Input voltage 3.3V ~ 12V (recommended for 3.3V ~ 5V)
Memory format is FAT32, supports up to 64GB of memory
UART serial interface
Baud rate adjustable
The default bootloader is pro mini atmega328P 5V 16mhz
Support stored to fat16 / fat32 format tf card, storage capacity up to 32G
It has a simple command line interface
Change the tf card's config file on your computer (if it's a new card, insert the card for the first time after power-on, the config file will be created automatically) to change settings such as baud rate. You do not need to buy any specialized tools to change the serial settings to use your needs.
Three modes: new, add, command
Baud rate can be set 300-1000000bps
To ensure the operation of the minimum connection vcc, gnd, rx
Two led lights indicate the running status
Input voltage 3.3V to 12V, preferably 3.3 to 5V.
Idle current 2ma, the maximum recording rate 6ma.