Subsequent investigations revealed that the initialization error was due to a physical connection issue. Initially, I didn't pay much attention to the fact that the M5Stack did not come with screws to secure its bottom, but after using my own screws to fasten the USB Host Shield (M5STACK-M020) in place, Usb.init() began to succeed. I apologize for any inconvenience this may have caused and appreciate everyone's patience.
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RE: I connected a USB Host Shield (M5STACK-M020) to the M5Stack BASIC 2.7 (M5Core), but encountered a USB initialization error.posted in Global Communities