#include <WiFi.h>
#include <HTTPClient.h>
#include <HX711.h>
#include <Adafruit_SSD1306.h>

#define OLED_RESET -1 // Set the OLED reset pin to -1 if not used
Adafruit_SSD1306 display(OLED_RESET);

// Define the SSID and password for your WiFi network
const char* WIFI_SSID = "your_wifi_ssid";
const char* WIFI_PASSWORD = "your_wifi_password";

// Define the URL for the remote server
const char* SERVER_URL = "http://your_server_url.com";

// Define the pins for the HX711 module
const int LOAD_CELL_DOUT_PIN = 32;
const int LOAD_CELL_SCK_PIN = 33;

HX711 loadCell;

void setup() {
  Serial.begin(9600);

  // Initialize the OLED display
  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
  display.clearDisplay();

  // Connect to WiFi
  WiFi.begin(WIFI_SSID, WIFI_PASSWORD);
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.println("Connecting to WiFi...");
  }
  Serial.println("Connected to WiFi.");

  // Initialize the load cell module
  loadCell.begin(LOAD_CELL_DOUT_PIN, LOAD_CELL_SCK_PIN);
  loadCell.set_scale(2280);  // This value is obtained by calibrating the load cell
  loadCell.tare();           // Reset the scale to 0
}

void loop() {
  // Read the load cell value
  float weight = loadCell.get_units();

  // Display the load cell value on the OLED display
  display.clearDisplay();
  display.setTextSize(1);
  display.setCursor(0,0);
  display.println("Weight: " + String(weight) + " kg");
  display.display();

  // Send the load cell value to the remote server
  HTTPClient http;
  String url = String(SERVER_URL) + "?value=" + String(weight);
  http.begin(url);
  int httpCode = http.GET();
  if (httpCode > 0) {
    String response = http.getString();
    Serial.println("Server response: " + response);
  } else {
    Serial.println("Error sending data to server.");
  }
  http.end();

  // Delay for 1 second
  delay(1000);
}