SPINDLE/LASER pins changes

Marlin/pins_GEN7_CUSTOM.h

@@ -27,8 +27,35 @@
  * Please review the pins and adjust them for your needs.
  */
 
+/**
+ * Rev B    26 DEC 2016
+ *
+ * 1) added pointer to a current Arduino IDE extension
+ * 2) added support for M3, M4 & M5 spindle control commands
+ * 3) added case light pin definition
+ *
+ */
+
+/**
+ * A useable Arduino IDE extension (board manager) can be found at
+ * https://github.com/Lauszus/Sanguino
+ *
+ * This extension has been tested on Arduino 1.6.12 & 1.8.0
+ *
+ * Here's the JSON path:
+ * https://raw.githubusercontent.com/Lauszus/Sanguino/master/package_lauszus_sanguino_index.json
+ *
+ * When installing select 1.0.2
+ *
+ * Installation instructions can be found at https://learn.sparkfun.com/pages/CustomBoardsArduino
+ * Just use the above JSON URL instead of Sparkfun's JSON.
+ *
+ * Once installed select the Sanguino board and then select the CPU.
+ *
+ */
+
 #if !defined(__AVR_ATmega644P__) && !defined(__AVR_ATmega644__) && !defined(__AVR_ATmega1284P__)
-  #error "Oops!  Make sure you have 'Gen7' selected from the 'Tools -> Boards' menu."
+  #error "Oops!  Make sure you have 'Sanguino' selected from the 'Tools -> Boards' menu."
 #endif
 
 #define BOARD_NAME      "Gen7 Custom"
@@ -76,6 +103,7 @@
 //
 #define SDSS            31  // SCL pin of I2C header || CS Pin for SD Card support
 #define PS_ON_PIN       19
+#define CASE_LIGHT_PIN  15    // MUST BE HARDWARE PWM
 
 // A pin for debugging
 #define DEBUG_PIN       -1
@@ -101,3 +129,10 @@
 // RS485 pins
 //#define TX_ENABLE_PIN   12
 //#define RX_ENABLE_PIN   13
+
+//
+// M3/M4/M5 - Spindle/Laser Control
+//
+#define SPINDLE_LASER_ENABLE_PIN  5  // Pin should have a pullup/pulldown!
+#define SPINDLE_LASER_PWM_PIN    16  // MUST BE HARDWARE PWM
+#define SPINDLE_DIR_PIN           6