You might be right. Have a look at the Arduino_AlvikCarrier.h library file, looks like there is some external I2C selector implemented.
Also, if you have multimeter you could measure resistance between Grove connector and Esp A4/A5.
You might be right. Have a look at the Arduino_AlvikCarrier.h library file, looks like there is some external I2C selector implemented.
Also, if you have multimeter you could measure resistance between Grove connector and Esp A4/A5.