//#include <SoftwareSerial.h>
#include <Adafruit_NeoPixel.h>
#define PIN 6
Adafruit_NeoPixel strip = Adafruit_NeoPixel(60, PIN, NEO_GRB + NEO_KHZ800);
//SoftwareSerial mySerial(A0, A1); // RX, TX 

int val;
void setup() {
   strip.begin();
   strip.show(); 
  Serial.begin(9600);
}

void loop() {
  if (Serial.available() > 0)
  {
    val = Serial.read();
    switch (val)
    {
      case 'A':
     // Serial.println("val");
        colorWipe(strip.Color(255, 0, 0), 50);
        break;
      case 'B':
      colorWipe(strip.Color(0, 255, 0), 50);
        break;
        case 'C':
      colorWipe(strip.Color(0, 0, 255), 50);
       break;
      default:
        break;
    }
  }
}
void colorWipe(uint32_t c, uint8_t wait) {
  for(uint16_t i=0; i<strip.numPixels(); i++) {
    strip.setPixelColor(i, c);
    strip.show();
    delay(wait);
  }
}

uint32_t Wheel(byte WheelPos) {
  WheelPos = 255 - WheelPos;
  if(WheelPos < 85) {
    return strip.Color(255 - WheelPos * 3, 0, WheelPos * 3);
  }
  if(WheelPos < 170) {
    WheelPos -= 85;
    return strip.Color(0, WheelPos * 3, 255 - WheelPos * 3);
  }
  WheelPos -= 170;
  return strip.Color(WheelPos * 3, 255 - WheelPos * 3, 0);
}