@felmue

BTW i forgot to mention that I also removed those nasty magnets as they disturb the used magnetometer. The metal screws where also replaced with plastic made.

@felmue

Hi Felix
thanks for your fast answer. Meanwhile I have also been looking at the GPIOs used on M5Stack and found out that GPIO36 can only be used as an input. I got my soldering gun and removed the black GROVE connector and wired a new one in White. directly to the PoGo Pins at the bottom of the M5GO. Works perfect. Would have fine not modify the module but you cannot have everything.

Can anyone give me help using Grove B (BLACK) as I2c to read a compass module. I cannot use Port A (RED) as there is no space in my waterproof case.