Last Updated on 14 October 2023 by Suffocation
I'd like to connect a small 128x64 pixel OLED display for a small project. I've developed a small prototype for this which I'd like to present here.
Ich betreibe das Display an einem Arduino Uno über den Wire Bus.
Components
Hardware
- Arduino Uno or similar
- OLED Display SD1306
- Prototype shield or a breadboard
- A few connecting cables
Software
- Arduino IDE (Installation)
- Adafruit Adafruit_SSD1306 Unified Library
- Test programme from the library
Experimental setup
I'm using the prototype add-on board (See here).
The display is powered by the Arduino. Additionally, data communication takes place via the Wire bus, which is located on ports A4 and A5 of the Arduino Uno.
Schematic
Library
There are also other libraries for the SD1306, but the Adafruit one, with minor adjustments, was the easiest for me to use. With others, I also had the problem that the Arduino's memory was too small.
Either get the latest version via GITHUB or install it via the library manager.
As it goes here.
Programming
Library preparation
A very annoying characteristic of the Adafruit library is that the display size define in the preprocessor has to be changed within the library. This is set to 128x32 pixels by default.
Also search the library on the hard drive, the file is named:
Adafruit_SSD1306.h
In the current version, line 74 is commented out and line 73 is reinstated.
Example programme
I am using an example program belonging to the library:
Pfad: Adafruit SDD 1306 -> sdd1306_128x64_i2c
How to choose a test program you will find here.
Upload the program to the Arduino, and it should all work then.