After uploading the sketch, open the Arduino Serial Monitor (Tools > Serial Monitor). The sketch will automatically detect the I2C address of the connected LCD module and initialize it. You should see ...

🔄 Data Flow Arduino reads sensor data from BME680 (I2C address 0x76). It sends 8 bytes (2 bytes each for Temp, Pressure, Humidity, Gas) via CAN bus. ESP32-S3 receives the CAN frame, parses it, and: ...