Project 1 - Controlling a DC motor using PWM and monitoring its Running status

#include<LiquidCrystal.h>

LiquidCrystal lcd(12, 11, 5, 4, 3, 2);

#define potentiometer A0

#define bt_F A1

#define bt_S A2

#define bt_B A3

#define M1_34EN 10

#define M1_3A 9

#define M1_4A 8

int read_ADC=0;

int duty_cycle;

int duty_cycle_lcd;

int set = 0;

void setup(){

Serial.begin(9600);

pinMode(potentiometer, INPUT);

pinMode(bt_F, INPUT_PULLUP);

pinMode(bt_S, INPUT_PULLUP);

pinMode(bt_B, INPUT_PULLUP);

pinMode(M1_34EN, OUTPUT);

pinMode(M1_3A, OUTPUT);

pinMode(M1_4A, OUTPUT);

lcd.begin(16,2);

lcd.setCursor(0,1);

lcd.print("Hi");

delay(2000);

lcd.clear();

}

void loop() {

read_ADC = analogRead(potentiometer);

duty_cycle = map(read_ADC, 0, 1023, 0,255);

duty_cycle_lcd = map(read_ADC, 0, 1023,0, 100);

analogWrite(M1_34EN, duty_cycle);

lcd.setCursor(0,0);

lcd.print("Duty Cycle:");

lcd.print(duty_cycle_lcd);

lcd.print("% ");

if(digitalRead (bt_F) == 0)(set = 1);

if(digitalRead (bt_S) == 0)(set = 0);

if(digitalRead (bt_B) == 0)(set = 2);

lcd.setCursor(0,1);

if(set==0) { lcd.print(" Stop ");

digitalWrite(M1_3A, LOW);

digitalWrite(M1_4A, LOW);

}

if(set==1){lcd.print(" Clockwise ");

digitalWrite(M1_3A, HIGH);

digitalWrite(M1_4A, LOW);

}

if(set==2){lcd.print(" Anticlockwise ");

digitalWrite(M1_3A, LOW);

digitalWrite(M1_4A, HIGH);

}

delay(50);

}