KC868-A6v3 ESP32-S3 6 channel LoRa relay module

[mcdave]

Hello admin,
I am using the KinCony KC868-A6v3 and  kincony ALR lora board and developing custom firmware with Arduino / PlatformIO.
The SSD1306 OLED works with the factory firmware, but when I upload my own firmware the LCD stays blank.
Could you please tell me:

1. What GPIO pins are used for the OLED I2C (SDA / SCL)?
   
2. What is the I2C address (0x3C or 0x3D)?
   
3. Do we need to initialize any IO expander or controller before using the OLED?
   
4. Do you have a simple Arduino example to initialize the onboard OLED?
   

Thank you.

[admin]

already replied in another topic.