#include <Arduino.h>
#include "soc/rtc.h"
#include "HX711.h"

// HX711 circuit wiring
const int LOADCELL_DOUT_PIN = 4;
const int LOADCELL_SCK_PIN = 2;

HX711 scale;

void setup() {
  Serial.begin(115200);  // Initialize Serial communication
  while (!Serial);       // Wait for the Serial connection to establish (if required)
  delay(2000);           // Allow Serial Monitor to initialize

  rtc_cpu_freq_config_t config;
  rtc_clk_cpu_freq_get_config(&config);
  rtc_clk_cpu_freq_set_config_fast(&config);  // Retain clock frequency

  scale.begin(LOADCELL_DOUT_PIN, LOADCELL_SCK_PIN);  // Initialize HX711

  // Set the scale factor here (calculated during calibration)
  scale.set_scale(419);  

  scale.tare();  // Zero the scale to remove any offset
  Serial.println("Scale initialized. You can now measure weight.");
}

void loop() {
  if (scale.is_ready()) {  // Ensure HX711 is ready
    float weight = scale.get_units(10);  // Average of 10 readings for stability
    Serial.print("Measured Weight: ");
    Serial.print(weight);
    Serial.println(" grams");
  } else {
    Serial.println("HX711 not found. Please check connections.");
  }
  delay(1000);  // Wait 1 second before taking another reading
}