Thank you for your answer, but I still don't understand that the App communicates with external devices through the USB-C port, and the accessories must be MFi certified? If authentication is required, does the app use the External Accessory library to communicate with peripherals?

Thank you for your answer, but I still don't understand that the App communicates with external devices through the USB-C port, and the accessories must be MFi certified? If authentication is required, does the app use the External Accessory library to communicate with peripherals?

Thank you for your answer, but I still don't understand that the App communicates with external devices through the USB-C port, and the accessories must be MFi certified? If authentication is required, does the app use the External Accessory library to communicate with peripherals?

Thank you for your answer, but I still don't understand that the App communicates with external devices through the USB-C port, and the accessories must be MFi certified? If authentication is required, does the app use the External Accessory library to communicate with peripherals?

Thank you for your answer, but I still don't understand that the App communicates with external devices through the USB-C port, and the accessories must be MFi certified? If authentication is required, does the app use the External Accessory library to communicate with peripherals?

Thank you for your answer, but I still don't understand that the App communicates with external devices through the USB-C port, and the accessories must be MFi certified? If authentication is required, does the app use the External Accessory library to communicate with peripherals?

Thank you for your answer, but I still don't understand that the App communicates with external devices through the USB-C port, and the accessories must be MFi certified? If authentication is required, does the app use the External Accessory library to communicate with peripherals?

Thank you for your answer, but I still don't understand that the App communicates with external devices through the USB-C port, and the accessories must be MFi certified? If authentication is required, does the app use the External Accessory library to communicate with peripherals?

Thank you for your answer, but I still don't understand that the App communicates with external devices through the USB-C port, and the accessories must be MFi certified? If authentication is required, does the app use the External Accessory library to communicate with peripherals?

I'm sorry, I submitted 7 times, because when I submitted, it kept prompting me that the submission failed, and I clicked submit many times, and I didn't know it would be like this. My accessories are the USB-C door lock independently developed by our company, the purpose is to communicate with the peripherals by using the USB-C of the App, so do our peripherals need MFI certification?