OpenLog - simple serial microSD data logger

Description

The device is used to write data directly tothe microSD card andcommunicatesthrough a simple serial interface (RX and TX outputs). The module supports cards up to 32 GB with FAT16 and FAT32 file system.

Support

The device should be connected through the serial interface UART - RX and TX outputs. After the power supply is switched on and data is transmitted, OpenLog will start writing them onthe card.Default transmission speed is9600 bps. In order to enter configuration mode, a sequence of three timesctrl+z,command ."newcreates a new file,"md"newcatalogue. Configuration fileconfig.txt,whichis located on the memory card can be edited from the computer. This allows you to easily select the operating mode and set the transmission speed.

Specification .

    Input voltage: 3.3 V to 12 V
    Serial communication interface - UART (RX, TX)
    Simple set of commands
    Support formicroSD memorycardsup to 32 GB (sold separately)
    Possibility to edit the configuration file from the computer
    Configurabletransmission speed from 300 to 1000000bps
    Minimum connection: power, ground and RX pin
    Programmable ATmega328p using Arduino IDE (environment to version 1.6.5).
    Two status LEDs
    Power consumption:
        Maximum: 6 mA
        Idle state:2 mA
    Plate dimensions 19 x 15 x 4 mm

Useful links

• Example program for Arduino
• Module description in the GitHub server
• User Manual
• Set of commands
• Module diagram
• Software Update Instructions
• Sample project
  
• Eagle files
• Github