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

// scale inialization
const int ld_cell=4;
const int ld_clk=2;
HX711 scale;

// wifi initialization
const char* ssid = "Wokwi-GUEST";
const char* password = "";

//thingspeak initialization
unsigned long channelID = 2634296;
String apiKey = "K2FGDTLSIUGR828O"; 

void setup() {
  Serial.begin(115200);
  //wifi setup
  WiFi.begin(ssid, password);
  Serial.println("Connecting to WiFi...");
  while (WiFi.status() != WL_CONNECTED) {
    delay(1000);
    Serial.print(".");
  }

  Serial.println();
  Serial.println("Connected to WiFi");
  

  //scale setup
  scale.begin(ld_cell, ld_clk);
  scale.set_gain(128);
  scale.set_scale();
  scale.tare();
  Serial.println("Scale initialized. Place an object on the scale to measure its weight.");

  
}

void loop() {
  //client initiate
  HTTPClient http;

  long reading = scale.get_units(10);
   Serial.print("Weight: ");
  Serial.print(reading/419.8);
  Serial.println(" grams");
  delay(1000); 

  //server initiate
  ThingSpeak.setField(1, Write);
  ThingSpeak.writeFields(channelID, apiKey);
}