// Make sure these definitions are before including the Blynk library
#define BLYNK_TEMPLATE_ID "TMPL6giX2wt7e"
#define BLYNK_TEMPLATE_NAME "LOADCELL IoT"
#define BLYNK_AUTH_TOKEN "t8mXNn4H_JNvl1t09dMv9wqC-c6XmcKT"
#define BLYNK_PRINT Serial


#include <Adafruit_SSD1306.h>
#include <BlynkSimpleEsp32.h>
#include <WiFi.h>
#include <WiFiClient.h>
#include "HX711.h"
#include <ESP32Servo.h>

#define SCL_PIN 22
#define SDA_PIN 21

#define LED_PIN 16

uint16_t berat1 = 0;
int servoPin = 32;
uint8_t angle = 0;

Adafruit_SSD1306 display(128, 64, &Wire, -1);
HX711 scale;
Servo myservo;

void setup() {
  // Initialize serial communication
  Serial.begin(115200);
  Serial.println("Hello, ESP32-S3!");

  char ssid[] = "Wokwi-GUEST";
  char pass[] = "";

  // Initialize Blynk connection
  Blynk.begin(BLYNK_AUTH_TOKEN, ssid, pass);

  // Initialize I2C and HX711
  Wire.begin(SDA_PIN, SCL_PIN);
  scale.begin(25, 26); // DT, SCK
  scale.set_scale(); // Adjust to this calibration factor
  scale.tare();      // Reset the scale to 0
  myservo.attach(servoPin);

  // Initialize display
  if (!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println(F("SSD1306 allocation failed"));
    for (;;); // Stay in an infinite loop if display initialization fails
  }

  display.clearDisplay();
  display.setTextSize(2);
  display.setTextColor(WHITE);
  display.setCursor(0, 0);
  display.print("Init...");
  display.display();

  pinMode(LED_PIN, OUTPUT);
}

void Loadcell() {
  uint16_t berat = round(scale.get_units() * 50 / 21); // Convert to grams

  if (berat != berat1) {
    Serial.print("Berat: ");
    Serial.println(berat);

    display.clearDisplay();
    display.setTextSize(2);
    display.setTextColor(WHITE);
    display.setCursor(0, 0);
    display.println(F("Berat:"));
    display.setCursor(0, 25);
    display.print(berat / 1000.0, 2); // Convert to kg for display
    display.println(F(" kg"));
    display.display();

    berat1 = berat;
    Blynk.virtualWrite(V0, berat1);
  }
}

BLYNK_WRITE(V1)
{
  uint8_t pinValue = param.asInt();
  Serial.print("V1 value : ");
  Serial.println(pinValue);
  digitalWrite(LED_PIN, pinValue);
}

BLYNK_WRITE(V2)
{
  angle = param.asInt();
  Serial.print("V2 angle : ");
  Serial.println(angle);
  // myservo.write(param.asInt());
  myservo.write(angle);
}

BLYNK_WRITE(V3)
{
  Serial.println(param[0].asInt());
  Serial.print("Start time in sec: ");
  Serial.println(param[1].asInt()); 
  Serial.print("Stop time in sec: "); 
}

void loop() {
  Blynk.run();
  Loadcell();
}