I was confused by this b/c I didn’t believe that the Grove kit would be outputting 3v3 on any PCB trace since all the grove connections from the Lotus board when you break it out is 5V and all the grove sensors seem to have a 3v3 regulator and logic level shifters if needed. So I had to confirm for myself and made a image from the PCB viewer to help clarify anyone who was confused by this weird 3v3 rail that shouldn’t really be needed. Thanks everyone!