Using CH375B module for Record Data from Arduino with serial codes

Hello everyone. I bought CH375B module and i have arduino pro mini kit. what can i do for to design if i want to record data from arduino pro mini to CH375B module. So, i want to use txt file that is stored one in CH375B module. I need hardware and library. Thanks for view.

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i got Arduino Mega 2560 also. i worked on bottom site, but not enough.

My opinion is that library's some commands not operate. I tested part of part code , but not.
If i false in this case , please warn to me.