1.3 Inch I2C IIC 4 pin OLED Display Module

1.3″ OLED screen with 128×64 resolution
I2C interface – requires only 2 data pins (SDA, SCL)
White or blue pixels on black background (batch-dependent)
Ultra-low power consumption for energy-efficient projects
Wide viewing angles and high contrast display
Based on SSD1306 controller – compatible with U8g2 and Adafruit libraries
3.3V to 5V operating voltage – works with most microcontrollers
Compact design with mounting holes for easy installation

SKU: Aa2233 Categories: Display Modules, Electronic Modules, OLED Display Tags: Display Modules, Electronic Modules, I2C, OLED Display

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Description

This is a 1.3 inch blue OLED display module. The display module can be interfaced with any microcontroller using SPI/IIC protocols. It is having a resolution of 128×64. The package includes a display board, display, 6 pin male header pre-soldered to board.

OLED (Organic Light-Emitting Diode) is a self-light-emitting technology composed of a thin, multi-layered organic film placed between an anode and cathode. In contrast to LCD technology, OLED does not require a backlight. OLED possesses high application potential for virtually all types of displays and is regarded as the ultimate technology for the next generation of flat-panel displays.

OLEDs basic structure consists of organic materials positioned between the cathode and the anode, which is composed of electric conductive transparent Indium Tin Oxide (ITO). The organic materials compose a multi-layered thin film, which includes the Hole Transporting Layer (HTL), Emission Layer (EML) and the Electron Transporting Layer (ETL). By applying the appropriate electric voltage, holes and electrons are injected into the EML from the anode and the cathode, respectively. The holes and electrons combine inside the EML to form excitons, after which electroluminescence occurs. The transfer material, emission layer material, and choice of electrode are the key factors that determine the quality of OLED components.

Pin Details:

GND (power ground)
VCC (positive power supply)
SCL (clock line)
SDA (data line)

Features:

Only Need 2 I/O Port to Control
Resolution : 128×48 pixels
Color: Blue
Fully Compatible with Arduino
Working temperature: -30°C ~ 70°C
Factory configured for SPI protocol (can be easily changed to IIC)

Package Includes:

1 x GoldenMorning 1.3 Inch I2C IIC 4 pin OLED Display Module with VCC GND-Blue

🔌

Pin Connections

1 Table

Pin Connections Table 1

Board Name	Component / Sensor	Connection Details
Arduino Uno	1.3 OLED	VCC->5V, GND->GND, SDA->A4, SCL->A5 (level shift may be required)
Arduino Nano	1.3 OLED	VCC->5V, GND->GND, SDA->A4, SCL->A5 (level shift may be required)
Arduino Mega	1.3 OLED	VCC->5V, GND->GND, SDA->20, SCL->21 (level shift may be required)
ESP32	1.3 OLED	VCC->3.3V, GND->GND, SDA->GPIO21, SCL->GPIO22
ESP8266	1.3 OLED	VCC->3.3V, GND->GND, SDA->GPIO4 (D2), SCL->GPIO5 (D1)
STM32	1.3 OLED	VCC->3.3V, GND->GND, SDA->PB7 (or I2C1 SDA), SCL->PB6 (or I2C1 SCL)
Raspberry Pi Pico	1.3 OLED	VCC->3.3V, GND->GND, SDA->GP0, SCL->GP1

📟

1.3 Inch OLED Display (I2C)

7 Examples • C/C++ | Boards: Arduino Uno, Arduino Nano, Arduino Mega, ESP32, ESP8266, STM32, Raspberry Pi Pico

Wrap Dark

OLED Display on Arduino Uno

OLED Display on Arduino Nano

OLED Display on Arduino Mega

OLED Display on ESP32

OLED Display on ESP8266

OLED Display on STM32

OLED Display on Raspberry Pi Pico

Code Comments:

Arduino Uno code for 1.3" OLED using Adafruit libraries. Note: if OLED is 3.3V-only, use level shifter on SDA/SCL.

📄 File: oled_display_on_arduino_uno.inoArduino Uno

1076 characters

1/*

2 * ekostra.com

3 * ekostra electronics store in egypt

4 */

6#include <Wire.h>

7#include <Adafruit_GFX.h>

8#include <Adafruit_SSD1306.h>

10// OLED dimensions

11#define SCREEN_WIDTH 128

12#define SCREEN_HEIGHT 64

14// I2C address (typically 0x3C or 0x3D)

15#define OLED_ADDR 0x3C

17// Declaration for SSD1306 display connected via I2C

18Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

20void setup() {

21 // Initialize serial for debugging

22 Serial.begin(9600);

23 Serial.println("OLED Display on Arduino Uno");

25 // Initialize OLED

26 if(!display.begin(SSD1306_SWITCHCAPVCC, OLED_ADDR)) {

27 Serial.println("SSD1306 allocation failed");

28 for(;;); // halt

29 }

30 display.clearDisplay();

31 display.setTextSize(1);

32 display.setTextColor(SSD1306_WHITE);

33 display.setCursor(0, 0);

34 display.println("Hello, OLED!");

35 display.display();

36 delay(2000);

37}

39int counter = 0;

41void loop() {

42 display.clearDisplay();

43 display.setTextSize(2);

44 display.setCursor(10, 10);

45 display.print("Count: ");

46 display.println(counter);

47 display.display();

48 counter++;

49 delay(1000);

50}

Code Comments:

Arduino Nano code for 1.3" OLED. Same as Uno, pinout: SDA-A4, SCL-A5.

