clock.ino

#include <Wire.h>
#include <SPI.h>
#include <WiFi101.h>

#include <Adafruit_NeoPixel.h>

const char* ssid  = "yourwifissid";      // The SSID (name) of your Wi-Fi network
const char* pass  = "yourwifipassword";      // The password of the Wi-Fi network

String payload;               // Variables to accept data
String nowday;
String nowmonth;
String nowyear;
String nowhour;
String nowmin;
String nowsec;
int d;                                                        // Variables to hold data as integers
int mo;
int y;
int h;
int mi;
int s;

unsigned long prevMillis = millis();
unsigned long interval = 30000; 


#define LED_PIN    6



Adafruit_NeoPixel strip(104, 6, NEO_GRB + NEO_KHZ800);

int itis[] = {8,9,11,12};
int five[] = {35,36,37,38};
int ten[] =  {4,5,6};
int half[] = {0,1,2,3};
int quarter[] = {13,14,15,16,17,18,19 };
int twenty[] = {20,21,22,23,24,25};
int minutes[] = {27,28,29,30,31,32,33};
int past[] = {39, 40, 41, 42};
int to[] = {43,44};

int h_one[] = {46,47,48};
int h_two[] = {49,50,51};
int h_three[] = {60, 61, 62, 63, 64};
int h_four[] = {59, 58, 57, 56};
int h_five[] = {52, 53, 54, 55};
int h_six[] = {65, 66, 67};
int h_seven[] = {68, 69,70,71,72};
int h_eight[] = {73, 74, 75, 76, 77};
int h_nine[] = {87,88,89,90};
int h_ten[] = {86,85,84};
int h_eleven[]={83,82,81,80,79,78};
int h_twelve[] = {91,92,93,94,95,96};


int oclock[] = {103, 102, 101, 100, 99, 98};
int hour_red = 150;
int hour_green = 0; 
int hour_blue = 150;

int mins_red = 0;
int mins_green = 100;
int mins_blue =  100;

uint32_t magenta = strip.Color(150, 0, 150);

uint32_t yellow = strip.Color(100, 100, 0);

WiFiClient client;
char server[] = "api.timezonedb.com";
int status = WL_IDLE_STATUS;


void setup() {
  Serial.begin(115200);

  if (WiFi.status() == WL_NO_SHIELD) {
    Serial.println("WiFi shield not present");
    // don't continue:
    while (true);
  }

  strip.begin();
  strip.show(); // Initialize all pixels to 'off'
}



void loop() {

  status = WiFi.begin(ssid, pass);
  while (status != WL_CONNECTED) {
    Serial.print("Attempting to connect to SSID: ");
    Serial.println(ssid);
    // Connect to WPA/WPA2 network. Change this line if using open or WEP network:
    status = WiFi.begin(ssid, pass);

    delay(10000);
  }
  
  Serial.println("Connected to wifi");
  printWiFiStatus();

  Serial.println("\nStarting connection to server...");
  // if you get a connection, report back via serial:
  if (client.connect(server, 80)) {
    Serial.println("connected to server");
    // Make a HTTP request:
    client.println("GET /v2/get-time-zone?key=IAIFGXNLMT2Z&format=xml&fields=formatted&by=zone&zone=Europe/London HTTP/1.1");
    client.println("Host: api.timezonedb.com");
    client.println("Connection: close");
    client.println();
  }

    delay(10000);

  payload = "";

  Serial.println("stand by for data");

  while (client.available()) {
    char c = client.read();
    Serial.write(c);
    if (c == '\n') {
     payload = "";
    }
    payload += c;
    if(payload.endsWith("</result>")) {
      parse_response();
    }
  }


  makewords();
  strip.show();


  //shutdown the wifi connection
  client.stop();
  WiFi.end();
  delay(60000);
}

void makewords() {
//blank strip
strip.fill();
  lightup(itis, 4, 100,100,0);
  
// what hour
  int hour = h;

  if (mi > 33) {
    hour+=1;
  } 

  if (hour > 12) { hour -= 12;}
  


if (hour==1) { lightup(h_one, 3, hour_red, hour_green, hour_blue); }
if (hour==2) { lightup(h_two, 3, hour_red, hour_green, hour_blue); }
if (hour==3) { lightup(h_three, 5, hour_red, hour_green, hour_blue); }
if (hour==4) { lightup(h_four, 4, hour_red, hour_green, hour_blue); }
if (hour==5) { lightup(h_five, 4, hour_red, hour_green, hour_blue); }
if (hour==6) { lightup(h_six, 3, hour_red, hour_green, hour_blue); }
if (hour==7) { lightup(h_seven, 5, hour_red, hour_green, hour_blue); }
if (hour==8) { lightup(h_eight, 5, hour_red, hour_green, hour_blue); }
if (hour==9) { lightup(h_nine, 4, hour_red, hour_green, hour_blue); }
if (hour==10) { lightup(h_ten, 3, hour_red, hour_green, hour_blue); }
if (hour==11) { lightup(h_eleven, 6, hour_red, hour_green, hour_blue); }
if (hour==12) { lightup(h_twelve, 6, hour_red, hour_green, hour_blue); }

