HX711.ino

#include <HX711.h>
#include <Wire.h>
#include <LCD-I2C.h>

// HX711 connections
#define LOADCELL_DOUT_PIN 6
#define LOADCELL_SCK_PIN 5

// Initialize HX711
HX711 scale;

// Initialize the I2C LCD (make sure the address is correct)
LCD_I2C lcd(0x27, 16, 2); // Change address if necessary

void setup() {
  // Start serial communication for debugging
  Serial.begin(9600);
  
  // Initialize the LCD
  lcd.begin();
  lcd.backlight(); // Turn on the backlight
  
  // Initialize the scale
  scale.begin(LOADCELL_DOUT_PIN, LOADCELL_SCK_PIN);
  scale.set_scale(); // Set scale to the default value, adjust if needed
  scale.tare(); // Reset the scale to 0

  lcd.print("Taring..."); // Display tare message
  delay(2000); // Wait for a moment
  lcd.clear(); // Clear the LCD
}

void loop() {
  // Read weight from the scale
  float weight = scale.get_units(10); // Average of 10 readings
  
  // Print weight to serial monitor
  Serial.print("Weight: ");
  Serial.println(weight);

  // Display the weight on the LCD
  lcd.setCursor(0, 0); // Set cursor to first row
  lcd.print("Weight: ");
  lcd.setCursor(0, 1); // Set cursor to second row
  lcd.print(weight);    // Print weight
  lcd.print(" g");      // Add unit (grams)

  delay(1000); // Update every second
}