Add support for Printrbot Neopixel RGBW strip.

Connected as described at http://printrbot.com/shop/led-strip/

Based on patch by Kelly Anderson <kelly@xilka.com> at
http://www.xilka.com/printrbot/marlin/1.1.4/20170707/

.travis.yml

@@ -50,6 +50,10 @@ install:
   - git clone https://github.com/teemuatlut/TMC2130Stepper.git
   - sudo mv TMC2130Stepper /usr/local/share/arduino/libraries/TMC2130Stepper
   #
+  # Install: Adafruit Neopixel library
+  - git clone https://github.com/adafruit/Adafruit_NeoPixel.git
+  - sudo mv Adafruit_NeoPixel /usr/local/share/arduino/libraries/Adafruit_NeoPixel
+  #
 before_script:
   #
   # Change current working directory to the build dir
@@ -80,6 +84,7 @@ script:
   - opt_set TEMP_SENSOR_1 1
   - opt_set TEMP_SENSOR_BED 1
   - opt_enable PIDTEMPBED FIX_MOUNTED_PROBE Z_SAFE_HOMING ARC_P_CIRCLES CNC_WORKSPACE_PLANES
+  - opt_enable BLINKM PCA9632 RGB_LED NEOPIXEL_RGBW_LED
   - build_marlin
   #
   # ...with AUTO_BED_LEVELING_LINEAR, Z_MIN_PROBE_REPEATABILITY_TEST, and DEBUG_LEVELING_FEATURE

Marlin/Conditionals_LCD.h

@@ -430,6 +430,6 @@
 
   #define HAS_SOFTWARE_ENDSTOPS (ENABLED(MIN_SOFTWARE_ENDSTOPS) || ENABLED(MAX_SOFTWARE_ENDSTOPS))
   #define HAS_RESUME_CONTINUE (ENABLED(NEWPANEL) || ENABLED(EMERGENCY_PARSER))
-  #define HAS_COLOR_LEDS (ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632))
+  #define HAS_COLOR_LEDS (ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED))
 
 #endif // CONDITIONALS_LCD_H

Marlin/Configuration.h

@@ -1551,6 +1551,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1562,7 +1570,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

Marlin/Makefile

@@ -270,6 +270,9 @@ ifeq ($(WIRE), 1)
 VPATH += $(ARDUINO_INSTALL_DIR)/libraries/Wire
 VPATH += $(ARDUINO_INSTALL_DIR)/libraries/Wire/utility
 endif
+ifeq ($(NEOPIXEL), 1)
+VPATH += $(ARDUINO_INSTALL_DIR)/libraries/Adafruit_NeoPixel
+endif
 
 ifeq ($(HARDWARE_VARIANT), arduino)
 HARDWARE_SUB_VARIANT ?= mega
@@ -297,6 +300,9 @@ CXXSRC = WMath.cpp WString.cpp Print.cpp Marlin_main.cpp \
 	watchdog.cpp SPI.cpp servo.cpp Tone.cpp ultralcd.cpp digipot_mcp4451.cpp \
 	dac_mcp4728.cpp vector_3.cpp least_squares_fit.cpp endstops.cpp stopwatch.cpp utility.cpp \
 	printcounter.cpp nozzle.cpp serial.cpp
+ifeq ($(NEOPIXEL), 1)
+CXXSRC += Adafruit_NeoPixel.cpp
+endif
 ifeq ($(LIQUID_TWI2), 0)
 CXXSRC += LiquidCrystal.cpp
 else

Marlin/Marlin_main.cpp

@@ -279,6 +279,10 @@
   #include "watchdog.h"
 #endif
 
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #include <Adafruit_NeoPixel.h>
+#endif
+
 #if ENABLED(BLINKM)
   #include "blinkm.h"
   #include "Wire.h"
@@ -968,13 +972,61 @@ void servo_init() {
 
 #if HAS_COLOR_LEDS
 
+  #if ENABLED(NEOPIXEL_RGBW_LED)
+
+    Adafruit_NeoPixel pixels(NEOPIXEL_PIXELS, NEOPIXEL_PIN, NEO_GRBW + NEO_KHZ800);
+
+    void set_neopixel_color(const uint32_t color) {
+      for (uint16_t i = 0; i < pixels.numPixels(); ++i)
+        pixels.setPixelColor(i, color);
+      pixels.show();
+    }
+
+    void setup_neopixel() {
+      pixels.setBrightness(255); // 0 - 255 range
+      pixels.begin();
+      pixels.show(); // initialize to all off
+
+      #if ENABLED(NEOPIXEL_STARTUP_TEST)
+        delay(2000);
+        set_neopixel_color(pixels.Color(255, 0, 0, 0));  // red
+        delay(2000);
+        set_neopixel_color(pixels.Color(0, 255, 0, 0));  // green
+        delay(2000);
+        set_neopixel_color(pixels.Color(0, 0, 255, 0));  // blue
+        delay(2000);
+      #endif
+      set_neopixel_color(pixels.Color(0, 0, 0, 255));    // white
+    }
+
+  #endif // NEOPIXEL_RGBW_LED
+
   void set_led_color(
     const uint8_t r, const uint8_t g, const uint8_t b
-      #if ENABLED(RGBW_LED)
+      #if ENABLED(RGBW_LED) || ENABLED(NEOPIXEL_RGBW_LED)
-        , const uint8_t w=0
+        , const uint8_t w = 0
+        #if ENABLED(NEOPIXEL_RGBW_LED)
+          , bool isSequence = false
+        #endif
       #endif
   ) {
 
