Fermion: Serial Data Logger V2.0 for Arduino (แท้ DFRobot)

• MicroSD Memory Card 16G
• MicroSD Memory Card 32G
• MicroSD Memory Card 64G
• MicroSD Memory Card 128G

• Supports storage in TXT and CSV file formats.
• Significantly improves startup time and runtime stability.
• Supports scheduled creation of files for more flexible storage.
• Added USB port to make reading files more convenient.

Connection Diagram

Pinout

• With USB function, no card reader required
• Support multiple baud rates, with good compatibility
• LED indicator for viewing data writing status visually
• FAT32 file system, support 32GB TF card
• Supports storage in TXT and CSV file formats.
• Supports scheduled creation of files for more flexible storage.

• Supply Voltage: 3.3V~5V
• Operating Current: 10mA
• USB Protocol: USB2.0
• Operating Temperature Range: -20℃~65℃
• Operating Humidity Range: 5%RH~85%RH
• Dimension: 23*29mm/0.91*1.14”

• Fermion: Serial Data Logger x1
• 2.54-10P Black Single-row Connector x1

• Product Wiki
• Schematics
• Dimensions

Pinout

SD LED indicator is the one for data interaction between module and storage. It blinks when data is being written or a new file is being created.

Tutorial

Requirements

• Hardware
  • Arduino UNO R3 x 1
  • Fermion: Serial Data Logger x 1
  • M-M/F-M/F-F Jumper wires

• Software
  • Arduino IDE

Connection Diagram

Sample Code 1 - Write Data

Write data to the module through Serial.print, save a file every once in a while.

#define SPIN 6 //Connect to the module Pin S, trigger to save files at low level
uint16_t i = 0;

void setup(void)
{
Serial.begin(9600);
delay(2000); //To aviod data lost, delay a period of time to wait for the module to start
pinMode(SPIN, OUTPUT);
digitalWrite(SPIN, HIGH);
}

void loop(void)
{
Serial.println(String(i));
i++;
if((i % 10) == 0){
digitalWrite(SPIN, LOW);
delay(500);
digitalWrite(SPIN, HIGH);
}
delay(300);
}

Sample Code 2 - Write data in CSV format

NOTE: In the config.txt file, set FileFormat to 1

#define SPIN 6 //Connect to the module Pin S, trigger to save files at low level
uint16_t i = 0;

void setup(void)
{
Serial.begin(9600);
delay(2000); //To aviod data lost, delay a period of time to wait for the module to start
pinMode(SPIN, OUTPUT);
digitalWrite(SPIN, HIGH);
}

void loop(void)
{
Serial.println(String(i));
i++;
if((i % 10) == 0){
digitalWrite(SPIN, LOW);
delay(500);
digitalWrite(SPIN, HIGH);
}
delay(300);
}

FAQ

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