#include <LiquidCrystal_I2C.h>

#define LCD_ADDR 0x27
#define LCD_COLUMNS 16
#define LCD_ROWS 2

LiquidCrystal_I2C lcd(LCD_ADDR, LCD_COLUMNS, LCD_ROWS);

int led1 = 13;
int led2 = 12;
int led3 = 11;
int led4 = 10;
int led5 = 9;
int led6 = 8;
int led7 = 7;
int led8 = 6;
int led9 = 5;
int led10 = 4;

int rotate = 0;

void setup() {
  Serial.begin(9600);

  pinMode(led1, OUTPUT);
  pinMode(led2, OUTPUT);
  pinMode(led3, OUTPUT);
  pinMode(led4, OUTPUT);
  pinMode(led5, OUTPUT);
  pinMode(led6, OUTPUT);
  pinMode(led7, OUTPUT);
  pinMode(led8, OUTPUT);
  pinMode(led9, OUTPUT);
  pinMode(led10, OUTPUT);
  
  pinMode(A0, INPUT);

  lcd.begin(16,2);
  lcd.backlight();
  

}  

void loop() {
  digitalWrite(led1, LOW);
  digitalWrite(led2, LOW);
  digitalWrite(led3, LOW);
  digitalWrite(led4, LOW);
  digitalWrite(led5, LOW);
  digitalWrite(led6, LOW);
  digitalWrite(led7, LOW);
  digitalWrite(led8, LOW);
  digitalWrite(led9, LOW);
  digitalWrite(led10, LOW);

  

  rotate = analogRead(A0)/4; // делим на 10 для получения значений с потенциометра в диапазоне 0-102
  Serial.println(rotate); // выводим в консоль  
  
  if ((rotate > 0)&&(rotate<10)){
    digitalWrite(led1, HIGH);
    digitalWrite(led10, HIGH);
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print(rotate);
    lcd.setCursor(0, 1);
    lcd.print(rotate);



  }

  if ((rotate > 10)&&(rotate<20)){
    digitalWrite(led1, HIGH);
    digitalWrite(led2, HIGH);
    digitalWrite(led9, HIGH);
    digitalWrite(led10, HIGH);
    lcd.clear();

    lcd.setCursor(0, 0);
    lcd.print(rotate);
    lcd.setCursor(0, 1);
    lcd.print(rotate);
    
  }

  if ((rotate > 20)&&(rotate<30)){
    digitalWrite(led1, HIGH);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, HIGH);
    digitalWrite(led8, HIGH);
    digitalWrite(led9, HIGH);
    digitalWrite(led10, HIGH);
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print(rotate);
    lcd.setCursor(0, 1);
    lcd.print(rotate);
  }

  if ((rotate > 30)&&(rotate<40)){
    digitalWrite(led1, HIGH);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, HIGH);
    digitalWrite(led4, HIGH);
    digitalWrite(led7, HIGH);
    digitalWrite(led8, HIGH);
    digitalWrite(led9, HIGH);
    digitalWrite(led10, HIGH);

    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print(rotate);
    lcd.setCursor(0, 1);
    lcd.print(rotate);
    
  }

  if ((rotate > 40)&&(rotate<50)){
    digitalWrite(led1, HIGH);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, HIGH);
    digitalWrite(led4, HIGH);
    digitalWrite(led5, HIGH);
    digitalWrite(led6, HIGH);
    digitalWrite(led7, HIGH);
    digitalWrite(led8, HIGH);
    digitalWrite(led9, HIGH);
    digitalWrite(led10, HIGH);

    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print(rotate);
    lcd.setCursor(0, 1);
    lcd.print(rotate);
  }

  if ((rotate > 50)&&(rotate<60)){
    digitalWrite(led1, HIGH);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, HIGH);
    digitalWrite(led4, HIGH);
    digitalWrite(led5, HIGH);
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print(rotate);
    lcd.setCursor(0, 1);
    lcd.print(rotate);
  }

  if ((rotate > 60)&&(rotate<70)){
    digitalWrite(led1, HIGH);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, HIGH);
    digitalWrite(led4, HIGH);
    digitalWrite(led5, HIGH);
    digitalWrite(led6, HIGH);
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print(rotate);
    lcd.setCursor(0, 1);
    lcd.print(rotate);
  }

  if ((rotate > 70)&&(rotate<80)){
    digitalWrite(led1, HIGH);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, HIGH);
    digitalWrite(led4, HIGH);
    digitalWrite(led5, HIGH);
    digitalWrite(led6, HIGH);
    digitalWrite(led7, HIGH);
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print(rotate);
    lcd.setCursor(0, 1);
    lcd.print(rotate);
  }

  if ((rotate > 80)&&(rotate<90)){
    digitalWrite(led1, HIGH);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, HIGH);
    digitalWrite(led4, HIGH);
    digitalWrite(led5, HIGH);
    digitalWrite(led6, HIGH);
    digitalWrite(led7, HIGH);
    digitalWrite(led8, HIGH);
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print(rotate);
    lcd.setCursor(0, 1);
    lcd.print(rotate);

  }

  if ((rotate > 90)&&(rotate<100)){
    digitalWrite(led1, HIGH);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, HIGH);
    digitalWrite(led4, HIGH);
    digitalWrite(led5, HIGH);
    digitalWrite(led6, HIGH);
    digitalWrite(led7, HIGH);
    digitalWrite(led8, HIGH);
    digitalWrite(led9, HIGH);
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print(rotate);
    lcd.setCursor(0, 1);
    lcd.print(rotate);
  }

  if (rotate > 100){
    digitalWrite(led1, HIGH);
    digitalWrite(led2, HIGH);
    digitalWrite(led3, HIGH);
    digitalWrite(led4, HIGH);
    digitalWrite(led5, HIGH);
    digitalWrite(led6, HIGH);
    digitalWrite(led7, HIGH);
    digitalWrite(led8, HIGH);
    digitalWrite(led9, HIGH);
    digitalWrite(led10, HIGH);
    lcd.clear();
    lcd.setCursor(0, 0);
    lcd.print(rotate);
    lcd.setCursor(0, 1);
    lcd.print(rotate);
  }
}