LCD Code Please

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12

Hello,

I am in a need of help i have a project that consist of controlling a DC motor speed with a potentiometer and a L298D . I made it only that far, now i'm stuck to how to add a display that shows the speed . I have no idea how to write it's code.Please i really need help.

The code:

// Arduino DC motor speed and direction control
 
#define button   8
#define pot      0
#define pwm1     9
#define pwm2    10
 
boolean motor_dir = 0;
int motor_speed;
 
void setup() {
  pinMode(button, INPUT_PULLUP);
  pinMode(pwm1,   OUTPUT);
  pinMode(pwm2,   OUTPUT);
}
 
void loop() {
  motor_speed = analogRead(pot) / 4;
  if(motor_dir)
    analogWrite(pwm1, motor_speed);
  else
    analogWrite(pwm2, motor_speed);
  if(!digitalRead(button)){                // If direction button is pressed
    while(!digitalRead(button));           // Wait until direction button released
    motor_dir = !motor_dir;                // Toggle direction variable
    if(motor_dir)
      digitalWrite(pwm2, 0);
    else
      digitalWrite(pwm1, 0);
  }
}