Wetter-anzeigen/WeatherMatrix/WeatherMatrix.ino

#include <FastLED.h>
#include <ArduinoJson.h>
#include <ESP8266HTTPClient.h>
#include <ESP8266WiFi.h>
#include <ESP8266WiFiMulti.h>
#include <WiFiClient.h>
#include <Array.h>

#define LED_PIN  0

#define COLOR_ORDER GRB
#define CHIPSET     WS2811

#define BRIGHTNESS 10

#ifndef STASSID
#define STASSID "FNT-Gast"
#define STAPSK "Laserjet09"
#endif

const char* ssid = STASSID;
const char* password = STAPSK;

// networking and json
String apiUrl;
int status = WL_IDLE_STATUS;

ESP8266WiFiMulti WiFiMulti;
WiFiClient client;
HTTPClient http;
boolean tempView = false;
int respCode = 0;

unsigned long startMillis1;
unsigned long currentMillis1;
unsigned long startMillis2;
unsigned long currentMillis2;
boolean firstIteration = true;

void connectWiFi() {

  // We start by connecting to a WiFi network
  WiFi.mode(WIFI_STA);
  WiFiMulti.addAP(ssid, password);

  Serial.println();
  Serial.println();
  Serial.print("Wait for WiFi... ");

  while (WiFiMulti.run() != WL_CONNECTED) {
    Serial.print(".");
    delay(500);
  }

  Serial.println("");
  Serial.println("WiFi connected");
  Serial.println("IP address: ");
  Serial.println(WiFi.localIP());

  delay(500);
}

String buildAPIUrl (double lat, double lon, const String& apiKey) {
  const String latStr(lat, 4);
  const String lonStr(lon, 4);
  return String("http://api.openweathermap.org/data/2.5/weather?lat=" +
                latStr + "&lon=" + lonStr + "&appid=" + apiKey + "&units=metric");
}

// Params for width and height
const uint8_t kMatrixWidth = 16;
const uint8_t kMatrixHeight = 16;

uint16_t XY( uint8_t x, uint8_t y)
{
  uint16_t i;
  if ( x & 0x01) {
    i = kMatrixHeight * (kMatrixWidth - (x + 1)) + y;
  } else {
    i = kMatrixHeight * (kMatrixWidth - x) - (y + 1);
  }
  return i;
}

#define NUM_LEDS (kMatrixWidth * kMatrixHeight)
CRGB leds_plus_safety_pixel[ NUM_LEDS + 1];
CRGB* const leds( leds_plus_safety_pixel + 1);

uint16_t XYsafe( uint8_t x, uint8_t y)
{
  if ( x >= kMatrixWidth) return -1;
  if ( y >= kMatrixHeight) return -1;
  return XY(x, y);
}

uint8_t sun_yx[16][16] = {
  {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
  {0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0},
  {0, 0, 1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0},
  {0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0},
  {1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1},
  {0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 1, 0},
  {0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0},
  {0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 1, 1, 0},
  {0, 1, 1, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0},
  {0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0},
  {0, 1, 1, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 1, 1, 0},
  {1, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0, 0, 1},
  {0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0},
  {0, 0, 1, 0, 0, 0, 1, 0, 0, 1, 0, 0, 0, 1, 0, 0},
  {0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0},
  {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
};

uint8_t cloud_yx[16][16] = {
  {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
  {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
  {0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0},
  {0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0},
  {0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0},
  {0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0},
  {0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 1, 0, 1, 0, 0},
  {0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0},
  {0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0},
  {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
  {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
  {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
  {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
};

uint8_t rain_yx[16][16] = {
  {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
  {0, 0, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0},
  {0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0},
  {0, 0, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0},
  {0, 0, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0},
  {0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0},
  {0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0},
  {0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0},
  {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
  {0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0},
  {0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 1, 0, 1, 0, 0},
  {0, 0, 0, 0, 0, 1, 0, 1, 0, 1, 0, 0, 0, 0, 0, 0},
  {0, 0, 0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 0}
};

uint8_t cloudSun_yx[16][16] = {
  {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0},
  {0, 0, 0, 0, 1, 1, 1, 1, 1, 0, 0, 0, 0, 0, 0, 0},
  {0, 0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0},
  {0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0},
  {0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0},
  {0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 1, 1, 0, 0, 0, 0},
  {0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0},
  {0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0},
  {0, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0, 0},
  {0, 0, 1, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 1, 0, 0},
  {0, 0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0},
  {0, 0, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 0, 0},
  {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
};
uint8_t celsius[5][16] = {
  {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0, 1, 1},
  {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0},
  {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 0, 0},
  {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 1, 1},
  {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
};

