Smart Elevator simulation with arduino uno and Proteus

Smart Elevator simulation with arduino uno and Proteus

 // By HomeMade Electronics

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#include "HX711.h"  // Get this library by clicking on Sketch > Include Library > Library Manager in the Arduino IDE and install it from there

#include <LiquidCrystal.h>

// Define calibration factor obtained using the SparkFun_HX711_Calibration sketch

#define calibration_factor 18029.57 

// Define pin numbers

#define IN1 4

#define IN2 5

#define DOUT  3

#define CLK  2

#define Bstart 6

#define Bstop 7

#define Bstopage 1

float weight; // Variable to store weight measurement

HX711 scale;

LiquidCrystal lcd(13, 12, 11, 10, 9, 8);

// Function to move motor forward

void forward() {

  digitalWrite(IN1, HIGH);

  digitalWrite(IN2, LOW);

}

// Function to move motor backward

void backward() {

  digitalWrite(IN1, LOW);

  digitalWrite(IN2, HIGH); 

}

// Function to stop motor movement

void stopage() {

  digitalWrite(IN1, LOW);

  digitalWrite(IN2, LOW); 

}

void setup() {

  pinMode(IN1, OUTPUT);

  pinMode(IN2, OUTPUT);

  // Initialize LCD

  lcd.begin(16, 2);

  // Initialize button pins

  pinMode(Bstart, INPUT);

  pinMode(Bstop, INPUT);

  pinMode(Bstopage, INPUT);

  

  // Initialize load cell

  scale.begin(DOUT, CLK);

  scale.set_scale(calibration_factor); // Set the scale calibration factor

  scale.tare(); // Reset the scale to 0 assuming no weight on it at startup

}

void loop() {

  // Get weight measurement and display on LCD

  weight = scale.get_units() / 2; // Dividing by 2 to convert from grams to kilograms

  lcd.setCursor(0, 0);

  lcd.print("WEIGHT MEASURED");

  lcd.setCursor(6, 1);

  lcd.print(weight, 1); 

  lcd.print(" Kg");

  // Check weight and control motor accordingly

  if (weight > 60) {

    stopage(); // If weight exceeds 60 Kg, stop the motor

  } else {

    if (digitalRead(Bstart) == LOW) {

      forward(); // If start button is pressed, move motor forward

    }

  }

  reverse(); // Check for reverse movement condition

  m_stopage(); // Check for stoppage condition

}

// Function to handle reverse movement of the motor

void reverse() {

  if (digitalRead(Bstop) == LOW) { // If stop button is pressed

    if (weight > 60)

      stopage(); // Stop motor if weight exceeds 60 Kg

    else

      backward(); // Otherwise, move motor backward

  }

}

// Function to handle manual stoppage of the motor

void m_stopage() {

  if (digitalRead(Bstopage) == LOW) // If stopage button is pressed

    stopage(); // Stop the motor

}