Thanks Bill !
Sorry - I have only this datasheet in my Post #11
An Inquerry at WINSTAR result this Demo Code:
REX001602_4bit_6800.zip (2.2 KB)
And a Notice/Remark:
https://www.winstar.com.tw/de/technology/oled.html
Mayby is this helpful for you.
I will answer your mail separately as soon as possible.
These OLEDs are mutch sold on Aliexpress - I think many people
would be happy and be excited about a library for the Arduino.
See you soon,
many Greetings
maik