KC868-A6v3 ESP32-S3 6 channel LoRa relay module - Printable Version +- Smart Home Automation Forum (https://www.kincony.com/forum) +-- Forum: Technical Support (https://www.kincony.com/forum/forumdisplay.php?fid=20) +--- Forum: KC868-A6 (https://www.kincony.com/forum/forumdisplay.php?fid=22) +--- Thread: KC868-A6v3 ESP32-S3 6 channel LoRa relay module (/showthread.php?tid=9106)

KC868-A6v3 ESP32-S3 6 channel LoRa relay module - mcdave - 03-05-2026 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: What GPIO pins are used for the OLED I2C (SDA / SCL)? What is the I2C address (0x3C or 0x3D)? Do we need to initialize any IO expander or controller before using the OLED? Do you have a simple Arduino example to initialize the onboard OLED? Thank you. RE: KC868-A6v3 ESP32-S3 6 channel LoRa relay module - admin - 03-06-2026 already replied in another topic.