// ## How to calibrate your load cell
// 1. Call `set_scale()` with no parameter.
// 2. Call `tare()` with no parameter.
// 3. Place a known weight on the scale and call `get_units(10)`.
// 4. Divide the result in step 3 to your known weight. You should
//    get about the parameter you need to pass to `set_scale()`.
// 5. Adjust the parameter in step 4 until you get an accurate reading.


#include <HX711.h>

HX711 loadcell;

const int dout_pin = 10;
const int sck_pin = 11;


void runTimeTare();


void setup() {
  // put your setup code here, to run once:
  loadcell.begin(dout_pin, sck_pin);
  Serial.begin(9600);
  loadcell.set_scale();
  loadcell.tare();
}

void loop() {
  // put your main code here, to run repeatedly:
  long scaled_reading = loadcell.get_units(10);
  Serial.println(scaled_reading);

  runTimeTare();


  delay(500);
}

void runTimeTare()
{
    String input;
    if (Serial.available() > 0) 
    {
      input = Serial.readString();
    }
    
    input.trim();
    if (input == "tare") 
    {
    loadcell.tare();
    Serial.println("Tare complete");  
    }
    
  
}