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

#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64

#define OLED_RESET    -1
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

// Button pin definitions
const int buttonLeftPin = 2;   // Change to your button pin number
const int buttonRightPin = 3;  // Change to your button pin number
const int buttonUpDownPin = 4; // Change to your button pin number

// Text to be displayed
const char* displayText = "Your text goes here!";

void setup() {
  // Initialize the display
  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) {
    Serial.println(F("SSD1306 allocation failed"));
    for(;;);
  }

  // Clear the buffer
  display.clearDisplay();
  
  // Initialize button pins as inputs with pull-ups
  pinMode(buttonLeftPin, INPUT_PULLUP);
  pinMode(buttonRightPin, INPUT_PULLUP);
  pinMode(buttonUpDownPin, INPUT_PULLUP);
}

void loop() {
  // Set initial position for scrolling
  int scrollX = 0;
  int scrollY = 15; // Initial Y position

  while (true) {
    // Clear display before displaying text
    display.clearDisplay();
    
    // Display text on OLED
    display.setTextSize(1);
    display.setTextColor(SSD1306_WHITE);
    display.setCursor(scrollX, scrollY);
    display.println(displayText);
    display.display();

    // Check button presses for scrolling
    if (digitalRead(buttonLeftPin) == LOW) {
      scrollX++; // Scroll right
      delay(50); // Adjust delay for scrolling speed
    }
    if (digitalRead(buttonRightPin) == LOW) {
      scrollX--; // Scroll left
      delay(50); // Adjust delay for scrolling speed
    }
    if (digitalRead(buttonUpDownPin) == LOW) {
      scrollY--; // Move text up
      delay(50); // Adjust delay for scrolling speed
    }

    // Limit scrolling bounds
    if (scrollX < -128) {
      scrollX = -128;
    }
    if (scrollX > SCREEN_WIDTH) {
      scrollX = SCREEN_WIDTH;
    }
    if (scrollY < 0) {
      scrollY = 0;
    }
    if (scrollY > SCREEN_HEIGHT - 10) {
      scrollY = SCREEN_HEIGHT - 10;
    }
  }
}