📄 File: oled_display_on_arduino_nano.inoArduino Nano

897 characters

1/*

2 * ekostra.com

3 * ekostra electronics store in egypt

4 */

6#include <Wire.h>

7#include <Adafruit_GFX.h>

8#include <Adafruit_SSD1306.h>

10#define SCREEN_WIDTH 128

11#define SCREEN_HEIGHT 64

12#define OLED_ADDR 0x3C

14Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

16void setup() {

17 Serial.begin(9600);

18 Serial.println("OLED Display on Arduino Nano");

19 if(!display.begin(SSD1306_SWITCHCAPVCC, OLED_ADDR)) {

20 Serial.println("SSD1306 allocation failed");

21 for(;;);

22 }

23 display.clearDisplay();

24 display.setTextSize(1);

25 display.setTextColor(SSD1306_WHITE);

26 display.setCursor(0, 0);

27 display.println("Hello, OLED!");

28 display.display();

29 delay(2000);

30}

32int counter = 0;

34void loop() {

35 display.clearDisplay();

36 display.setTextSize(2);

37 display.setCursor(10, 10);

38 display.print("Count: ");

39 display.println(counter);

40 display.display();

41 counter++;

42 delay(1000);

43}

Code Comments:

Arduino Mega code for 1.3" OLED. SDA=20, SCL=21. Level shift may be needed.

📄 File: oled_display_on_arduino_mega.inoArduino Mega

939 characters

1/*

2 * ekostra.com

3 * ekostra electronics store in egypt

4 */

6#include <Wire.h>

7#include <Adafruit_GFX.h>

8#include <Adafruit_SSD1306.h>

10#define SCREEN_WIDTH 128

11#define SCREEN_HEIGHT 64

12#define OLED_ADDR 0x3C

14// For Mega, SDA is pin 20, SCL is pin 21

15Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

17void setup() {

18 Serial.begin(9600);

19 Serial.println("OLED Display on Arduino Mega");

20 if(!display.begin(SSD1306_SWITCHCAPVCC, OLED_ADDR)) {

21 Serial.println("SSD1306 allocation failed");

22 for(;;);

23 }

24 display.clearDisplay();

25 display.setTextSize(1);

26 display.setTextColor(SSD1306_WHITE);

27 display.setCursor(0, 0);

28 display.println("Hello, OLED!");

29 display.display();

30 delay(2000);

31}

33int counter = 0;

35void loop() {

36 display.clearDisplay();

37 display.setTextSize(2);

38 display.setCursor(10, 10);

39 display.print("Count: ");

40 display.println(counter);

41 display.display();

42 counter++;

43 delay(1000);

44}

Code Comments:

ESP32 code for 1.3" OLED. SDA=21, SCL=22. 3.3V logic, compatible.

📄 File: oled_display_on_esp32.inoESP32

934 characters

1/*

2 * ekostra.com

3 * ekostra electronics store in egypt

4 */

6#include <Wire.h>

7#include <Adafruit_GFX.h>

8#include <Adafruit_SSD1306.h>

10#define SCREEN_WIDTH 128

11#define SCREEN_HEIGHT 64

12#define OLED_ADDR 0x3C

14// ESP32 default I2C pins: SDA=21, SCL=22

15Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

17void setup() {

18 Serial.begin(115200);

19 Serial.println("OLED Display on ESP32");

20 if(!display.begin(SSD1306_SWITCHCAPVCC, OLED_ADDR)) {

21 Serial.println("SSD1306 allocation failed");

22 for(;;);

23 }

24 display.clearDisplay();

25 display.setTextSize(1);

26 display.setTextColor(SSD1306_WHITE);

27 display.setCursor(0, 0);

28 display.println("Hello, OLED!");

29 display.display();

30 delay(2000);

31}

33int counter = 0;

35void loop() {

36 display.clearDisplay();

37 display.setTextSize(2);

38 display.setCursor(10, 10);

39 display.print("Count: ");

40 display.println(counter);

41 display.display();

42 counter++;

43 delay(1000);

44}

Code Comments:

ESP8266 code for 1.3" OLED. SDA=GPIO4, SCL=GPIO5. 3.3V logic.

