Hi I'm new for STM32.I want to use Nucleo-f401re for my wireless design.The block diagram as per attached file.The EV2400 is interface module for battery management system BQ4050.I want to collect data from EV2400 via usb.

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Then I want to call AT command to trigger LTE module EC25 and also transfer the data collected from EV2400 to EC25 by using Nucleo-f401re.Please advise the solution.