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SSD1306 OLED

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128×64 monochrome OLED over I²C. Displays 'Hello!' and display info using the Adafruit SSD1306 library. Default I²C address is 0x3C.

intermediateOLEDI2CdisplaySSD1306monochrome
Circuit
Code
sketch.inoArduino C++
25 lines
// SSD1306 OLED — Hello World over I2C
#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>

#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 64
#define OLED_RESET -1  // share Arduino reset pin

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

void setup() {
  display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
  display.clearDisplay();
  display.setTextColor(SSD1306_WHITE);
  display.setTextSize(2);
  display.setCursor(0, 0);
  display.println("Hello!");
  display.setTextSize(1);
  display.println("SSD1306 OLED");
  display.println("128 x 64 pixels");
  display.display();
}

void loop() {}
Components
  • Arduino Uno
    01
  • SSD1306 OLED (wokwi-ssd1306)
    02
Wiring
Component PinArduino Pin
VIN3.3V (or 5V)
GNDGND
DATA (SDA)A4 (SDA)
CLK (SCL)A5 (SCL)