There is limited workable G0 pin at M5StickC in the current version of the hardware!
It's could not possible to scan I2C sensor at (0,26) pins
At the same time, there is no problem for (32,33) or (32,26) pins
There was not such a problem in the older version of hardware M2StickC
This problem take place just for some kinds of I2C sensors, f.e. SGP30
This means the M5Stack is officially certified for use with Microsoft Azure cloud services.
Below is a link to a video demo showing how to connect M5Stack to Azure using Mongoose OS. This video is targeted at Mac users but Mongoose OS can also be used on Windows or Linux.
Details on Mongoose OS: https://mongoose-os.com/
Details on Microsoft - Azure IoT Fundamentals: https://docs.microsoft.com/en-us/azure/iot-fundamentals/