/*********
  Rui Santos
  Complete project details at https://randomnerdtutorials.com  
  modification: 
  Pin no. 8 pulled up to Vcc when connected to GND shows the message about it
*********/

#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define SCREEN_WIDTH 128 // OLED display width, in pixels
#define SCREEN_HEIGHT 64 // OLED display height, in pixels

// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

void setup() {
  pinMode(8, INPUT); 
  Serial.begin(115200);
  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { // Address 0x3D for 128x64
    Serial.println(F("SSD1306 allocation failed"));
    for(;;);
  }
  delay(2000);
  display.clearDisplay();
  display.display();

  delay(3000);
  display.setTextSize(3);
  display.setTextColor(WHITE);
  display.setCursor(0, 15);
  // Display static text
  display.println("Railman");
  display.display(); 
  delay(3000);
  display.clearDisplay();
  display.setTextColor(WHITE);
  display.setCursor(0, 10);
  display.println("WITA");
  display.setCursor(50, 40);
   display.setTextSize(3);
  display.println("Was");
  display.display();
  delay(3000);
}

void loop() {
  if (digitalRead (8) == LOW)
  {
  display.clearDisplay();
  display.setTextSize(2);
  display.setTextColor(WHITE);
  display.setCursor(0, 10);
  display.print("PIN 8");
  display.setCursor(0, 40);
  display.print("Stan  LOW");
  display.display();
  delay(300);
  }
  if (digitalRead(8) == HIGH)
  {
  display.clearDisplay();
  display.setTextSize(2);
  display.setTextColor(WHITE);
  display.setCursor(0, 10);
  display.print("Pin 8");
  display.setCursor(0, 30);
  display.print("Stan HIGH");
  display.display();
  delay(300);

  }