TEMP_BED_CONDITIONS);
-
-  if (wait_for_heatup) lcd_reset_status();
-  #if DISABLED(BUSY_WHILE_HEATING)
-    KEEPALIVE_STATE(IN_HANDLER);
-  #endif
 }
 
 #endif // HAS_HEATED_BED

Marlin/src/module/temperature.cpp

@@ -51,6 +51,10 @@
   #include "../feature/emergency_parser.h"
 #endif
 
+#if ENABLED(PRINTER_EVENT_LEDS)
+  #include "../feature/leds/leds.h"
+#endif
+
 #if HOTEND_USES_THERMISTOR
   #if ENABLED(TEMP_SENSOR_1_AS_REDUNDANT)
     static void* heater_ttbl_map[2] = { (void*)HEATER_0_TEMPTABLE, (void*)HEATER_1_TEMPTABLE };
@@ -2412,4 +2416,248 @@ void Temperature::isr() {
 
   #endif // AUTO_REPORT_TEMPERATURES
 
+  #if HAS_TEMP_HOTEND
+
+    #ifndef MIN_COOLING_SLOPE_DEG
+      #define MIN_COOLING_SLOPE_DEG 1.50
+    #endif
+    #ifndef MIN_COOLING_SLOPE_TIME
+      #define MIN_COOLING_SLOPE_TIME 60
+    #endif
+
+    bool Temperature::wait_for_hotend(const uint8_t target_extruder, const bool no_wait_for_cooling/*=true*/) {
+      #if TEMP_RESIDENCY_TIME > 0
+        millis_t residency_start_ms = 0;
+        // Loop until the temperature has stabilized
+        #define TEMP_CONDITIONS (!residency_start_ms || PENDING(now, residency_start_ms + (TEMP_RESIDENCY_TIME) * 1000UL))
+      #else
+        // Loop until the temperature is very close target
+        #define TEMP_CONDITIONS (wants_to_cool ? isCoolingHotend(target_extruder) : isHeatingHotend(target_extruder))
+      #endif
+
+      #if DISABLED(BUSY_WHILE_HEATING)
+        #if ENABLED(HOST_KEEPALIVE_FEATURE)
+          const MarlinBusyState old_busy_state = gcode.busy_state;
+        #endif
+        KEEPALIVE_STATE(NOT_BUSY);
+      #endif
+
+      #if ENABLED(PRINTER_EVENT_LEDS)
+        const float start_temp = degHotend(target_extruder);
+        uint8_t old_blue = 0;
+      #endif
+
+      float target_temp = -1.0, old_temp = 9999.0;
+      bool wants_to_cool = false;
+      wait_for_heatup = true;
+      millis_t now, next_temp_ms = 0, next_cool_check_ms = 0;
+      do {
+        // Target temperature might be changed during the loop
+        if (target_temp != degTargetHotend(target_extruder)) {
+          wants_to_cool = isCoolingHotend(target_extruder);
+          target_temp = degTargetHotend(target_extruder);
+
+          // Exit if S<lower>, continue if S<higher>, R<lower>, or R<higher>
+          if (no_wait_for_cooling && wants_to_cool) break;
+        }
+
+        now = millis();
+        if (ELAPSED(now, next_temp_ms)) { //Print temp & remaining time every 1s while waiting
+          next_temp_ms = now + 1000UL;
+          print_heaterstates();
+          #if TEMP_RESIDENCY_TIME > 0
+            SERIAL_PROTOCOLPGM(" W:");
+            if (residency_start_ms)
+              SERIAL_PROTOCOL(long((((TEMP_RESIDENCY_TIME) * 1000UL) - (now - residency_start_ms)) / 1000UL));
+            else
+              SERIAL_PROTOCOLCHAR('?');
+          #endif
+          SERIAL_EOL();
+        }
+
+        idle();
+        gcode.reset_stepper_timeout(); // Keep steppers powered
+
+        const float temp = degHotend(target_extruder);
+
+        #if ENABLED(PRINTER_EVENT_LEDS)
+          // Gradually change LED strip from violet to red as nozzle heats up
+          if (!wants_to_cool) {
+            const uint8_t blue = map(constrain(temp, start_temp, target_temp), start_temp, target_temp, 255, 0);
+            if (blue != old_blue) {
+              old_blue = blue;
+              leds.set_color(
+                MakeLEDColor(255, 0, blue, 0, pixels.getBrightness())
+                #if ENABLED(NEOPIXEL_IS_SEQUENTIAL)
+                  , true
+                #endif
+              );
+            }
+          }
+        #endif
+
+        #if TEMP_RESIDENCY_TIME > 0
+
+          const float temp_diff = ABS(target_temp - temp);
+
+          if (!residency_start_ms) {
+            // Start the TEMP_RESIDENCY_TIME timer when we reach target temp for the first time.
+            if (temp_diff < TEMP_WINDOW) residency_start_ms = now;
+          }
+          else if (temp_diff > TEMP_HYSTERESIS) {
+            // Restart the timer whenever the temperature falls outside the hysteresis.
+            residency_start_ms = now;
+          }
+
+        #endif
+
+        // Prevent a wait-forever situation if R is misused i.e. M109 R0
+        if (wants_to_cool) {
+          // break after MIN_COOLING_SLOPE_TIME seconds
+          // if the temperature did not drop at least MIN_COOLING_SLOPE_DEG
+          if (!next_cool_check_ms || ELAPSED(now, next_cool_check_ms)) {
+            if (old_temp - temp < float(MIN_COOLING_SLOPE_DEG)) break;
+            next_cool_check_ms = now + 1000UL * MIN_COOLING_SLOPE_TIME;
+            old_temp = temp;
+          }
+        }
+
+      } while (wait_for_heatup && TEMP_CONDITIONS);
