Mithat Konar (the wiki)

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/* * display_SSD1306_OLED_u8g2.ino * * Test screen update speed with large solid fonts on * a 128×64 OLED screen that uses the SD1306 chip. * * Consumes 46% of program storage space and * 28% of dynamic memory on a Nano. * * Mithat Konar */

#include <U8g2lib.h>

/*

 Pin assignments:
 RST: 8
 CE/CS/SCE: 10
 DC/"D/C"/A0: 9
 DIN/DN/MOSI/DATA: 11 (Arduino HW standard)
 CLK/SCLK/SCK: 13  (Arduino HW standard)
 VCC: 5V (part is allegedly 5V tolerant)
 GND: ground

*/

const unsigned int CLOCK_PIN = 13,

                 DATA_PIN = 11,
                 CS_PIN = 10,
                 DC_PIN = 9,
                 RESET_PIN = 8;

U8G2_SSD1306_128X64_NONAME_1_4W_HW_SPI disp = U8G2_SSD1306_128X64_NONAME_1_4W_HW_SPI(U8G2_R0, CS_PIN, DC_PIN, RESET_PIN);

unsigned int counter = 80; char dispStr[4]; null terminated char array used to pass to renderer. void setup(void) { disp.begin(); disp.setColorIndex(1); } void loop(void) { counter = (counter + 1) % 1000; picture loop

disp.firstPage();
do {
  disp.setFont(u8g2_font_6x13_tr);
  disp.drawStr(0, 13, "SSD1306 u8g2");

  disp.setFont(u8g2_font_logisoso46_tr);
  String(counter).toCharArray(dispStr, 4);
  disp.drawStr( 0, 63, dispStr);
} while ( disp.nextPage() );

/* inherent frame rate is about 13 fps with 16 MHz processor 
   (without additional delay). */
delay(500);

}