uint8_t empty[11][8] = {
  {0, 0, 0, 0, 0, 0, 0, 0},
  {0, 0, 0, 0, 0, 0, 0, 0},
  {0, 0, 0, 0, 0, 0, 0, 0},
  {0, 0, 0, 0, 0, 0, 0, 0},
  {0, 0, 0, 0, 0, 0, 0, 0},
  {0, 0, 0, 0, 0, 0, 0, 0},
  {0, 0, 0, 0, 0, 0, 0, 0},
  {0, 0, 0, 0, 0, 0, 0, 0},
  {0, 0, 0, 0, 0, 0, 0, 0},
  {0, 0, 0, 0, 0, 0, 0, 0},
  {0, 0, 0, 0, 0, 0, 0, 0}
};

uint8_t zero[11][8] = {
  {0, 0, 1, 1, 1, 1, 0, 0},
  {0, 1, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 1, 0},
  {0, 0, 1, 1, 1, 1, 0, 0}
};

uint8_t one[11][8]  = {
  {0, 0, 0, 1, 0, 0, 0, 0},
  {0, 0, 1, 1, 0, 0, 0, 0},
  {0, 1, 0, 1, 0, 0, 0, 0},
  {0, 0, 0, 1, 0, 0, 0, 0},
  {0, 0, 0, 1, 0, 0, 0, 0},
  {0, 0, 0, 1, 0, 0, 0, 0},
  {0, 0, 0, 1, 0, 0, 0, 0},
  {0, 0, 0, 1, 0, 0, 0, 0},
  {0, 0, 0, 1, 0, 0, 0, 0},
  {0, 0, 0, 1, 0, 0, 0, 0},
  {0, 0, 1, 1, 1, 0, 0, 0}
};

uint8_t two[11][8] = {
  {0, 0, 0, 0, 0, 0, 0, 0},
  {0, 0, 1, 1, 1, 1, 0, 0},
  {0, 1, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 1, 0},
  {0, 0, 0, 0, 0, 0, 1, 0},
  {0, 0, 0, 0, 0, 0, 1, 0},
  {0, 0, 0, 0, 0, 1, 0, 0},
  {0, 0, 0, 1, 1, 0, 0, 0},
  {0, 0, 1, 0, 0, 0, 0, 0},
  {0, 1, 0, 0, 0, 0, 0, 0},
  {0, 1, 1, 1, 1, 1, 1, 0}
};

uint8_t three[11][8] = {
  {0, 0, 1, 1, 1, 0, 0, 0},
  {0, 1, 0, 0, 0, 1, 0, 0},
  {0, 0, 0, 0, 0, 0, 1, 0},
  {0, 0, 0, 0, 0, 0, 1, 0},
  {0, 0, 0, 0, 0, 1, 0, 0},
  {0, 0, 0, 1, 1, 0, 0, 0},
  {0, 0, 0, 0, 0, 1, 0, 0},
  {0, 0, 0, 0, 0, 0, 1, 0},
  {0, 0, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 1, 0, 0},
  {0, 0, 1, 1, 1, 0, 0, 0}
};

uint8_t four[11][8] = {
  {0, 1, 0, 0, 0, 0, 0, 0},
  {0, 1, 0, 0, 0, 0, 0, 0},
  {0, 1, 0, 0, 0, 0, 0, 0},
  {0, 1, 0, 0, 1, 0, 0, 0},
  {0, 1, 0, 0, 1, 0, 0, 0},
  {0, 1, 0, 0, 1, 0, 0, 0},
  {0, 1, 1, 1, 1, 1, 1, 0},
  {0, 0, 0, 0, 1, 0, 0, 0},
  {0, 0, 0, 0, 1, 0, 0, 0},
  {0, 0, 0, 0, 1, 0, 0, 0},
  {0, 0, 0, 0, 1, 0, 0, 0}
};