+
+      if (wait_for_heatup) {
+        lcd_reset_status();
+        #if ENABLED(PRINTER_EVENT_LEDS)
+          leds.set_white();
+        #endif
+      }
+
+      #if DISABLED(BUSY_WHILE_HEATING) && ENABLED(HOST_KEEPALIVE_FEATURE)
+        gcode.busy_state = old_busy_state;
+      #endif
+
+      return wait_for_heatup;
+    }
+
+  #endif // HAS_TEMP_HOTEND
+
+  #if HAS_HEATED_BED
+
+    #ifndef MIN_COOLING_SLOPE_DEG_BED
+      #define MIN_COOLING_SLOPE_DEG_BED 1.50
+    #endif
+    #ifndef MIN_COOLING_SLOPE_TIME_BED
+      #define MIN_COOLING_SLOPE_TIME_BED 60
+    #endif
+
+    void Temperature::wait_for_bed(const bool no_wait_for_cooling) {
+      #if TEMP_BED_RESIDENCY_TIME > 0
+        millis_t residency_start_ms = 0;
+        // Loop until the temperature has stabilized
+        #define TEMP_BED_CONDITIONS (!residency_start_ms || PENDING(now, residency_start_ms + (TEMP_BED_RESIDENCY_TIME) * 1000UL))
+      #else
+        // Loop until the temperature is very close target
+        #define TEMP_BED_CONDITIONS (wants_to_cool ? isCoolingBed() : isHeatingBed())
+      #endif
+
+      float target_temp = -1, old_temp = 9999;
+      bool wants_to_cool = false;
+      wait_for_heatup = true;
+      millis_t now, next_temp_ms = 0, next_cool_check_ms = 0;
+
+      #if DISABLED(BUSY_WHILE_HEATING)
+        #if ENABLED(HOST_KEEPALIVE_FEATURE)
+          const MarlinBusyState old_busy_state = gcode.busy_state;
+        #endif
+        KEEPALIVE_STATE(NOT_BUSY);
+      #endif
+
+      gcode.target_extruder = active_extruder; // for print_heaterstates
+
+      #if ENABLED(PRINTER_EVENT_LEDS)
+        const float start_temp = degBed();
+        uint8_t old_red = 127;
+      #endif
+
+      do {
+        // Target temperature might be changed during the loop
+        if (target_temp != degTargetBed()) {
+          wants_to_cool = isCoolingBed();
+          target_temp = degTargetBed();
+
+          // Exit if S<lower>, continue if S<higher>, R<lower>, or R<higher>
+          if (no_wait_for_cooling && wants_to_cool) break;
+        }
+
+        now = millis();
+        if (ELAPSED(now, next_temp_ms)) { //Print Temp Reading every 1 second while heating up.
+          next_temp_ms = now + 1000UL;
+          print_heaterstates();
+          #if TEMP_BED_RESIDENCY_TIME > 0
+            SERIAL_PROTOCOLPGM(" W:");
+            if (residency_start_ms)
+              SERIAL_PROTOCOL(long((((TEMP_BED_RESIDENCY_TIME) * 1000UL) - (now - residency_start_ms)) / 1000UL));
+            else
+              SERIAL_PROTOCOLCHAR('?');
+          #endif
+          SERIAL_EOL();
+        }
+
+        idle();
+        gcode.reset_stepper_timeout(); // Keep steppers powered
+
+        const float temp = degBed();
+
+        #if ENABLED(PRINTER_EVENT_LEDS)
+          // Gradually change LED strip from blue to violet as bed heats up
+          if (!wants_to_cool) {
+            const uint8_t red = map(constrain(temp, start_temp, target_temp), start_temp, target_temp, 0, 255);
+            if (red != old_red) {
+              old_red = red;
+              leds.set_color(
+                MakeLEDColor(red, 0, 255, 0, pixels.getBrightness())
+                #if ENABLED(NEOPIXEL_IS_SEQUENTIAL)
+                  , true
+                #endif
+              );
+            }
+          }
+        #endif
+
+        #if TEMP_BED_RESIDENCY_TIME > 0
+
+          const float temp_diff = ABS(target_temp - temp);
+
+          if (!residency_start_ms) {
+            // Start the TEMP_BED_RESIDENCY_TIME timer when we reach target temp for the first time.
+            if (temp_diff < TEMP_BED_WINDOW) residency_start_ms = now;
+          }
+          else if (temp_diff > TEMP_BED_HYSTERESIS) {
+            // Restart the timer whenever the temperature falls outside the hysteresis.
+            residency_start_ms = now;
+          }
+
+        #endif // TEMP_BED_RESIDENCY_TIME > 0
+
+        // Prevent a wait-forever situation if R is misused i.e. M190 R0
+        if (wants_to_cool) {
+          // Break after MIN_COOLING_SLOPE_TIME_BED seconds
+          // if the temperature did not drop at least MIN_COOLING_SLOPE_DEG_BED
+          if (!next_cool_check_ms || ELAPSED(now, next_cool_check_ms)) {
+            if (old_temp - temp < float(MIN_COOLING_SLOPE_DEG_BED)) break;
+            next_cool_check_ms = now + 1000UL * MIN_COOLING_SLOPE_TIME_BED;
+            old_temp = temp;
+          }
+        }
+
+      } while (wait_for_heatup && TEMP_BED_CONDITIONS);
+
+      if (wait_for_heatup) lcd_reset_status();
+
+      #if DISABLED(BUSY_WHILE_HEATING) && ENABLED(HOST_KEEPALIVE_FEATURE)
+        gcode.busy_state = old_busy_state;
+      #endif
+    }
+
+  #endif // HAS_HEATED_BED
+
 #endif // HAS_TEMP_SENSOR

