Added PWM control for RGB Led and an example to test it

Author: MiK

hardware/AMEL/samd/libraries/SME_basic/examples/fadeRGB/fadeRGB.ino

@@ -0,0 +1,29 @@
+/*
+ Shows The PWM functionalities on the RGB Led
+
+ created 18 Jun 2015
+
+ by Mik (smkk@amel-tech.com)
+ */
+
+#include <Arduino.h>
+
+long randNumberR, randNumberG, randNumberB;
+
+void setup(){
+    randomSeed(analogRead(0));
+}
+
+void loop(){
+    randNumberR = random(128);
+    randNumberG = random(128);
+    randNumberB = random(128);
+
+
+
+  ledGreenLight(randNumberG);
+  ledBlueLight(randNumberB);
+  ledRedLight(randNumberR);
+
+    delay(500);
+}

hardware/AMEL/samd/variants/AMEL_SmartEverything/variant.cpp

@@ -279,7 +279,7 @@ void ledGreenLight(uint32_t value) {
     } else if (value == LOW) {
         digitalWrite(PIN_LED_GREEN, HIGH);
     } else {
-        digitalWrite(PIN_LED_GREEN, 255-value);   // in case of PWM
+        analogWrite(PIN_LED_GREEN, 255-value);   // in case of PWM
     }
 }
 
@@ -289,7 +289,7 @@ void ledRedLight(uint32_t value)   {
     } else if (value == LOW) {
         digitalWrite(PIN_LED_RED, HIGH);
     } else {
-        digitalWrite(PIN_LED_RED, 255-value);   // in case of PWM
+        analogWrite(PIN_LED_RED, 255-value);   // in case of PWM
     }
 }
 
@@ -299,7 +299,7 @@ void ledBlueLight(uint32_t value) {
     } else if (value == LOW) {
         digitalWrite(PIN_LED_BLUE, HIGH);
     } else {
-        digitalWrite(PIN_LED_BLUE, 255-value);   // in case of PWM
+        analogWrite(PIN_LED_BLUE, 255-value);   // in case of PWM
     }
 }