You can also swap the 0 ohm resistors on the oled to swap the polarity of the pins. See here. https://github.com/meshtastic/Meshtastic-device/wiki/Hardware-Information#tt-go-t-beam
You can also swap the 0 ohm resistors on the oled to swap the polarity of the pins. See here. https://github.com/meshtastic/Meshtastic-device/wiki/Hardware-Information#tt-go-t-beam