//past or to?

if (mi > 3 && mi < 34) { lightup(past, 4,0, 150, 0); }
if (mi > 33 && mi < 58) {lightup(to,2,0,150,0);}
if (mi > 57 || mi < 4) {lightup(oclock,6,50, 50, 100);}

// minutes

if (mi > 3 && mi < 8) {lightup(five, 4, mins_red, mins_green, mins_blue); lightup(minutes, 7,mins_red,mins_green, mins_blue);}
if (mi > 7 && mi < 14) {lightup(ten, 3, mins_red, mins_green, mins_blue); lightup(minutes, 7,mins_red,mins_green, mins_blue);}
if (mi > 13 && mi < 18) { lightup(quarter, 7,mins_red, mins_green, mins_blue);}
if (mi > 17 && mi < 24) { lightup(twenty, 6,mins_red, mins_green, mins_blue); lightup(minutes, 7,mins_red,mins_green, mins_blue);}
if (mi > 23 && mi < 28) { lightup(twenty, 6,mins_red, mins_green, mins_blue); lightup(five, 4, mins_red, mins_green, mins_blue); lightup(minutes, 7,mins_red,mins_green, mins_blue);}
if (mi > 27 && mi < 34) { lightup(half, 4, mins_red, mins_green, mins_blue);}
if (mi > 53 && mi < 58) {lightup(five, 4, mins_red, mins_green, mins_blue); lightup(minutes, 7,mins_red,mins_green, mins_blue);}
if (mi > 47 && mi < 54) {lightup(ten, 3, mins_red, mins_green, mins_blue); lightup(minutes, 7,mins_red,mins_green, mins_blue);}
if (mi > 43 && mi < 48) { lightup(quarter, 7,mins_red, mins_green, mins_blue);}
if (mi > 37 && mi < 44) { lightup(twenty, 6,mins_red, mins_green, mins_blue); lightup(minutes, 7,mins_red,mins_green, mins_blue);}
if (mi > 33 && mi < 38) { lightup(twenty, 6,mins_red, mins_green, mins_blue); lightup(five, 4, mins_red, mins_green, mins_blue); lightup(minutes, 7,mins_red,mins_green, mins_blue);}


  
}

void lightup(int letters[], int letters_len, int red, int green, int blue) {
  int arraylen = sizeof(letters);
  for(int i = 0; i<letters_len; i++) {
    strip.setPixelColor(letters[i], red, green, blue);
  }

  strip.show();

}


//stolen from https://forum.arduino.cc/index.php?topic=527662.0


void parse_response() {
  int colon = payload.indexOf(':');                 // Set the first colon in time as reference point

  Serial.println(payload);
  Serial.println("colon");
  Serial.println(colon);

  nowday = payload.substring(colon - 5, colon - 3);     // Get data as substring
  Serial.println(nowday);
  d = nowday.toInt();                                                // and convert to int
  nowmonth = payload.substring(colon - 8, colon - 6);
  mo = nowmonth.toInt();
  nowyear = payload.substring(colon - 13, colon - 9);
  y = nowyear.toInt();

  nowhour = payload.substring(colon - 2, colon);
  h = nowhour.toInt();
  nowmin = payload.substring(colon + 1, colon + 3);
  mi = nowmin.toInt();
  nowsec = payload.substring(colon + 4, colon + 6);
  s = nowsec.toInt();

  // Print integers without leading zeros - use in calculations

  Serial.print("Today's date is:   ");
  Serial.print(y);
  Serial.print("-");
  Serial.print(mo);
  Serial.print("-");
  Serial.println(d);

  Serial.print("Current local time is:   ");
  Serial.print(h);
  Serial.print(":");
  Serial.print(mi);
  Serial.print(":");
  Serial.println(s);
  Serial.println();

}


///from arduino wifi sketch

void printWiFiStatus() {
  // print the SSID of the network you're attached to:
  Serial.print("SSID: ");
  Serial.println(WiFi.SSID());
  Serial.println("status");
  Serial.println(status);

  // print your WiFi shield's IP address:
  IPAddress ip = WiFi.localIP();
  Serial.print("IP Address: ");
  Serial.println(ip);

  // print the received signal strength:
  long rssi = WiFi.RSSI();
  Serial.print("signal strength (RSSI):");
  Serial.print(rssi);
  Serial.println(" dBm");
}