I want to know that is EC200U-CN can transfer the file to cloud using any protocol

IoT Modules LTE Standard Module
1

i am using 7 semi ESP32-S3 + EC200U-CN CAT1 module and i want to transfer the file from sd card which is connected with esp32-s3 to cloud by using ec200u-cn so give me solution how i can do this

2

Hi Maheshwari,

Thank you for sharing your setup details. You can follow the steps below to transfer the files using FTP

  1. Connect ESP32-S3 to EC200U-CN and
  2. Initialize SD Card on ESP32-S3
  • Mount SD card
  • Open the required file in read mode
  • Read the file in small chunks (512/1024 bytes)
  1. Initialize EC200U-CN with AT commands below:

ATE0
AT+CPIN?
AT+CSQ
AT+CREG?

  1. Configure APN and Activate Data

AT+CGDCONT=1,“IP”,“”
AT+CGACT=1,1

  1. Configure FTP Parameters

AT+QFTPCFG=“contextid”,1
AT+QFTPCFG=“account”,“”,“”

  1. Open FTP Connection

AT+QFTPOPEN=“ftp.server.com”,21 // Replace the url with the target server

  1. Start File Upload

AT+QFTPPUT=“filename.bin”,1
Wait for CONNECT

  • Send File Data over UART

  • Send data chunk by chunk until file ends

End Upload: Send +++ to finish transfer

Wait for OK / response

  1. Close FTP Session

AT+QFTPCLOSE