Getting Started

For First Time Use

1. Format the SD card
   1.1 Press the "Win+R" keys and then enter "diskpart" to enter the command prompt interface
   1.2 Enter “list disk” to display the storage list
   1.3 Enter “select disk X” (X is the disk number of the SD card) to select the disk
   1.4 Enter “clean” to clear the disk partition information
   1.5 Enter “convert mbr” to convert the disk to MBR format
   1.6 Enter “create partition primary” to create a partition
   1.7 Enter “select partition 1” to select the created partition
   1.8 Enter “format fs=fat32 quick” to quickly format the disk to FAT32
2. Power on the module through the power supply of the UART interface for more than 2 seconds, so that the module automatically generates the CONFIG.TXT file.
3. Check whether the CONFIG.TXT file is generated normally. You can modify the module parameters by modifying CONFIG.TXT.
4. Connect the module to the main control serial port to store data normally.

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)].