Getting Started with Gravity: Serial Data Logger V2.0 for Arduino - Setup Guide

This guide offers a detailed walkthrough for first-time module users, covering initial setup, storage formatting, CONFIG.TXT generation, and configuration of communication settings for efficient data management.

For First Time Use

If the storage is not formatted, format the storage first. The file system is FAT32.
Power on the module for over 2 seconds (not from USB host) to make the module automatically generate the CONFIG.TXT file, and the SD light will blink once.
Check whether the CONFIG.TXT file is generated normally, if not, refer to FAQ please. You can change the module communication baud rate and file storage name by changing CONFIG.TXT file.
Connect the module to the maincontroller serial port to store data.

Note

Don't send data to the module serial port before CONFIG.TXT file is generated.
Don't connect the USB and serial port at the same time.
Connect a PC through USB. It is recommended to eject the USB flash drive before removing the module.

Configuration file parameters

Configuration file parameters
Baud: Serial communication baud rate selection (00 corresponds to 2400 baud rate, 01 corresponds to 4800 baud rate). The module baud rate must match the baud rate of the main control serial port printing in order to store data normally.
FileNum: The file sequence number for the next new file (FileNum=0099, the next generated file name will be FILE0099.txt). The file sequence number automatically increments. If the file already exists, it will overwrite the current file.
FileFormat: File storage format, 0-TXT, 1-CSV.
Time: Automatically create files on schedule, 0-Do not create files on schedule, N-Create files every N minutes to store data [N: 0~10080 (one week)].