// Include the Servo library
#include <Servo.h>
#include <LiquidCrystal_I2C.h>
// Create a servo object
Servo myServo;
LiquidCrystal_I2C lcd(0x027,16,2);
int pot = A0;
int speed=0;
// Define the servo pin
const int servoPin = 9;
int angle=0;
int direction=1;

void setup() {
  // Attach the servo to pin 9
  myServo.attach(servoPin);
  
  // Initialize serial communication (optional, for debugging)
  // Serial.begin(9600);
  // Serial.println("Servo Motor Tutorial Started!");
  lcd.begin(16,2);
  lcd.backlight();
  lcd.setCursor(0,0);
}

void loop() {
  
  // Sweep from 0 to 180 degrees
  // for (int angle = 0; angle <= 180; angle++) {
  //   myServo.write(angle);
  //   if(angle%10==0){
  //     lcd.print(angle);  // Set servo position
  //   lcd.print("       ");
  //   lcd.setCursor(0,0);
  //   }
    
  //   delay(speed);              // Wait for servo to reach position
  // }
  
  // // Sweep back from 180 to 0 degrees
  // for (int angle = 180; angle >= 0; angle--) {
  //   myServo.write(angle);
  //   if(angle%10==0){
  //      lcd.print(angle);  // Set servo position
  //      lcd.print("       ");  // Set servo position
  //      lcd.setCursor(0,0);
  //   }
    
  //   delay(speed);              // Wait for servo to reach position
  // }

  speed = analogRead(pot);
  speed= map(speed, 0, 1023, 10,1);
   if(angle>180){
    angle=180;
    direction=-1;
  }
  if(angle<0){
    angle=0;
    direction =1;
  }
  angle +=direction;
  myServo.write(angle);
  delay(speed);
  lcd.setCursor(0,0);
  lcd.print("Angle: ");
  lcd.print(angle);
  lcd.print("        ");
  lcd.setCursor(0,1);
  lcd.print("Speed: ");
  lcd.print(10- speed+1);
  lcd.print("        ");
}