Raspberry Pi 3 B+ & 4 mic array

Hi there,



We have 2 Grove ports on board, one is GPIO(GPIO12 and GPIO13), the other is I2C SDA and SCL. For the sensors, what’s kinds of protocol do they use?

If both of them are using GPIO, we can use separate GPIO grove port to 2 Grove ports to connect with 2 GPIO sensors. thanks.



Bill