RBG LED strip with serial color and brightness control

sketch.ino

#include "FastLED.h"
#include "EEPROM.h"

#define NUM_LEDS 37 
#define DATA_PIN 7
#define addrHue 0
#define addrOnoff 2

// Define the array of leds
CRGB leds[NUM_LEDS];
uint8_t hue = 0;
uint8_t onoff = 255;

void setup() { 
  Serial.begin(9600);
  Serial.println("starting...");
  delay(1000);
  LEDS.addLeds<WS2812,DATA_PIN,RGB>(leds,NUM_LEDS);
  LEDS.setBrightness(84);
  hue = EEPROM.read(addrHue);
  onoff = EEPROM.read(addrOnoff);
  setHue();
}

void fadeall() { 
  for(int i = 0; i < NUM_LEDS; i++) { 
    leds[i].nscale8(250); 
  } 
}

void setHue() {
  EEPROM.write(addrHue, hue);
  EEPROM.write(addrOnoff, onoff);
  for(int i = 0; i < NUM_LEDS; i++) {
    leds[i] = CHSV(hue, 255, onoff);
  }
  FastLED.show(); 
  fadeall();
  Serial.println(hue, DEC);
}

void loop() { 
  if (Serial.available() > 0) {
    byte raw = Serial.read() * 2;
    if (raw == 122) {
      hue++;
      setHue();
    }
    if (raw == 90) {
      hue--;
      setHue();
    }
    if (raw == 186) {
      onoff = 255;
      setHue();
    }
    if (raw == 182) {
      onoff = 0;
      setHue();
    }
  }
}