Neaten up pins_MEGATRONICS.h (PR#2493)

Marlin/pins_MEGATRONICS.h

@@ -43,15 +43,14 @@
 #define PS_ON_PIN          12
 #define KILL_PIN           -1
 
-#define HEATER_0_PIN       9    // EXTRUDER 1
-#define HEATER_1_PIN       8    // EXTRUDER 2 (FAN On Sprinter)
+#define HEATER_0_PIN        9
+#define HEATER_1_PIN        8
 #define HEATER_2_PIN       -1
 
 #if TEMP_SENSOR_0 == -1
-#define TEMP_0_PIN         8   // ANALOG NUMBERING
+  #define TEMP_0_PIN        8   // ANALOG NUMBERING
 #else
-#define TEMP_0_PIN         13   // ANALOG NUMBERING
-
+  #define TEMP_0_PIN       13   // ANALOG NUMBERING
 #endif
 
 #define TEMP_1_PIN         15   // ANALOG NUMBERING
@@ -59,11 +58,9 @@
 #define HEATER_BED_PIN     10   // BED
 #define TEMP_BED_PIN       14   // ANALOG NUMBERING
 
-#define BEEPER 33     // Beeper on AUX-4
-
+#define BEEPER             33   // AUX-4
 
 #if defined(ULTRA_LCD) && defined(NEWPANEL)
-  //arduino pin which triggers an piezzo beeper
 
   #define LCD_PINS_RS     16
   #define LCD_PINS_ENABLE 17
@@ -72,15 +69,15 @@
   #define LCD_PINS_D6     27
   #define LCD_PINS_D7     29
 
-  //buttons are directly attached using AUX-2
+  // Buttons directly attached using AUX-2
   #define BTN_EN1         59
   #define BTN_EN2         64
-  #define BTN_ENC 43  //the click
+  #define BTN_ENC         43
 
   #define BLEN_C           2
   #define BLEN_B           1
   #define BLEN_A           0
 
-  #define SDCARDDETECT -1   // Ramps does not use this port
+  #define SDCARDDETECT    -1   // RAMPS doesn't use this
 
 #endif // ULTRA_LCD && NEWPANEL