#include <LiquidCrystal_I2C.h>

LiquidCrystal_I2C lcd(0x27, 16, 2);

void setup() {
  lcd.init();
  lcd.backlight();
  lcd.println("PORTB");
  pinMode(0, OUTPUT);
  pinMode(1, OUTPUT);
  pinMode(2, OUTPUT);
  pinMode(3, OUTPUT);
  pinMode(4, OUTPUT);
  pinMode(5, OUTPUT);
  pinMode(6, OUTPUT);
  pinMode(7, OUTPUT);
}

int value = -1;
void loop() {
PORTB  = B10101010;  // sets Arduino pins 1 to 7 as outputs, pin 0 as input
  lcd.setCursor(6, 1);
  lcd.print(PORTB);
  lcd.print("   ");
  value = PINB;
  delay(1000);
  PORTB  = B01010101;  // sets Arduino pins 1 to 7 as outputs, pin 0 as input
  lcd.setCursor(6, 1);
  lcd.print(PORTB);
  lcd.print("   ");
  value = PINB;
  delay(1000);
  PORTB  = B00000000;  // sets Arduino pins 1 to 7 as outputs, pin 0 as input
  lcd.setCursor(6, 1);
  lcd.print(PORTB);
  lcd.print("   ");
  value = PINB;
  delay(1000);
  PORTB  = B11110000;  // sets Arduino pins 1 to 7 as outputs, pin 0 as input
  lcd.setCursor(6, 1);
  lcd.print(PORTB);
  lcd.print("   ");
  value = PINB;
  delay(1000);
  PORTB  = B00001111;  // sets Arduino pins 1 to 7 as outputs, pin 0 as input
  lcd.setCursor(6, 1);
  lcd.print(PORTB);
  lcd.print("   ");
  value = PINB;
  delay(1000);
  PORTB  = B00000000;  // sets Arduino pins 1 to 7 as outputs, pin 0 as input
  lcd.setCursor(6, 1);
  lcd.print(PORTB);
  lcd.print("   ");
  value = PINB;
  delay(1000);
  PORTB  = B00000001;  // sets Arduino pins 1 to 7 as outputs, pin 0 as input
  lcd.setCursor(6, 1);
  lcd.print(PORTB);
  lcd.print("   ");
  value = PINB;
  delay(1000);
  PORTB  = B00000010;  // sets Arduino pins 1 to 7 as outputs, pin 0 as input
  lcd.setCursor(6, 1);
  lcd.print(PORTB);
  lcd.print("   ");
  value = PINB;
  delay(1000);
  PORTB  = B00000100;  // sets Arduino pins 1 to 7 as outputs, pin 0 as input
  lcd.setCursor(6, 1);
  lcd.print(PORTB);
  lcd.print("   ");
  value = PINB;
  delay(1000);
  PORTB  = B00001000;  // sets Arduino pins 1 to 7 as outputs, pin 0 as input
  lcd.setCursor(6, 1);
  lcd.print(PORTB);
  lcd.print("   ");
  value = PINB;
  delay(1000);
  PORTB  = B00010000;  // sets Arduino pins 1 to 7 as outputs, pin 0 as input
  lcd.setCursor(6, 1);
  lcd.print(PORTB);
  lcd.print("   ");
  value = PINB;
  delay(1000);
  PORTB  = B00100000;  // sets Arduino pins 1 to 7 as outputs, pin 0 as input
  lcd.setCursor(6, 1);
  lcd.print(PORTB);
  lcd.print("   ");
  value = PINB;
  delay(1000);
  PORTB  = B01000000;  // sets Arduino pins 1 to 7 as outputs, pin 0 as input
  lcd.setCursor(6, 1);
  lcd.print(PORTB);
  lcd.print("   ");
  value = PINB;
  delay(1000);
  PORTB  = B10000000;  // sets Arduino pins 1 to 7 as outputs, pin 0 as input
  lcd.setCursor(6, 1);
  lcd.print(PORTB);
  lcd.print("   ");
  value = PINB;
  delay(1000);
  PORTB  = B00000000;  // sets Arduino pins 1 to 7 as outputs, pin 0 as input
  lcd.setCursor(6, 1);
  lcd.print(PORTB);
  lcd.print("   ");
  value = PINB;
  delay(1000);
  PORTB  = B00000001;  // sets Arduino pins 1 to 7 as outputs, pin 0 as input
  lcd.setCursor(6, 1);
  lcd.print(PORTB);
  lcd.print("   ");
  value = PINB;
  delay(1000);
  PORTB  = B00000011;  // sets Arduino pins 1 to 7 as outputs, pin 0 as input
  lcd.setCursor(6, 1);
  lcd.print(PORTB);
  lcd.print("   ");
  value = PINB;
  delay(1000);
  PORTB  = B00000111;  // sets Arduino pins 1 to 7 as outputs, pin 0 as input
  lcd.setCursor(6, 1);
  lcd.print(PORTB);
  lcd.print("   ");
  value = PINB;
  delay(1000);
  PORTB  = B00001111;  // sets Arduino pins 1 to 7 as outputs, pin 0 as input
  lcd.setCursor(6, 1);
  lcd.print(PORTB);
  lcd.print("   ");
  value = PINB;
  delay(1000);
  PORTB  = B00011111;  // sets Arduino pins 1 to 7 as outputs, pin 0 as input
  lcd.setCursor(6, 1);
  lcd.print(PORTB);
  lcd.print("   ");
  value = PINB;
  delay(1000);
  PORTB  = B00111111;  // sets Arduino pins 1 to 7 as outputs, pin 0 as input
  lcd.setCursor(6, 1);
  lcd.print(PORTB);
  lcd.print("   ");
  value = PINB;
  delay(1000);
  PORTB  = B01111111;  // sets Arduino pins 1 to 7 as outputs, pin 0 as input
  lcd.setCursor(6, 1);
  lcd.print(PORTB);
  lcd.print("   ");
  value = PINB;
  delay(1000);
  PORTB  = B11111111;  // sets Arduino pins 1 to 7 as outputs, pin 0 as input
  lcd.setCursor(6, 1);
  lcd.print(PORTB);
  lcd.print("   ");
  value = PINB;
  delay(1000);
  PORTB  = B00000000;  // sets Arduino pins 1 to 7 as outputs, pin 0 as input
  lcd.setCursor(6, 1);
  lcd.print(PORTB);
  lcd.print("   ");
  value = PINB;
  delay(1000);
}