uint8_t five[11][8] = {
  {0, 1, 1, 1, 1, 1, 1, 0},
  {0, 1, 0, 0, 0, 0, 0, 0},
  {0, 1, 0, 0, 0, 0, 0, 0},
  {0, 1, 0, 0, 0, 0, 0, 0},
  {0, 1, 0, 0, 0, 0, 0, 0},
  {0, 0, 1, 1, 1, 1, 0, 0},
  {0, 0, 0, 0, 0, 0, 1, 0},
  {0, 0, 0, 0, 0, 0, 1, 0},
  {0, 0, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 1, 0},
  {0, 0, 1, 1, 1, 1, 0, 0}
};

uint8_t six[11][8] = {
  {0, 0, 1, 1, 1, 1, 0, 0},
  {0, 1, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 0, 0},
  {0, 1, 0, 0, 0, 0, 0, 0},
  {0, 1, 0, 0, 0, 0, 0, 0},
  {0, 1, 1, 1, 1, 1, 0, 0},
  {0, 1, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 1, 0},
  {0, 0, 1, 1, 1, 1, 0, 0}
};

uint8_t seven[11][8] = {
  {0, 1, 1, 1, 1, 1, 1, 0},
  {0, 0, 0, 0, 0, 0, 1, 0},
  {0, 0, 0, 0, 0, 1, 0, 0},
  {0, 0, 0, 0, 0, 1, 0, 0},
  {0, 0, 0, 0, 1, 0, 0, 0},
  {0, 0, 0, 0, 1, 0, 0, 0},
  {0, 0, 0, 1, 0, 0, 0, 0},
  {0, 0, 0, 1, 0, 0, 0, 0},
  {0, 0, 1, 0, 0, 0, 0, 0},
  {0, 0, 1, 0, 0, 0, 0, 0},
  {0, 1, 0, 0, 0, 0, 0, 0}
};

uint8_t eight[11][8] = {
  {0, 0, 1, 1, 1, 1, 0, 0},
  {0, 1, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 1, 0},
  {0, 0, 1, 1, 1, 1, 0, 0},
  {0, 1, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 1, 0},
  {0, 0, 1, 1, 1, 1, 0, 0}
};

uint8_t nine[11][8] = {
  {0, 0, 1, 1, 1, 1, 0, 0},
  {0, 1, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 1, 0},
  {0, 0, 1, 1, 1, 1, 1, 0},
  {0, 0, 0, 0, 0, 0, 1, 0},
  {0, 0, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 1, 0},
  {0, 1, 0, 0, 0, 0, 1, 0},
  {0, 0, 1, 1, 1, 1, 0, 0}
};

uint8_t (*digitOne)[8];

uint8_t (*digitTwo)[8];

void drawFrame(uint8_t arr[][16], String identifier)
{
  FastLED.clear();
  FastLED.show();
  for (int i = 0; i < 16; i++) {
    for (int j = 0; j < 16; j++) {
      uint8_t elem = arr[i][j];
      if (elem == 1) {
        if (identifier == "Rain") {
          if (i >= 12) {
            leds[ XYsafe(i, j)]  = CRGB::Blue;
          } else {
            leds[ XYsafe(i, j)]  = CRGB::WhiteSmoke;
          }
        } else if (identifier == "Clouds") {
          leds[ XYsafe(i, j)]  = CRGB::WhiteSmoke;
        } else if (identifier == "Sun") {
          leds[ XYsafe(i, j)]  = CRGB::Yellow;
        } else if (identifier == "CloudSun") {
          if ((((i >= 0) && (i <= 8))
               && ((j >= 0) && (j <= 2)))
              ||
              (((i >= 0) && (i <= 4))
               && ((j >= 0) && (j <= 15)))) {
            leds[ XYsafe(i, j)]  = CRGB::Yellow;
            Serial.println("Yellow!");
          } else {
            leds[ XYsafe(i, j)]  = CRGB::WhiteSmoke;
            Serial.println("White!");
          }

