#include <BLEAdvertisedDevice.h>
#include <BLEDevice.h>
#include <BLEScan.h>
#include <FastLED.h>

#define LED_PIN     32
#define NUM_LEDS    2
const int CUTOFF = -52;

CRGB leds[NUM_LEDS];

BLEScan *scan;

int red, green, blue;

#define BEACON_UUID           "54fe3d7c-bd21-11ea-b3de-0242ac130004"

void setup() {
  BLEDevice::init("");
  FastLED.addLeds<WS2812, LED_PIN, GRB>(leds, NUM_LEDS);
  Serial.begin(115200);
  scan = BLEDevice::getScan(); // get scan object
  scan->setActiveScan(true); // set as passive scan
}

void loop() {
  BLEScanResults results = scan->start(1);
  int best = CUTOFF;
  int count = results.getCount();
  for (int i = 0; i < count; i++) {
    BLEAdvertisedDevice d = results.getDevice(i);
    int rssi = d.getRSSI();
    Serial.println(rssi);
    if (rssi > best) {
      best = rssi;
    }
  }  
  if(best > CUTOFF){
    red = 139;
    green = 0;
    blue= 0;
    leds[0] = CRGB(red, green, blue);
    leds[1] = CRGB(red, green, blue);
    FastLED.show();
  }
  else{
    red = 0;
    green = 0;
    blue= 0;
    leds[0] = CRGB(red, green, blue);
    leds[1] = CRGB(red, green, blue);
    FastLED.show();
  }
//
}
//}