After waiting almost a month, I opened up the OLED and went right to testing it out. The link in the description pointed me to this website, which is a tutorial from Adafruit. Apparently, Adafruit ...

The Arduino Nano multiplies this number by 60 and displays the RPM on the OLED screen. What we absolutely love about this build is the care that taken in designing the case.

For the build photos it looks like there’s an Arduino Nano running the show; [Nick] relates that the chosen hardware proved challenging, and that he had to hack the driver library to make it work.

The MicroView is a "Chip-Sized" arduino-compatible that features a built-in OLED display, and is sized perfectly for bread boarding, or use in many different projects.

The Pixelduino, that is equipped with a full colour 1.5 inch Arduino OLED display and has been designed by Rabid Prototypes and includes a built-in microSD card ...