#include "HX711.h"

#define DT 3
#define SCK 2

#define OUTPUT_PIN 13

HX711 scale;

float calibration_factor = -7050;   // adjust during calibration
float weight_limit = 1000;          // grams

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

  pinMode(OUTPUT_PIN, OUTPUT);
  digitalWrite(OUTPUT_PIN, HIGH);

  scale.begin(DT, SCK);
  scale.set_scale(calibration_factor);
  scale.tare();

  Serial.println("HX711 Ready");
}

void loop()
{
  float weight = scale.get_units(5);

  Serial.print("Weight: ");
  Serial.println(weight);

  if(weight > weight_limit)
  {
    digitalWrite(OUTPUT_PIN, LOW);   // OFF
  }
  else
  {
    digitalWrite(OUTPUT_PIN, HIGH);  // ON
  }

  delay(500);
}