However, I do not get any display.
If I check the wiki OLEDDisplay, it mentions for the connection:
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LCD ESP-01 GND GND VCC VCC SDA GPIO 0 SCL GPIO 2
From tools I use the "oledcmd,on" and "oldedcmd,off" commands, but also the "oled,1,1,"try out" commands (and variants with variables)
Nothing works. The oled stays black.
I also connected a pushbutton to activate the oled, but still nothing.
Am I doing something stupid?