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

#define OLED_RESET -1 
#define SCREEN_ADDRESS 0x3C
#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64

Adafruit_SSD1306 oled(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

void setup() {
    Serial.begin(9600);
    
    // Initialize OLED display with I2C address 0x3C
    if (!oled.begin(SSD1306_SWITCHCAPVCC, SCREEN_ADDRESS)) {
        Serial.println(F("failed to start SSD1306 OLED"));
        while (1);
    }
    
    // Clear display
    oled.clearDisplay();
    
    // Set text size, color, and cursor position
    oled.setTextSize(1);
    oled.setTextColor(WHITE);
    
    // Draw the line patterns
    int xStart = 10;  // Starting x coordinate for the lines
    int yStart = 20;  // y coordinate for the lines
    int lineLength = 20; // Length of each segment
    
    // Draw vertical lines
    oled.drawLine(xStart, yStart, xStart, yStart + 30, WHITE); // First vertical line
    xStart += lineLength + 10; // Move x coordinate to the right for the next line
    oled.drawLine(xStart, yStart, xStart, yStart + 30, WHITE); // Second vertical line
    xStart += lineLength + 10; // Move x coordinate to the right for the next line
    oled.drawLine(xStart, yStart, xStart, yStart + 30, WHITE); // Third vertical line
    xStart += lineLength + 10; // Move x coordinate to the right for the next line
    oled.drawLine(xStart, yStart, xStart, yStart + 30, WHITE); // Fourth vertical line
    
    // Draw horizontal lines
    int yOffset = 10; // Offset for horizontal lines
    oled.drawLine(10, yStart + 15 - yOffset, 10 + lineLength, yStart + 15 - yOffset, WHITE); // First horizontal line
    oled.drawLine(10 + lineLength + 10, yStart + 15 - yOffset, 10 + 2 * (lineLength + 10), yStart + 15 - yOffset, WHITE); // Second horizontal line
    oled.drawLine(10 + 2 * (lineLength + 10) + 10, yStart + 15 - yOffset, 10 + 3 * (lineLength + 10), yStart + 15 - yOffset, WHITE); // Third horizontal line

    // Update display with all changes
    oled.display();
}

void loop() {
    // Put your main code here, to run repeatedly:
}