+    #if ENABLED(NEOPIXEL_RGBW_LED)
+
+      const uint32_t color = pixels.Color(r, g, b, w);
+      static int nextLed = 0;
+
+      if (!isSequence)
+        set_neopixel_color(color);
+      else {
+        pixels.setPixelColor(nextLed, color);
+        pixels.show();
+        if (++nextLed >= pixels.numPixels()) nextLed = 0;
+        return;
+      }
+
+    #endif
+
     #if ENABLED(BLINKM)
 
       // This variant uses i2c to send the RGB components to the device.
@@ -7355,7 +7407,14 @@ inline void gcode_M109() {
       // 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) set_led_color(255, 0, (old_blue = blue));
+        if (blue != old_blue) {
+          old_blue = blue;
+          set_led_color(255, 0, blue
+            #if ENABLED(NEOPIXEL_RGBW_LED)
+              , 0, true
+            #endif
+          );
+        }
       }
     #endif
 
@@ -7390,7 +7449,7 @@ inline void gcode_M109() {
   if (wait_for_heatup) {
     LCD_MESSAGEPGM(MSG_HEATING_COMPLETE);
     #if ENABLED(PRINTER_EVENT_LEDS)
-      #if ENABLED(RGBW_LED)
+      #if ENABLED(RGBW_LED) || ENABLED(NEOPIXEL_RGBW_LED)
         set_led_color(0, 0, 0, 255);  // Turn on the WHITE LED
       #else
         set_led_color(255, 255, 255); // Set LEDs All On
@@ -7488,7 +7547,14 @@ inline void gcode_M109() {
         // 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) set_led_color((old_red = red), 0, 255);
+          if (red != old_red) {
+            old_red = red;
+            set_led_color(red, 0, 255
+              #if ENABLED(NEOPIXEL_RGBW_LED)
+                , 0, true
+              #endif
+            );
+          }
         }
       #endif
 
@@ -8146,7 +8212,7 @@ inline void gcode_M121() { endstops.enable_globally(false); }
       parser.seen('R') ? (parser.has_value() ? parser.value_byte() : 255) : 0,
       parser.seen('U') ? (parser.has_value() ? parser.value_byte() : 255) : 0,
       parser.seen('B') ? (parser.has_value() ? parser.value_byte() : 255) : 0
-      #if ENABLED(RGBW_LED)
+      #if ENABLED(RGBW_LED) || ENABLED(NEOPIXEL_RGBW_LED)
         , parser.seen('W') ? (parser.has_value() ? parser.value_byte() : 255) : 0
       #endif
     );
@@ -13072,6 +13138,11 @@ void setup() {
     OUT_WRITE(STAT_LED_BLUE_PIN, LOW); // turn it off
   #endif
 
+  #if ENABLED(NEOPIXEL_RGBW_LED)
+    SET_OUTPUT(NEOPIXEL_PIN);
+    setup_neopixel();
+  #endif
+
   #if ENABLED(RGB_LED) || ENABLED(RGBW_LED)
     SET_OUTPUT(RGB_LED_R_PIN);
     SET_OUTPUT(RGB_LED_G_PIN);

Marlin/SanityCheck.h

@@ -1056,8 +1056,12 @@ static_assert(1 >= 0
   #if !(_RGB_TEST && PIN_EXISTS(RGB_LED_W))
     #error "RGBW_LED requires RGB_LED_R_PIN, RGB_LED_G_PIN, RGB_LED_B_PIN, and RGB_LED_W_PIN."
   #endif
-#elif ENABLED(PRINTER_EVENT_LEDS) && DISABLED(BLINKM) && DISABLED(PCA9632)
+#elif ENABLED(NEOPIXEL_RGBW_LED)
-  #error "PRINTER_EVENT_LEDS requires BLINKM, PCA9632, RGB_LED, or RGBW_LED."
+  #if !(PIN_EXISTS(NEOPIXEL) && NEOPIXEL_PIXELS > 0)
+    #error "NEOPIXEL_RGBW_LED requires NEOPIXEL_PIN and NEOPIXEL_PIXELS."
+  #endif
+#elif ENABLED(PRINTER_EVENT_LEDS) && DISABLED(BLINKM) && DISABLED(PCA9632) && DISABLED(NEOPIXEL_RGBW_LED)
+  #error "PRINTER_EVENT_LEDS requires BLINKM, PCA9632, RGB_LED, RGBW_LED or NEOPIXEL_RGBW_LED."
 #endif
 
