I haven't been able to successfully wire it to an Arduino (Mega 2560) however. I have been reading up on I2C and SPI and checked some libraries from Adafruit and U8G2.
However, I'm confused, since most of the Internet is talking about a similar OLED display with GND - VDD - SCL - SDA labelled pins, where mine has SCK instead of SCL.
Now, the number of pins make me believe I need to interface with I2C, but the SCK label points to SPI, right?
One person seemed to have the same problem as me, but the solution he got (pull-up resistors) didn't do the trick for me, I'm afraid.
So, my question remains: how to wire this OLED display to the Mega 2560?
Much appreciated if someone could point me to the right direction.