Added temperature status less.

Hopefully fixed viky button handling without braking other boards

Marlin/Configuration.h

@@ -540,6 +540,11 @@ const bool Z_MAX_ENDSTOP_INVERTING = true; // set to true to invert the logic of
 // Increase the FAN pwm frequency. Removes the PWM noise but increases heating in the FET/Arduino
 //#define FAST_PWM_FAN
 
+// Temperature status leds that display the hotend and bet temperature.
+// If alle hotends and bed temperature and temperature setpoint are < 54C then the BLUE led is on.
+// Otherwise the RED led is on. There is 1C hysteresis.
+//#define TEMP_STAT_LEDS
+
 // Use software PWM to drive the fan, as for the heaters. This uses a very low frequency
 // which is not ass annoying as with the hardware PWM. On the other hand, if this frequency
 // is too low, you should also increment SOFT_PWM_SCALE.

Marlin/Marlin_main.cpp

@@ -2938,6 +2938,39 @@ void controllerFan()
 }
 #endif
 
+#ifdef TEMP_STAT_LEDS
+static bool blue_led = false;
+static bool red_led = false;
+static uint32_t stat_update = 0;
+
+void handle_status_leds(void) {
+  float max_temp = 0.0;
+  if(millis() > stat_update) {
+    stat_update += 500; // Update every 0.5s
+    for (int8_t cur_extruder = 0; cur_extruder < EXTRUDERS; ++cur_extruder) {
+       max_temp = max(max_temp, degHotend(cur_extruder));
+       max_temp = max(max_temp, degTargetHotend(cur_extruder));
+    }
+    #if defined(TEMP_BED_PIN) && TEMP_BED_PIN > -1
+      max_temp = max(max_temp, degTargetBed());
+      max_temp = max(max_temp, degBed());
+    #endif
+    if((max_temp > 55.0) && (red_led == false)) {
+      digitalWrite(STAT_LED_RED, 1);
+      digitalWrite(STAT_LED_BLUE, 0);
+      red_led = true;
+      blue_led = false;
+    }
+    if((max_temp < 54.0) && (blue_led == false)) {
+      digitalWrite(STAT_LED_RED, 0);
+      digitalWrite(STAT_LED_BLUE, 1);
+      red_led = false;
+      blue_led = true;
+    }
+  }
+}
+#endif
+
 void manage_inactivity()
 {
   if( (millis() - previous_millis_cmd) >  max_inactive_time )
@@ -2992,6 +3025,9 @@ void manage_inactivity()
       prepare_move(); 
     }
   #endif
+  #ifdef TEMP_STAT_LEDS
+      handle_status_leds();
+  #endif
   check_axes_activity();
 }
 

Marlin/pins.h

@@ -544,6 +544,13 @@
     #endif
   #endif
 
+  #ifdef TEMP_STAT_LEDS
+    #if MOTHERBOARD == 67
+      #define STAT_LED_RED       6
+      #define STAT_LED_BLUE     11
+    #endif
+  #endif
+  
   #ifdef ULTRA_LCD
 
     #ifdef NEWPANEL

Marlin/ultralcd_implementation_hitachi_HD44780.h

@@ -737,12 +737,23 @@ static void lcd_implementation_update_indicators()
 #endif
 
 #ifdef LCD_HAS_SLOW_BUTTONS
+extern uint32_t blocking_enc;
+
 static uint8_t lcd_implementation_read_slow_buttons()
 {
   #ifdef LCD_I2C_TYPE_MCP23017
+  uint8_t slow_buttons;
     // Reading these buttons this is likely to be too slow to call inside interrupt context
     // so they are called during normal lcd_update
-    return lcd.readButtons() << B_I2C_BTN_OFFSET; 
+    slow_buttons = lcd.readButtons() << B_I2C_BTN_OFFSET; 
+    #if defined(LCD_I2C_VIKI)
+    if(slow_buttons & (B_MI|B_RI)) { //LCD clicked
+       if(blocking_enc > millis()) {
+         slow_buttons &= ~(B_MI|B_RI); // Disable LCD clicked buttons if screen is updated
+       }
+    }
+    #endif
+    return slow_buttons; 
   #endif
 }
 #endif