did you read what i said? … But good catch that the port it is plugged into is not IIC! I didnt see the photo Its a problem with the difference between wire or some other dependancy which is different on XIAO ESP32 instead of SAMD… this is seeming to be a common problem as code ages, and people use DEFINE and interdependancy of code that is in many ways not obvious… What da? I downloaded a different library from gethub and that one didnt compile at all… Someone who is smarter than me could probably re-write the code in the mater of minutes