Marlin/src/module/temperature.h

@@ -433,7 +433,12 @@ class Temperature {
       return target_temperature[HOTEND_INDEX] < current_temperature[HOTEND_INDEX];
     }
 
+    #if HAS_TEMP_HOTEND
+      static bool wait_for_hotend(const uint8_t target_extruder, const bool no_wait_for_cooling=true);
+    #endif
+
     #if HAS_HEATED_BED
+
       #if ENABLED(SHOW_TEMP_ADC_VALUES)
         FORCE_INLINE static int16_t rawBedTemp()  { return current_temperature_bed_raw; }
       #endif
@@ -461,7 +466,10 @@ class Temperature {
       #if WATCH_THE_BED
         static void start_watching_bed();
       #endif
-    #endif
+
+      static void wait_for_bed(const bool no_wait_for_cooling);
+
+    #endif // HAS_HEATED_BED
 
     #if HAS_TEMP_CHAMBER
       #if ENABLED(SHOW_TEMP_ADC_VALUES)
@@ -470,7 +478,7 @@ class Temperature {
       FORCE_INLINE static float degChamber() { return current_temperature_chamber; }
     #endif
 
-    FORCE_INLINE static bool wait_for_heating(const uint8_t e) {
+    FORCE_INLINE static bool still_heating(const uint8_t e) {
       return degTargetHotend(e) > TEMP_HYSTERESIS && ABS(degHotend(e) - degTargetHotend(e)) > TEMP_HYSTERESIS;
     }