u8g2 and Heltec WiFi_LoRa32_V2

[nex86]

is it supported?
I have no idea what Constructor to pick, I checked the list and got overwhelmed by the choices quickly..
Anyone here who have this board can help me out?
Help would be much appreciated.

[olikraus]

Is there any datasheet of the device?

[nex86]

Is there any datasheet of the device?

I guess?
https://doc.riot-os.org/group__boards__esp32__heltec-lora32-v2.html

"a SSD1306 0.96-inch 128x64 OLED display connected via I2C."

I have tried
"U8G2_SSD1306_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);"
but it stays black.

[olikraus]

I suggest to use U8G2_SSD1306_128X64_NONAME_F_SW_I2C. Probably you need to figure out the pin numbers to which the display is connected. According to this page https://escapequotes.net/esp32-lora-heltec-v2-with-display-pinout-diagram/ pin 15 and pin 4 are used, so maybe
U8G2_SSD1306_128X64_NONAME_F_SW_I2C u8g2(U8G2_R0, 15, 4, U8X8_PIN_NONE) might work.