1.3 Inch OLED Display with I2C Interface (SH1106 Controller)

Description

OLED Display 1.3 Inch I2C Interface – 4-Pin Blue SH1106 Module

The 1.3 Inch OLED Display with I2C Interface (SH1106 Controller) is a high-quality graphical display module designed for Arduino, ESP8266, ESP32, STM32, Raspberry Pi, IoT devices, and embedded systems. Featuring a 1.3-inch diagonal screen, crisp resolution, and vibrant blue OLED pixels, this display provides excellent readability even in low-light or outdoor conditions.

Powered by the reliable SH1106 display controller, this OLED module supports smooth graphics, text rendering, and icons with minimal power consumption. Its 4-pin I2C interface makes wiring extremely simple, requiring only power and two data lines, making it ideal for compact and pin-limited projects.

SH1106 OLED at a glance

Controller	SH1106 (132 × 64 display memory; 128 × 64 pixels are visible)
Interface	I2C, 4 pins; the SH1106 supports I2C clock up to 400 kHz
I2C address	0x3C on most modules (0x3D on some); run an I2C scanner if the screen stays blank
Module supply	3.3 V to 5 V
Library	Use an SH1106 library (U8g2 or Adafruit SH110X), not an SSD1306 one

SH1106 OLED pinout and wiring

Wire by the labels printed on the board. The pin order (VCC and GND first or GND and VCC first) is not the same on every 1.3 inch module, and swapping VCC and GND can damage the display.

OLED pin	Arduino UNO / Nano	Arduino Mega	ESP32 (30-pin board)	ESP8266 NodeMCU
VCC	5V or 3.3V	5V or 3.3V	3.3V	3.3V
GND	GND	GND	GND	GND
SDA	A4	20	GPIO21	D2 (GPIO4)
SCL	A5	21	GPIO22	D1 (GPIO5)

You need a board such as the Nano R3 CH340, ESP32 30-pin CP2102 board or NodeMCU ESP8266 V3, four Dupont jumper wires and, for a quick test, a 400-point breadboard.

SH1106 vs SSD1306: why the picture looks shifted

The 0.96 inch OLEDs use the SSD1306 controller, while this 1.3 inch module uses the SH1106. The SH1106 has 132 columns of display memory for a 128-pixel-wide panel, so the visible image starts 2 columns in. An SSD1306 library therefore draws the picture shifted, with a strip of random dots at one edge or a garbled screen. The fix is to use a library written for the SH1106; the wiring stays the same.

Arduino example code (U8g2)

Install U8g2 by olikraus from the Arduino Library Manager, then upload:

#include <U8g2lib.h>
#include <Wire.h>

U8G2_SH1106_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, U8X8_PIN_NONE);

void setup() {
  u8g2.begin();
}

void loop() {
  u8g2.clearBuffer();
  u8g2.setFont(u8g2_font_ncenB08_tr);
  u8g2.drawStr(0, 12, "Hello from INFYNIQS");
  u8g2.drawFrame(0, 20, 128, 44);
  u8g2.sendBuffer();
  delay(1000);
}

If you prefer the Adafruit drawing functions, install Adafruit SH110X (it uses Adafruit GFX) and create the display as Adafruit_SH1106G.

Frequently asked questions

What is the I2C address of the 1.3 inch SH1106 OLED?
Usually 0x3C. The SH1106 can also use 0x3D, so if nothing appears, run an I2C scanner sketch to read the address.

Can I use the Adafruit SSD1306 library with this display?
Not reliably. The picture is shifted by 2 columns and the edge shows noise. Use U8g2 with an SH1106 constructor or the Adafruit SH110X library.

Does it work with 3.3 V boards such as the ESP32?
Yes. The module runs from 3.3 V to 5 V, so power it from the ESP32’s 3.3V pin and connect SDA and SCL directly.

How is it different from the 0.91 inch OLED?
The 0.91 inch OLED is 128 × 32 pixels; this 1.3 inch module is 128 × 64 with a larger screen, so it fits twice as many lines of text. More screens are in Display Modules.

Reference: SH1106 datasheet (Sino Wealth, PDF).

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🔍 Key Features of 1.3 Inch OLED Display SH1106 I2C

• 1.3-inch OLED display

• SH1106 controller IC

• I2C / IIC serial interface

• 4-pin connection (VCC, GND, SDA, SCL)

• Blue OLED display for high visibility

• High contrast and sharp graphics

• Ultra-low power consumption

• No backlight required

• Wide viewing angle

• Compact PCB design

• Compatible with Arduino, ESP32, ESP8266, STM32

• Excellent for battery-powered devices

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⚙️ How the 1.3 Inch SH1106 OLED Display Works

The 1.3 Inch OLED Display SH1106 I2C Module uses OLED (Organic Light Emitting Diode) technology, where each pixel emits its own light. Unlike LCD displays, OLEDs do not need a backlight, which results in:

• Deeper blacks

• Higher contrast ratio

• Faster refresh rate

• Lower power consumption

The SH1106 controller manages display memory and pixel mapping, allowing microcontrollers to easily draw text, numbers, and graphics via the I2C communication protocol.

Because I2C uses only two data lines, this display is perfect for projects where GPIO pins are limited.

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📊 Technical Specifications

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🔌 Pin Configuration & Interface

The 1.3 Inch OLED Display SH1106 module uses a standard 4-pin I2C interface:

• VCC – Power supply (3.3V / 5V)

• GND – Ground

• SDA – I2C Data

• SCL – I2C Clock

This simple interface ensures fast and error-free integration with most microcontroller platforms.

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🧩 Compatibility & Integration

The 1.3 Inch OLED Display SH1106 I2C Module is fully compatible with:

• Arduino UNO / Nano / Mega

• ESP8266 Wi-Fi modules

• ESP32 development boards

• STM32 microcontrollers

• Raspberry Pi (I2C mode)

• IoT controllers and embedded boards

It works smoothly with popular libraries such as:

• U8g2 Library

• Adafruit SH110X (with Adafruit GFX)

• ESP32 / ESP8266 OLED libraries

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🧪 Common Applications

This OLED display module is widely used in:

• Arduino and microcontroller projects

• IoT dashboards and status displays

• Robotics control panels

• Battery-powered devices

• Smart home systems

• Wearable electronics

• Data loggers

• Portable measurement instruments

• Educational electronics kits

Its larger size compared to 0.96-inch displays allows better readability and more information on screen.

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🎓 Ideal for Education & Prototyping

The 1.3 Inch OLED Display SH1106 is extensively used in:

• Engineering colleges and universities

• Embedded systems labs

• IoT and robotics workshops

• STEM education programs

• Student mini and final-year projects

Students can easily learn I2C communication, graphical UI design, and real-time data visualization using this module.

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⚠️ Usage Tips & Best Practices

• Confirm the correct I2C address (commonly 0x3C)

• Use proper OLED libraries for SH1106

• Avoid static discharge on OLED surface

• Do not exceed rated voltage

• Turn off display when idle to save power

• Use short I2C wires for stable communication

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📦 Package Includes

• 1 × OLED Display 1.3 Inch I2C Interface 4-Pin Blue SH1106 Module

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✅ Why Buy from INFYNIQS

• Genuine and quality-tested OLED modules

• Ideal for DIY, education & professional use

• Bulk and institutional supply available

• Trusted electronics components marketplace

• Technical support for Arduino & IoT projects