        }
      }
    }
  }
  FastLED.show();
}

void drawTemp()
{
  FastLED.clear();
  FastLED.show();
  for (int i = 0; i < 5; i++) {
    for (int j = 0; j < 16; j++) {
      // Celsius Symbol
      uint8_t elemCelsius = celsius[i][j];
      if (elemCelsius == 1) {
        leds[ XYsafe(i, j)]  = CRGB::WhiteSmoke;
      }
    }
  }
}

void drawFirstDigit(int num) {
  for (int i = 0; i < 11; i++) {
    for (int j = 0; j < 8; j++) {
      uint8_t elem;
      switch (num) {
        case 1:
          elem = one[i][j];
          break;
        case 2:
          elem = two[i][j];
          break;
        case 3:
          elem = three[i][j];
          break;
        case 4:
          elem = four[i][j];
          break;
        case 5:
          elem = five[i][j];
          break;
        case 6:
          elem = six[i][j];
          break;
        case 7:
          elem = seven[i][j];
          break;
        case 8:
          elem = eight[i][j];
          break;
        case 9:
          elem = nine[i][j];
          break;
        default:
          elem = 0;
          break;
      }
      if (elem == 1) {
        leds[ XYsafe(i + 5, j)]  = CRGB::WhiteSmoke;
      }
    }
  }
}

void drawSecondDigit(int num) {
  for (int i = 0; i < 11; i++) {
    for (int j = 0; j < 8; j++) {
      uint8_t elem;
      switch (num) {
        case 1:
          elem = one[i][j];
          break;
        case 2:
          elem = two[i][j];
          break;
        case 3:
          elem = three[i][j];
          break;
        case 4:
          elem = four[i][j];
          break;
        case 5:
          elem = five[i][j];
          break;
        case 6:
          elem = six[i][j];
          break;
        case 7:
          elem = seven[i][j];
          break;
        case 8:
          elem = eight[i][j];
          break;
        case 9:
          elem = nine[i][j];
          break;
        default:
          elem = zero[i][j];
          break;
      }
      if (elem == 1) {
        leds[ XYsafe(i + 5, j + 8)]  = CRGB::WhiteSmoke;
      }
    }
  }
  FastLED.show();
}

int extractDigit(int num, int i)
{
  return num / i % 10 ;
}

void loop()
{
  currentMillis1 = millis();
  currentMillis2 = millis();

  if (firstIteration || (currentMillis1 - startMillis1 >= 180000)) {
    respCode = http.GET();
    firstIteration = false;
    startMillis1 = currentMillis1;
  }

  if (respCode > 0) {
    JsonDocument payload;
    const String response = http.getString();
    deserializeJson(payload, response);
    if (currentMillis2 - startMillis2 >= 3000) {
      if (tempView) {
        Serial.print("Response: ");
        Serial.println(response);

        int temp = (int) payload["main"]["temp"];

        Serial.print("Temp: ");
        Serial.println(temp);

        int firstDigit = extractDigit(temp, 10);
        int secondDigit = extractDigit(temp, 1);

        Serial.print("First digit: ");
        Serial.println(firstDigit);
        Serial.print("Second digit: ");
        Serial.println(secondDigit);

        drawTemp();
        drawFirstDigit(firstDigit);
        drawSecondDigit(secondDigit);
      } else {

        if (String("Clouds") == String(payload["weather"][0]["main"])) {
          if (payload["weather"][0]["id"] >= 803) {
            drawFrame(cloud_yx, "Clouds");
          } else {
            drawFrame(cloudSun_yx, "CloudSun");
          }
        } else if (String("Rain") == String(payload["weather"][0]["main"]) || String("Drizzle") == String(payload["weather"][0]["main"])) {
          drawFrame(rain_yx, "Rain");
        } else if (String("Clear") == String(payload["weather"][0]["main"])) {
          drawFrame(sun_yx, "Sun");
        } else {
          drawFrame(cloudSun_yx, "CloudSun");
        }
      }
      tempView = !tempView;
      startMillis2 = currentMillis2;
    }
  } else {
    Serial.print("error ");
    Serial.println(respCode);
  }
}




void setup() {
  startMillis1 = millis();
  startMillis2 = millis();
  Serial.begin(115200);

  // weather api
  const float lat = 48.9517;
  const float lon = 10.1703;
  const String apiKey = "e471293b25fdb6697c0a862f2695df5f";
  apiUrl = buildAPIUrl(lat, lon, apiKey);
  connectWiFi();

  if (WiFi.status() != WL_CONNECTED) {
    Serial.println(WiFi.status());
  }
  http.begin(client, apiUrl);

  FastLED.addLeds<CHIPSET, LED_PIN, COLOR_ORDER>(leds, NUM_LEDS).setCorrection(TypicalSMD5050);
  FastLED.setBrightness( BRIGHTNESS );
}