Arduino ESP8266 Ring

#include <ESP8266WiFi.h>
#include <WiFiClientSecure.h>
#include <ESP8266HTTPClient.h>

#define BUZZER_PIN D2 // GPIO pin for the buzzer (low-level trigger)

// WiFi credentials
const char* ssid = "Galaxy A34 5G A1EB";         // Replace with your WiFi SSID
const char* password = "galaxy1234"; // Replace with your WiFi password

// API URL
const char* apiUrl = "https://etourmersing.com/Ebike_API/ring.php?endpoint=command";

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

  // Set up the buzzer pin
  pinMode(BUZZER_PIN, OUTPUT);
  digitalWrite(BUZZER_PIN, HIGH); // Keep the buzzer OFF initially (low-level trigger)

  // Connect to WiFi
  Serial.println("Connecting to WiFi...");
  WiFi.begin(ssid, password);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.print(".");
  }
  Serial.println("\nWiFi connected!");
  Serial.print("IP Address: ");
  Serial.println(WiFi.localIP()); // Print the ESP8266's IP address
}

void loop() {
  if (WiFi.status() == WL_CONNECTED) {
    WiFiClientSecure client; // Secure client for HTTPS
    client.setInsecure();    // Disable SSL certificate validation (for testing purposes)

    HTTPClient http; // Create an HTTPClient object

    Serial.println("Sending GET request to API...");
    http.begin(client, apiUrl); // Connect to the API server

    int httpCode = http.GET(); // Send a GET request to the API

    if (httpCode == HTTP_CODE_OK) {
      String payload = http.getString(); // Get the response from the server
      Serial.println("Command received: " + payload);

      // Check if the command is "ring"
      if (payload.indexOf("ring") != -1) {
        ringBuzzer(); // Trigger the buzzer
      }
    } else {
      Serial.println("Failed to fetch command. HTTP code: " + String(httpCode));
    }

    http.end(); // End the HTTP connection
  } else {
    Serial.println("WiFi not connected. Retrying...");
  }

  delay(1000); // Poll the server every 5 seconds
}

void ringBuzzer() {
  Serial.println("Buzzer is ringing!");
  digitalWrite(BUZZER_PIN, LOW); // Turn the buzzer ON (low-level trigger)
  delay(1000);                   // Keep it ON for 1 second
  digitalWrite(BUZZER_PIN, HIGH); // Turn the buzzer OFF
}