The First Usage of 0.96" I2C OLED Display With Arduino UNO

Today, I am going to show you how to use 0.96" I2C OLED display with Arduino UNO board. There are a lot of different type of OLED displays. I have got 4-pinned OLED display with me. This displays can be with SPI pins instead of I2C. These versions can be seen on Adafruit's website

The Need List:

1. Arduino UNO (With USB A to B cable)

2. 0.96" I2C OLED display (4-pinned)

3. Tiny Breadboard or male-female tiny cables

4. Your computer (Arduino IDE loaded)

Download the file below, then copy the codes to paste on Arduino IDE.

On Arduino IDE >> Sketch >> Include Library >> Manage Libraries >> search for Adafruit_SSD1306 then install, and search for Adafruit_GFX then install.

Also check Adafruit's Github page for more

Arduino 3.3V - VCC OLED

Arduino GND - GND OLED

Arduino Analog In A5 - SCL OLED

Arduino Analog In A4 - SDA OLED

When we loaded Adafruit library we need to modify it.

Go to the folder where Arduino libraries are loaded,

C:\Users\<em>**your pc name**</em>\Documents\Arduino\libraries\Adafruit_SSD1306 

On this folder, find Adafruit_SSD1306.h file, click on it or press F2 to rename, rename it as Adafruit_SSD1306.h.txt then find this sentences in the middle of the codes, seems like:

<p>//#define SSD1306_128_64<br>   #define SSD1306_128_32
//#define SSD1306_96_16</p>

Comment the 32, and uncomment the 64 as

<p>     #define SSD1306_128_64<br>//   #define SSD1306_128_32
//   #define SSD1306_96_16</p>

CTRL + S to save this text. Go to the library folder and find Adafruit_SSD1306.h.txt to rename as Adafruit_SSD1306.h then return to Arduino IDE.

On Arduino IDE (I used v1.6.8 for this instructables, learn how to update/download Arduino IDE) click on upload button to upload the codes from your computer to your Arduino UNO via USB cable type A to type B.

After the upload, click on reset button on Arduino board, then check your OLED display for the joy :D

Let's see what the temperature and the humidity ratio are on our OLED display. I modified the codes. On below, you can get code.txt file as codes are written on there by Bay Yolal.

The connections are like this:

Arduino 3.3V - VCC OLED

Arduino GND - GND OLED

Arduino Analog In A5 - SCL OLED

Arduino Analog In A4 - SDA OLED

Arduino 5V - VCC DHT11

Arduino GND - GND DHT11

Arduino pin 2 - Data DHT11

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Note: code.txt is the original code included. code_°C.txt file is for displaying the centigrade degree symbol.

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That's all !

NOTE: This instructable's step is aimed for visually impaired people to hear the sentences to learn what's going on here. Watch the video, it explains all steps.