#include <FastLED.h>

#define NUM_LEDS 30     
#define DATA_PIN 2
#define setBrightnes 255
CRGB LEDs[NUM_LEDS];

CRGB colorCRGB = CRGB::Red;        
CHSV colorCHSV = CHSV(255, 255, 255);
volatile int colorMODE = 0; 


void setup() {
	
  FastLED.delay(3000);

  // Check if you're LED strip is a RGB or GRB version (third parameter)
  FastLED.addLeds<WS2812, DATA_PIN, GRB>(LEDs, NUM_LEDS);
  
  
}


void loop() {
  displaySegments(0, 7);    
  displaySegments(7, 6);
  displaySegments(16, 8);    
  displaySegments(23, 0); 
 FastLED.show();
}





void displaySegments(int startindex, int number) {

  byte numbers[] = {
    0b00111111, // 0    
    0b00000110, // 1
    0b01011011, // 2
    0b01001111, // 3
    0b01100110, // 4
    0b01101101, // 5
    0b01111101, // 6
    0b00000111, // 7
    0b01111111, // 8
    0b01101111, // 9   
    0b01100011, // º              10
    0b00111001, // C(elcius)      11
    0b01011100, // º lower        12
    0b00000000, // Empty          13
    0b01110001, // F(ahrenheit)   14
  };

  for (int i = 0; i < 7; i++) {
    LEDs[i + startindex] = ((numbers[number] & 1 << i) == 1 << i) ? (colorMODE == 0 ? colorCRGB : colorCHSV) : CRGB::Black; 
  } 
}