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

#define SCREEN_WIDTH 128 // OLED width in pixels.
#define SCREEN_HEIGHT 64 // OLED height (pixels)
#define OLED_RESET -1 // reset pin (-1 means share Arduino reset pin)
#define I2C_ADDRESS 0x3C // Common I2C address (0x3C or 0x3D)

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

void setup() {
  Wire.begin(SDA, SCL); // Initialize I2C, default pins of XIAO ESP32S3 are D4(SDA)/D5(SCL).

  // Initialize OLED display
  if(!display.begin(SSD1306_SWITCHCAPVCC, I2C_ADDRESS)) {
    Serial.println(F("SSD1306 failed to allocate"));
    for(;;); // stuck loop
  }

  display.clearDisplay(); // clear display cache
  display.setTextSize(1); // set the text size (1:1 ratio)
  display.setTextColor(SSD1306_WHITE); // draw white text

  display.setCursor(0, 0); // start coordinate (0,0)
  display.println("hello, fab academy"); // draw white text.

  display.println("hello, fab academy");
  display.display(); // output the cached content to the screen
}

void loop() {
  // Empty loop, only need to display once
}