📄 File: oled_display_on_esp8266.inoESP8266

946 characters

1/*

2 * ekostra.com

3 * ekostra electronics store in egypt

4 */

6#include <Wire.h>

7#include <Adafruit_GFX.h>

8#include <Adafruit_SSD1306.h>

10#define SCREEN_WIDTH 128

11#define SCREEN_HEIGHT 64

12#define OLED_ADDR 0x3C

14// ESP8266 I2C pins: SDA=GPIO4 (D2), SCL=GPIO5 (D1)

15Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

17void setup() {

18 Serial.begin(115200);

19 Serial.println("OLED Display on ESP8266");

20 if(!display.begin(SSD1306_SWITCHCAPVCC, OLED_ADDR)) {

21 Serial.println("SSD1306 allocation failed");

22 for(;;);

23 }

24 display.clearDisplay();

25 display.setTextSize(1);

26 display.setTextColor(SSD1306_WHITE);

27 display.setCursor(0, 0);

28 display.println("Hello, OLED!");

29 display.display();

30 delay(2000);

31}

33int counter = 0;

35void loop() {

36 display.clearDisplay();

37 display.setTextSize(2);

38 display.setCursor(10, 10);

39 display.print("Count: ");

40 display.println(counter);

41 display.display();

42 counter++;

43 delay(1000);

44}

Code Comments:

STM32 code for 1.3" OLED (Arduino STM32 core). I2C1 SDA=PB7, SCL=PB6. 3.3V logic.

📄 File: oled_display_on_stm32.inoSTM32

962 characters

1/*

2 * ekostra.com

3 * ekostra electronics store in egypt

4 */

6#include <Wire.h>

7#include <Adafruit_GFX.h>

8#include <Adafruit_SSD1306.h>

10#define SCREEN_WIDTH 128

11#define SCREEN_HEIGHT 64

12#define OLED_ADDR 0x3C

14// For STM32 (Arduino core), I2C1 defaults to PB6 (SCL) and PB7 (SDA)

15Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

17void setup() {

18 Serial.begin(115200);

19 Serial.println("OLED Display on STM32");

20 if(!display.begin(SSD1306_SWITCHCAPVCC, OLED_ADDR)) {

21 Serial.println("SSD1306 allocation failed");

22 for(;;);

23 }

24 display.clearDisplay();

25 display.setTextSize(1);

26 display.setTextColor(SSD1306_WHITE);

27 display.setCursor(0, 0);

28 display.println("Hello, OLED!");

29 display.display();

30 delay(2000);

31}

33int counter = 0;

35void loop() {

36 display.clearDisplay();

37 display.setTextSize(2);

38 display.setCursor(10, 10);

39 display.print("Count: ");

40 display.println(counter);

41 display.display();

42 counter++;

43 delay(1000);

44}

Code Comments:

Raspberry Pi Pico code for 1.3" OLED. SDA=GP0, SCL=GP1. 3.3V logic.

📄 File: oled_display_on_raspberry_pi_pico.inoRaspberry Pi Pico

1012 characters

1/*

2 * ekostra.com

3 * ekostra electronics store in egypt

4 */

6#include <Wire.h>

7#include <Adafruit_GFX.h>

8#include <Adafruit_SSD1306.h>

10#define SCREEN_WIDTH 128

11#define SCREEN_HEIGHT 64

12#define OLED_ADDR 0x3C

14// Pico I2C0 pins: SDA=GP0, SCL=GP1

15Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, -1);

17void setup() {

18 Serial.begin(115200);

19 Serial.println("OLED Display on Raspberry Pi Pico");

20 // Initialize I2C

21 Wire.setSDA(0);

22 Wire.setSCL(1);

23 Wire.begin();

24 if(!display.begin(SSD1306_SWITCHCAPVCC, OLED_ADDR)) {

25 Serial.println("SSD1306 allocation failed");

26 for(;;);

27 }

28 display.clearDisplay();

29 display.setTextSize(1);

30 display.setTextColor(SSD1306_WHITE);

31 display.setCursor(0, 0);

32 display.println("Hello, OLED!");

33 display.display();

34 delay(2000);

35}

37int counter = 0;

39void loop() {

40 display.clearDisplay();

41 display.setTextSize(2);

42 display.setCursor(10, 10);

43 display.print("Count: ");

44 display.println(counter);

45 display.display();

46 counter++;

47 delay(1000);

48}

Project Notes:

This project demonstrates how to interface a 1.3-inch 128x64 OLED display (I2C, 4 pins) with various microcontrollers. The code displays a simple greeting and a counter. Voltage levels: OLED modules usually accept 3.3V–5V (many have onboard regulators). However, for 5V boards (Uno, Nano, Mega), if the OLED is strictly 3.3V-only, use level shifters or voltage dividers on SDA/SCL lines. Refer to the OLED datasheet. The I2C address is typically 0x3C or 0x3D.

Required Libraries:

Adafruit SSD1306GitHub

Adafruit GFX LibraryGitHub

Specification

WeightWeight	15 g
Dimensions	5 × 3 × 1 cm
display-type	OLED (Organic Light-Emitting Diode)
screen-size	1.3 inches (diagonal)
color	Monochrome (Blue)
resolution	Typically 128×64 pixels (varies by model)
interface	I²C
viewing-angle	Wide (~160° or more)
brightness	High contrast, self-emissive pixels
power-supply	3.3V or 5V (varies by model)
operating-temperature	-30°C to +70°C (approx.)
dimensions	~35mm x 35mm (varies by model)
thickness	Ultra-thin (few millimeters)

Customer Reviews

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