I am also struggling for days now trying to display anything on an OLED 128x32 display with an SDD1306 driver.
Driver IC: SSD1306
Size: 0.91 inch OLED
Resolution: 128 x 32
Voltage: DC 3.3-5V
So frustrating that I can only find information about how to connect a 128x64 display.
And also it is very confusing that there is a lot of information about the attiny chip with AVR programmers or C language, I want to use is on a digispark with the arduino IDE.
If you installed it with the library manager within Arduino IDE -
Also, at least with my cheapo digispark, it complains there isn't enough space for the example DigisparkOLED.ino to compile but you can just comment out the two bitmap examples (and includes) which nearly halves the program size.