TEL0148, Fermion: Serial Data Logger for Arduino

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The TEL0148 is a Data Logger for the Arduino. It supports a 32GB TF card and can be connected directly to a PC computer.

The Serial Data Logger supports a 32GB TF card, making it suitable for long-time data storage. It comes with a USB function, which means you can directly connect it to a PC to read the stored files without using a card reader. Meanwhile, with the onboard LED indicator, data writing status can be viewed visually. And the onboard SAVE pin makes it easier to store data into separate files.


  • With USB function, no card reader is required
  • Support multiple baud rates, with good compatibility
  • LED indicator for viewing data writing status visually
  • FAT32 file system, support 32GB TF card


  • Supply Voltage: 3.3V~5V
  • Operating Current: 23mA
  • USB Protocol: USB2.0
  • Operating Temperature Range: -30℃~85℃
  • Operating Humidity Range: 5%RH~85%RH
  • Dimension: 23.5*22.5mm/0.93*0.89”


  • Offline data collection
  • Capture product debug logs
  • Robots and drones debug



  1. Fermion: Serial Data Logger x1
  2. 2.54-5P Black Single-row Connector x2

Schematics (f0c363cdbf4c507720deb26c77c9799c.pdf, 95 Kb) [Download]

Dimensions (93168ea9644108fe18b25b10a99a10db.pdf, 30 Kb) [Download]