LedRstSwitch.c

#include <FastLED.h>
#include <EEPROM.h>
// How many leds in your strip?
#define NUM_LEDS 60

// For led chips like Neopixels, which have a data line, ground, and power, you just
// need to define DATA_PIN.  For led chipsets that are SPI based (four wires - data, clock,
// ground, and power), like the LPD8806 define both DATA_PIN and CLOCK_PIN
#define DATA_PIN 3
#define CLOCK_PIN 13
#define HIGHEST_OPTION 2
// Define the array of leds
CRGB leds[NUM_LEDS];
int option = EEPROM.read(1);

void setup() { 
    Serial.begin(9600);
    FastLED.addLeds<NEOPIXEL, DATA_PIN>(leds, NUM_LEDS);
    if (option >= HIGHEST_OPTION) {
        EEPROM.write(1, 0);
        option = 0;
    } else {
        EEPROM.write(1, option + 1);
        option++;
    }
    option = option * 3;
    FastLED.showColor(CRGB(EEPROM.read(option + 2),EEPROM.read(option + 3),EEPROM.read(option + 4)));
}

void loop() { 
    if (Serial.available() > 0) {
        int r = Serial.parseInt();
        int g = Serial.parseInt();
        int b = Serial.parseInt();
        EEPROM.write(option + 2, r);
        EEPROM.write(option + 3, g);
        EEPROM.write(option + 4, b);
        FastLED.showColor(CRGB(r,g,b));
    }
}