#define SDA 22
#define SCL 14

#include <SPI.h>
#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)
#define OLED_RESET     -1 // Reset pin # (or -1 if sharing Arduino reset pin)
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

#define NUMFLAKES     10 // Number of snowflakes in the animation example

#define LOGO_HEIGHT   16
#define LOGO_WIDTH    16
static const unsigned char PROGMEM logo_bmp[] =
{ B00000000, B11000000,
  B00000001, B11000000,
  B00000001, B11000000,
  B00000011, B11100000,
  B11110011, B11100000,
  B11111110, B11111000,
  B01111110, B11111111,
  B00110011, B10011111,
  B00011111, B11111100,
  B00001101, B01110000,
  B00011011, B10100000,
  B00111111, B11100000,
  B00111111, B11110000,
  B01111100, B11110000,
  B01110000, B01110000,
  B00000000, B00110000 };

static const unsigned char name[] = {
    0x10, 0x00, 0x00, 0x40, 0x04, 0x10, 
    0x10, 0x00, 0x22, 0x40, 0x84, 0x10, 
    0x23, 0xf8, 0x12, 0x40, 0x44, 0x28, 
    0x20, 0x08, 0x13, 0xfc, 0x1f, 0x44, 
    0x48, 0x08, 0x84, 0x40, 0x84, 0x82, 
    0xf0, 0x08, 0x48, 0x40, 0x5f, 0x00, 
    0x10, 0x08, 0x40, 0x40, 0x51, 0xee, 
    0x23, 0xf8, 0x17, 0xfe, 0x1f, 0x22, 
    0x42, 0x08, 0x10, 0x00, 0x31, 0xaa, 
    0xfa, 0x00, 0x20, 0x00, 0x5f, 0x66, 
    0x42, 0x00, 0xe3, 0xf8, 0xc4, 0x22, 
    0x02, 0x02, 0x22, 0x08, 0x5f, 0x66, 
    0x1a, 0x02, 0x22, 0x08, 0x44, 0xaa, 
    0xe2, 0x02, 0x22, 0x08, 0x44, 0x22, 
    0x41, 0xfe, 0x23, 0xf8, 0x44, 0xaa, 
    0x00, 0x00, 0x02, 0x08, 0x04, 0x44
};

void setup() {
  Serial.begin(115200);
  Wire.begin(/*SDA*/SDA,/*SCL*/SCL);
  // SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally
  if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { 
    Serial.println(F("SSD1306 allocation failed"));
    for(;;); // Don't proceed, loop forever
  }

  // Show initial display buffer contents on the screen --
  // the library initializes this with an Adafruit splash screen.
  display.display();
  delay(2000); // Pause for 2 seconds
  // display.display() is NOT necessary after every single drawing command,
  // unless that's what you want...rather, you can batch up a bunch of
  // drawing operations and then update the screen all at once by calling
  // display.display(). These examples demonstrate both approaches...


  // testdrawchar();      // Draw characters of the default font
  testdrawname();
}

void loop() {

}

void testdrawname(void){
  display.clearDisplay();
  // display.drawBitmap(0, 0, name, 128, 64, 1);
  display.setTextSize(1);             
  display.setTextColor(WHITE);        
  display.setCursor(28,28);             
  display.println("jhh");
  display.setCursor(52,28);             
  display.println("&&");
  display.setCursor(70,28);             
  display.println("zsm");
  display.display();
}

void testdrawchar(void) {
  display.clearDisplay();

  display.setTextSize(1);      // Normal 1:1 pixel scale
  display.setTextColor(WHITE); // Draw white text
  display.setCursor(0, 0);     // Start at top-left corner
  display.cp437(true);         // Use full 256 char 'Code Page 437' font

  // Not all the characters will fit on the display. This is normal.
  // Library will draw what it can and the rest will be clipped.
  for(int16_t i=0; i<256; i++) {
    if(i == '\n') display.write(' ');
    else          display.write(i);
  }

  display.display();
  delay(2000);
}