Overview

This article I2C OLED Display with Arduino demonstrates how to use the Arduino and the SSD1306 0.96-inch I2C OLED display. We’ll show you some features of the OLED display, how to connect it to the Arduino board, and how to write text, draw shapes and display bitmap images.

Introduction

In the realm of DIY electronics, one of the most fascinating combinations is the Arduino microcontroller and OLED displays. In this beginner’s guide, we will delve into the world of I2C OLED displays and explore how to integrate them with an Arduino. By the end of this article, you will have the knowledge and confidence to embark on exciting projects of your own.

What is an OLED Display?

An OLED (Organic Light-Emitting Diode) display is a cutting-edge technology that emits light when an electric current is applied. Unlike traditional LCDs, OLEDs do not require a backlight, resulting in vibrant colors, high contrast, and excellent visibility, even in low-light conditions. These displays are widely used in smartphones, smartwatches, and numerous other electronic devices.

OLED Display

What is I2C Communication?

Inter-Integrated Circuit (I2C) is a simple and widely-used serial communication protocol that enables multiple devices to communicate over just two wires: SDA (Serial Data) and SCL (Serial Clock). I2C is particularly useful for connecting peripherals, like OLED displays, to microcontrollers such as Arduino, allowing seamless data exchange between devices.

Working Principle Of I2C OLED Display with Arduino

The I2C OLED display with Arduino works by establishing communication between the Arduino and the display using the I2C protocol. The Arduino sends commands and data to the display, which processes and controls the individual pixels on the OLED screen to display the desired content. The Arduino can continuously update the display, making it suitable for various applications, from basic text displays to more interactive and dynamic projects.

Circuit Diagram

Circuit Diagram Of I2C OLED Display with Arduino

Connect the GND pin of the OLED display to any GND pin on the Arduino board.

Connect the VCC pin of the OLED display to the 5V pin on the Arduino board.

Connect the SDA pin of the OLED display to the A4 (Analog 4) pin on the Arduino board.

Connect the SCL pin of the OLED display to the A5 (Analog 5) pin on the Arduino board

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