gistfile1.txt

#include <ESP8266WiFi.h>
#include <ESP8266HTTPClient.h>
#include <WiFiClient.h>
#include <ArduinoJson.h>

const char* ssid = "replacewithyourSSID";
const char* password = "replacewithyourNetworkPassword";
const char* API_KEY = "replacewithyourWeatherAPIkey";
long sunriseTimeMinutes;
long localTimeMinutes;
boolean setSunriseAlarm = false;
const int buttonPin = 4;     // the number of the pushbutton pin
const int buzzerPin =  5; 
const int ledPin =  10; 
bool ledState = LOW;

void setup() {
  pinMode(buttonPin, INPUT);
  pinMode(buzzerPin, OUTPUT);
  pinMode(ledPin, OUTPUT);
  Serial.begin(115200);

  // Connect to Wi-Fi
  Serial.println();
  Serial.print("Connecting to ");
  Serial.println(ssid);

  WiFi.begin(ssid, password);

  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.print(".");
  }

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

long convertToMinutes(const char* time12) {
  int h, m;
  char ampm[3];
  // Extract hour, minute, and AM/PM from the input string
  sscanf(time12, "%d:%d %2s", &h, &m, ampm);
  // Convert to 24-hour format
  if (strcmp(ampm, "PM") == 0 && h != 12) {
    h += 12;
  }
  else if (strcmp(ampm, "AM") == 0 && h == 12) {
    h = 0;
  }
  long timeInMinutes = h*60+m;
  return timeInMinutes;
}

void stringToCharArray(String inputString, char* outputBuffer, int bufferSize) {
  if (inputString.length() < bufferSize) {
    inputString.toCharArray(outputBuffer, bufferSize);
  } else {
    // Handle the case where the string is too long for the buffer
    Serial.println("Error: Buffer size is too small for the input string.");
  }
}

void getSunriseTime(){
    WiFiClient client;
    HTTPClient http;
    String endpoint = "http://api.weatherapi.com/v1/forecast.json?key=" + String(API_KEY) + "&q=auto:ip&days=1";
    // Specify the IP geolocation service's endpoint
    http.begin(client, endpoint);
    // Begin the request
    int httpCode = http.GET();
    // If the request was successful, handle the response
    if (httpCode > 0) {
      String payload = http.getString();
      Serial.println(payload); // Print the response payload
      int sunrisePos = payload.indexOf("\"sunrise\":\"");
      if (sunrisePos > 0) {
        int startTime = sunrisePos + 11; // move past the identifier
        int endTime = payload.indexOf("\"", startTime);
        String sunriseTime = payload.substring(startTime, endTime);
        Serial.println("Next Sunrise Time: " + sunriseTime);
         char time12[12];
         stringToCharArray(sunriseTime, time12, sizeof(time12));
        long sunriseTimeMinutes = convertToMinutes(time12);
         Serial.println(sunriseTimeMinutes);
      }
    } else {
      Serial.printf("[HTTP] GET... failed, error: %s\n", http.errorToString(httpCode).c_str());
    }
    // End the connection
    http.end();
 }

void getCurrentTime(){
   int y, mn, d, h, m;
   WiFiClient client;
   HTTPClient http;
   String endpoint = "http://api.weatherapi.com/v1/current.json?key=" + String(API_KEY) + "&q=auto:ip"; 
   http.begin(client, endpoint);
   int httpCode = http.GET();
   if (httpCode > 0) {
      String payload = http.getString();
      int timePos = payload.indexOf("\"localtime\":\"");
      if (timePos > 0) {
        int startTime = timePos + 13; // move past the identifier
        int endTime = payload.indexOf("\"", startTime);
        String localtime = payload.substring(startTime, endTime);
        Serial.println("Current Local Time: " + localtime);
        char time12[18];
        stringToCharArray(localtime, time12, sizeof(time12));
        sscanf(time12, "%d-%d-%d %d:%d", &y, &mn, &d, &h, &m);
        long localTimeMinutes = h*60+m;
        Serial.println(localTimeMinutes);
      }
    } else {
      Serial.printf("[HTTP] GET... failed, error: %s\n", http.errorToString(httpCode).c_str());
    }
    // End the connection
    http.end();
 }

void loop() {
  if (WiFi.status() == WL_CONNECTED) {
    getSunriseTime();
    if(digitalRead(buttonPin)==LOW){
      setSunriseAlarm = !setSunriseAlarm;
	  ledState = !ledState;
	  digitalWrite(ledPin, ledState);
	  delay(50);
      }
    if(setSunriseAlarm){
      Serial.println("Sunrise Alarm is Set");
	  getCurrentTime();
	  if(localTimeMinutes-sunriseTimeMinutes==0){
			digitalWrite(buzzerPin, HIGH);
			delay(60000);
			digitalWrite(buzzerPin, LOW);
		}
  }
  delay(60000); // Delay for 1 minute before fetching again
}
}