// Extended ASCII
// - A00 (or A02) can be selected in diagram.json

#include <LiquidCrystal_I2C.h>
#include <Wire.h>
#include <SPI.h>

LiquidCrystal_I2C lcd (0x27, 16, 2);

int pause = 3; // pause between LCD displays

void setup() {
  Serial.begin(115200);
  lcd.init ();
  lcd.backlight();
  lcd.setCursor(0, 0);

  showExtendedASCII();
}

void showExtendedASCII() {
  int j = 0, i, x = 0, y = 0;
  for (i = 126; i < 256; i++) {
    // 128 ~ 160 unprintable, 254 space
    if (i < 128 || i > 160 && i != 254) {
      lcd.print(char(i));
      Serial.print(i);
      Serial.print(char(i));
      Serial.print(" ");
      if (i == 127 || i == 173) // 127 backspace, 173 unprintable 
        Serial.print(" ");

      if (j++ == 15) {
        j = 0;
        y++;
        if (y == 2) {
          y = 0;
          Serial.print("+ ");
          Serial.print(pause);
          Serial.print(" seconds pause");
          delay(pause * 1000); // in milliseconds
        }
        lcd.setCursor(x, y);
        Serial.println();
      }
    }
  }
  for (int i = 0; i < 3; i++) {
    delay(250);
    lcd.noBacklight();
    delay(500);
    lcd.backlight();
  }
  lcd.noBacklight();
}

void loop() {}