#include "HX711.h"

// ---------- Pin Definitions ----------
#define HX711_DT   A1   // D1
#define HX711_SCK  A0   // D0

// ---------- HX711 Setup ----------
HX711 scale;
float calibration_factor = 2280.0f;

// ---------- Timing ----------
unsigned long lastRead = 0;
const unsigned long READ_INTERVAL = 200; // ms

void setup() {
  Serial.begin(115200);
  delay(500);

  Serial.println("Initializing HX711...");

  scale.begin(HX711_DT, HX711_SCK);
  scale.set_scale(calibration_factor);
  scale.tare();

  Serial.println("HX711 ready. Reading continuously...");
}

void loop() {
  unsigned long now = millis();
  if (now - lastRead >= READ_INTERVAL) {
    lastRead = now;

    if (scale.is_ready()) {
      float weight = scale.get_units(4);

      // Serial Plotter friendly
      Serial.print("weight:");
      Serial.println(weight);
    } else {
      Serial.println("HX711 not ready");
    }
  }
}