 /**

Marlin/example_configurations/AlephObjects/TAZ4/Configuration.h

@@ -1566,6 +1566,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1577,7 +1585,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

Marlin/example_configurations/AliExpress/CL-260/Configuration.h

@@ -1548,6 +1548,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1559,7 +1567,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

Marlin/example_configurations/Anet/A6/Configuration.h

@@ -1709,6 +1709,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1720,7 +1728,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

Marlin/example_configurations/Anet/A8/Configuration.h

@@ -1558,6 +1558,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1569,7 +1577,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

Marlin/example_configurations/BQ/Hephestos/Configuration.h

@@ -1537,6 +1537,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1548,7 +1556,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

Marlin/example_configurations/BQ/Hephestos_2/Configuration.h

@@ -1548,6 +1548,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1559,7 +1567,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

Marlin/example_configurations/BQ/WITBOX/Configuration.h

@@ -1537,6 +1537,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1548,7 +1556,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

Marlin/example_configurations/Cartesio/Configuration.h

@@ -1545,6 +1545,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1556,7 +1564,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

Marlin/example_configurations/Creality/CR-10/Configuration.h

@@ -1562,6 +1562,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1573,7 +1581,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

Marlin/example_configurations/Felix/Configuration.h

@@ -1529,6 +1529,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1540,7 +1548,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

Marlin/example_configurations/Felix/DUAL/Configuration.h

@@ -1529,6 +1529,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1540,7 +1548,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

Marlin/example_configurations/Folger Tech/i3-2020/Configuration.h

@@ -1551,6 +1551,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1562,7 +1570,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

Marlin/example_configurations/Infitary/i3-M508/Configuration.h

@@ -1555,6 +1555,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1566,7 +1574,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

Marlin/example_configurations/Malyan/M150/Configuration.h

@@ -1574,6 +1574,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1585,7 +1593,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

Marlin/example_configurations/RepRapWorld/Megatronics/Configuration.h

@@ -1547,6 +1547,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1558,7 +1566,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

Marlin/example_configurations/RigidBot/Configuration.h

@@ -1547,6 +1547,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1558,7 +1566,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

Marlin/example_configurations/SCARA/Configuration.h

@@ -1559,6 +1559,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1570,7 +1578,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

Marlin/example_configurations/TinyBoy2/Configuration.h

@@ -1608,6 +1608,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1619,7 +1627,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

Marlin/example_configurations/Velleman/K8200/Configuration.h

@@ -1586,6 +1586,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1597,7 +1605,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

Marlin/example_configurations/Velleman/K8400/Configuration.h

@@ -1547,6 +1547,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1558,7 +1566,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

Marlin/example_configurations/Velleman/K8400/Dual-head/Configuration.h

@@ -1547,6 +1547,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1558,7 +1566,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

Marlin/example_configurations/adafruit/ST7565/Configuration.h

@@ -1547,6 +1547,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1558,7 +1566,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

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

@@ -1674,6 +1674,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1685,7 +1693,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

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

@@ -1668,6 +1668,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1679,7 +1687,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

Marlin/example_configurations/delta/generic/Configuration.h

@@ -1658,6 +1658,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1669,7 +1677,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

Marlin/example_configurations/delta/kossel_mini/Configuration.h

@@ -1661,6 +1661,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1672,7 +1680,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

Marlin/example_configurations/delta/kossel_pro/Configuration.h

@@ -1666,6 +1666,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1677,7 +1685,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

Marlin/example_configurations/delta/kossel_xl/Configuration.h

@@ -1724,6 +1724,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1735,7 +1743,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

Marlin/example_configurations/gCreate/gMax1.5+/Configuration.h

@@ -1563,6 +1563,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1574,7 +1582,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

Marlin/example_configurations/makibox/Configuration.h

@@ -1550,6 +1550,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1561,7 +1569,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

Marlin/example_configurations/tvrrug/Round2/Configuration.h

@@ -1542,6 +1542,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1553,7 +1561,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif
 

Marlin/example_configurations/wt150/Configuration.h

@@ -1553,6 +1553,14 @@
   #define RGB_LED_W_PIN -1
 #endif
 
+// Support for Adafruit Neopixel LED driver
+//#define NEOPIXEL_RGBW_LED
+#if ENABLED(NEOPIXEL_RGBW_LED)
+  #define NEOPIXEL_PIN    4       // D4 (EXP2-5 on Printrboard)
+  #define NEOPIXEL_PIXELS 3
+  //#define NEOPIXEL_STARTUP_TEST // Cycle through colors at startup
+#endif
+
 /**
  * Printer Event LEDs
  *
@@ -1564,7 +1572,7 @@
  *  - Change to green once print has finished
  *  - Turn off after the print has finished and the user has pushed a button
  */
-#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632)
+#if ENABLED(BLINKM) || ENABLED(RGB_LED) || ENABLED(RGBW_LED) || ENABLED(PCA9632) || ENABLED(NEOPIXEL_RGBW_LED)
   #define PRINTER_EVENT_LEDS
 #endif