Arduino Oled: It is not difficult at all to connect an OLED display to an Arduino . The Arduino offers all the necessary requirements for this: an SPI interface, Arduino Due or Nano both run at 3.3V and they are programmable. For Arduino Uno, a level converter for the data lines must be connected in between as it runs at 5V. However, a simple voltage divider also works.
The OLED is wired according to the data sheet, some displays require an additional +12V to control the pixels. But there is also a circuit diagram for this as well as for the wiring of the data lines from the Arduino to the OLED. Displays are available from 0.96" up to 5.5". An example of the programming can be found here. And here you can buy OLED displays - not only for the Arduino.
Arduino is a single-board computer with a free development environment with a programming language similar to C or C++.
Further information on OLED displays.

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